Junior Android Developer (Delivery Experience)

🏢 Summary: Mobile Android Developer role in the Delivery Experience (DEX) team focused on building and improving features related to package selection, tracking, and pickup within a large, modularized mobile codebase. The position involves developing scalable mobile solutions, maintaining clean architecture, and collaborating with experienced mobile engineers. You will contribute to innovative delivery-related functionalities used by millions of users. 🗂️ Requirements: Basic understanding of Android SDK, Basic knowledge of mobile development techniques, Familiarity with Kotlin, Understanding of version control systems, Ability to write clean and maintainable code, English B2 level, Polish B2 level 📃 Skills: Android, AndroidSDK, Kotlin, Git 🏢 Description: Join our Delivery Experience squad, where we handle everything related to package selection, tracking, and pickup. Important things for you Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work; The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): 11 200 - 15 250PLN gross Annual bonus (depending on your annual assessment and the company's results) Our team is based in Poznań Your main responsibilities: As part of the Mobile DEX (Delivery Experience) team, you will work on one of the industry's largest and most modularized codebases. Mobile DEX is focused on helping users choose the best delivery method, keeping track of parcels and picking them up from various places using multiple methods. We are not only implementing new features but also working on improving the whole process, delivering innovative solutions and keeping the codebase clean and scalable. You will be working with a team of skilled mobile engineers with high seniority level. You will also be part of Allegro’s mobile community composed of more than 100 mobile developers. In our community, we actively share knowledge as part of our daily code review work and at dedicated company events. We have time dedicated to knowledge sharing as well as opportunities for team building and listening to inspiring guests from outside the company. This is the right job for you if: You are passionate about mobile application development You have a basic understanding of Android SDK and mobile development techniques You are eager to learn and adapt to new technologies You possess strong problem-solving skills and the ability to think critically You have familiarity with Kotlin programming language You can work effectively in a collaborative team environment You have excellent communication skills and a positive attitude You are open to receiving feedback and have a willingness to improve You understand the importance of writing clean, maintainable code You possess a basic understanding of version control systems like Git You know English and Polish at least at B2 level What's in it for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. Annual bonus based on your annual performance and company results. Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Software/DevOps Engineer role focused on improving Developer Experience and maintaining core tools that power the software delivery lifecycle, including CI/CD, infrastructure, and internal platforms. The position combines Java/Kotlin development with large-scale Linux systems administration and automation in a highly scalable microservices environment. You will build and maintain reliable, automated, and developer-friendly infrastructure supporting hundreds of releases across the organization. 🗂️ Requirements: Proficiency in Java and/or Kotlin, Strong Linux administration skills, Experience with CI/CD pipelines, Experience with Infrastructure as Code approach, Ability to automate processes (e.g. using Ansible), Experience managing GitHub and GitHub Enterprise, Knowledge of containerization and orchestration concepts, Experience working with microservices architecture, English level B2 or higher 📃 Skills: Java, Kotlin, Linux, Ansible, GitHub, GitHubActions, Kubernetes, Docker, Consul, MongoDB, CI/CD, IaC, Microservices 🏢 Description: Important things for you Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN PLN 14 200 - 19 690 Annual bonus based on your annual performance and company results. Our team is based in Poznań. About the job Allegro’s development teams boast more than 1700 IT experts solving problems at a unique scale and complexity. However, if you join us, you’ll be joining a specific team that operates like a small, agile startup within our large organization. Our team is strongly Developer Experience (DevEx) driven, focusing on the core tools and components  that powers Allegro's software delivery lifecycle. We maintain the very heartbeat of our development process: from managing a massive selfhosted runners cluster and administrating Github enterprise to building tools that define how we build and release code. We are looking for a Software/DevOps Engineer who enjoys the intersection of software engineering and infrastructure, ensuring that our SDLC is fast, reliable, and scalable. We are a versatile team with diverse competencies, handling everything from our own Java/Kotlin microservices (backed by MongoDB ) to maintaining a central library that serves as the essential bridge between developers and our infrastructure. We are passionate about our internal users - the dozens of engineers who rely on our tools every day - and we work closely with them to ensure that CI/CD processes , from the first line of code  to final deployment, are a seamless experience. You’ll be joining a group where you can have a direct, daily impact on how hundreds of releases are handled across the company. We are looking for people who: Code in Java and / or Kotlin Are proficient in Linux and feel at home managing systems that operate at a massive scale Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews Believe that "manual" is a bug – you automate everything (ex. using Ansible) and follow the Infrastructure as Code (IaC) philosophy Can look for effective solutions that solve business and technical challenges Can navigate GitHub and know how to build efficient, developer-friendly environments for  CI/CD pipelines Want to expand their skills into containerization and orchestration to help us build even more portable and resilient systems Want to constantly develop and update their knowledge, not only regarding software, but also in other domains like Big Data depending on clients needs Know English at B2+ level What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Full-stack developer role in a Scrum team building and migrating Allegro’s platform to a unified One Account architecture. The position involves developing backend services and frontend components at large scale using modern infrastructure and AI-driven tools. You will work on high-traffic microservices and data-intensive systems within a mature DevOps environment. 🗂️ Requirements: Proficiency in Java and/or Kotlin, Experience in backend service development, Ability to work with frontend technologies, Experience in Scrum/Agile environment, Knowledge of microservices architecture, Familiarity with containerization and orchestration, Experience with version control and CI/CD tools, English level B2+ 📃 Skills: Java, Kotlin, JavaScript, Kubernetes, Docker, Consul, GitHub, GitHubActions, Scrum, Microservices, AI 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN PLN 14 600 - 20 825 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the job Allegro’s development teams boast more than 1700 IT experts solving problems at a unique scale and complexity. However, if you join us, you’ll be joining a specific team that operates like a small, agile startup within our large organization. Based mostly in Warsaw, our team consists of six skilled developers and a dedicated Product Manager. We work in a mature Scrum environment, leveraging Allegro’s world-class infrastructure and cutting-edge development standards to ensure high-velocity, high-quality delivery. We are a full-stack team handling everything from our UI frontend and backend services to large-scale data processing. You'll be joining a group with varied experience levels, offering a great environment to both learn and make a significant impact. Our team culture is defined by a forward-thinking mindset; we deeply integrate AI-driven tools into our daily workflows and development processes to optimize productivity and innovation. By combining agile methodologies with the latest technological advancements, we maintain a sharp focus on building a scalable, future-proof platform for the entire Allegro ecosystem. The main area which the team is focused on is The One Account initiative - a strategic transformation of Allegro’s ecosystem, migrating from a fragmented, account-centric legacy architecture to a unified, company-level platform We are looking for people who: Code in Java and / or Kotlin Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews Can look for effective solutions that solve business and technical challenges Want to constantly develop and update their knowledge Are not afraid to occasionally develop frontend part of solution Can travel between Warsaw and Poznań once a quarter for team workshops Know English at B2+ level What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Full-stack developer role in a Scrum team working on the strategic One Account initiative, transforming a legacy architecture into a unified, scalable platform. The position involves developing backend services and frontend components using Java and/or Kotlin within a large-scale microservices ecosystem. The offer includes a hybrid work model (4/1), flexible hours, competitive salary, annual bonus, and extensive development opportunities. 🗂️ Requirements: Proficiency in Java and/or Kotlin, Willingness to work in a full-stack role including frontend tasks, Experience working in Agile/Scrum environment, Ability to design effective technical solutions for business problems, Openness to code reviews and knowledge sharing, Continuous learning and self-development mindset, English level B2+, Availability to travel between Warsaw and Poznań once a quarter 📃 Skills: Java, Kotlin, Scrum, Kubernetes, Docker, Consul, GitHub, GitHubActions, Microservices, ServiceMesh, Hermes, AI 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN PLN 14 600 - 20 825 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the job Allegro’s development teams boast more than 1700 IT experts solving problems at a unique scale and complexity. However, if you join us, you’ll be joining a specific team that operates like a small, agile startup within our large organization. Based mostly in Warsaw, our team consists of six skilled developers and a dedicated Product Manager. We work in a mature Scrum environment, leveraging Allegro’s world-class infrastructure and cutting-edge development standards to ensure high-velocity, high-quality delivery. We are a full-stack team handling everything from our UI frontend and backend services to large-scale data processing. You'll be joining a group with varied experience levels, offering a great environment to both learn and make a significant impact. Our team culture is defined by a forward-thinking mindset; we deeply integrate AI-driven tools into our daily workflows and development processes to optimize productivity and innovation. By combining agile methodologies with the latest technological advancements, we maintain a sharp focus on building a scalable, future-proof platform for the entire Allegro ecosystem. The main area which the team is focused on is The One Account initiative - a strategic transformation of Allegro’s ecosystem, migrating from a fragmented, account-centric legacy architecture to a unified, company-level platform We are looking for people who: Code in Java and / or Kotlin Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews Can look for effective solutions that solve business and technical challenges Want to constantly develop and update their knowledge Are not afraid to occasionally develop frontend part of solution Can travel between Warsaw and Poznań once a quarter for team workshops Know English at B2+ level What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Full-stack developer role in a Scrum team building a unified One Account platform, working on backend services, frontend components, and large-scale data processing within a microservices ecosystem. The position focuses on developing scalable solutions using modern infrastructure and AI-driven tools in a high-scale production environment. 🗂️ Requirements: Proficiency in Java and/or Kotlin, Experience with backend and frontend development, Experience working in Scrum, Ability to design scalable microservices, Experience with large-scale data processing, Willingness to use AI-driven development tools, English B2+ level, Availability for quarterly travel between Warsaw and Poznań 📃 Skills: Java, Kotlin, Scrum, Microservices, Kubernetes, Docker, Consul, GitHub, GitHubActions, Hermes, ServiceMesh, AI, MacOS, Windows 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN PLN 14 600 - 20 825 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the job Allegro’s development teams boast more than 1700 IT experts solving problems at a unique scale and complexity. However, if you join us, you’ll be joining a specific team that operates like a small, agile startup within our large organization. Based mostly in Warsaw, our team consists of six skilled developers and a dedicated Product Manager. We work in a mature Scrum environment, leveraging Allegro’s world-class infrastructure and cutting-edge development standards to ensure high-velocity, high-quality delivery. We are a full-stack team handling everything from our UI frontend and backend services to large-scale data processing. You'll be joining a group with varied experience levels, offering a great environment to both learn and make a significant impact. Our team culture is defined by a forward-thinking mindset; we deeply integrate AI-driven tools into our daily workflows and development processes to optimize productivity and innovation. By combining agile methodologies with the latest technological advancements, we maintain a sharp focus on building a scalable, future-proof platform for the entire Allegro ecosystem. The main area which the team is focused on is The One Account initiative - a strategic transformation of Allegro’s ecosystem, migrating from a fragmented, account-centric legacy architecture to a unified, company-level platform We are looking for people who: Code in Java and / or Kotlin Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews Can look for effective solutions that solve business and technical challenges Want to constantly develop and update their knowledge Are not afraid to occasionally develop frontend part of solution Can travel between Warsaw and Poznań once a quarter for team workshops Know English at B2+ level What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Backend Software Engineer role focused on designing and evolving large-scale logistics and location intelligence systems. The position involves building and optimizing high-volume data processing solutions, ensuring system scalability, reliability, and architectural excellence. You will take ownership of mission-critical services operating at massive scale within a microservices ecosystem. 🗂️ Requirements: Strong backend development experience with Kotlin, Experience designing scalable software architecture, Experience with high-volume data processing systems, Ability to design and maintain microservices-based systems, Experience monitoring system health and performance metrics, Ability to refactor and optimize complex systems, English proficiency at B2+ level, Willingness to participate in off-hours duty 📃 Skills: Kotlin, Architecture, Backend, Microservices, Scalability, DataProcessing, Kubernetes, Docker, Consul, GitHub, GitHubActions, Hermes, ServiceMesh, Monitoring, Metrics, Geodata, MachineLearning, AI, English 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 14 600 - 20 825 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the Job Allegro is home to 2,500+ tech experts, but our team? We’re the ones ensuring the physical reality of e-commerce runs flawlessly. We are the driving force behind the Logistics platform, focusing on the massive-scale ecosystem. Our strategic imperative is vital: ensuring business continuity and total platform independence. We are building systems robust and scalable enough to instantly absorb our total traffic volume. We’re currently tackling scale challenges by evolving how we manage system capacity and traffic routing. As we expand our network of external logistics partners, we are refactoring our architecture to process hundreds of millions of records, accurately predict system load, and optimize volume distribution. But we’re not just moving parcels. We are also defining and executing a unified, cross-organizational location intelligence strategy - moving beyond ad-hoc solutions to standardize geo-data and optimize how we handle addressing at a massive scale. If you hate fragile systems, have a deeply analytical mindset, and want to build logistics infrastructure that thrives under pressure - you’re in the right place. The Role We are looking for a Software Engineer 2 with a strong background in back-end programming ( Kotlin ) and software architecture who is ready to lead structural improvements in high-volume data processing software and location intelligence. You will be taking ownership of complex systems where your decisions directly impact our operational efficiency. Your day-to-day will involve everything from designing scalable system architecture and tackling complex technical challenges, to writing high-quality code and ensuring the stability of core software products. Because our systems are mission-critical, you will also monitor core system health and operational metrics, ensuring high performance, data accuracy, cost-efficiency and you will participate in off-hours duty for team products. We are looking for people who: Are Architecture-Minded : Possess a strong background in back-end coding (Kotlin) and software architecture to design reliable, high-performance systems for massive-scale data. Seek Impact : Desire work with measurable results, focusing on building resilient logistics ecosystems and ensuring flawless operational smoothness across markets. Value Craftsmanship : Take pride in their code, actively manage technical debt, create clear documentation, and mentor less experienced team members. Are Problem Solvers : Find effective solutions for complex challenges, weighing trade-offs between custom and 3rd-party software and integrating solutions smoothly. Embrace Complexity : Navigate tasks from well-defined to ambiguous, bridging technical expertise and logistics domain knowledge for optimal architectural decisions. Are Life-long Learners : Continuously develop their knowledge, staying up-to-date with advancements in back-end architecture, high-volume data processing, and logistics operations. Communicate Effectively : Know English at a B2+ level and can clearly translate complex technical concepts to technical and non-technical stakeholders. What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 2000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Backend Engineer role focused on developing and maintaining public APIs for creating products and offers, using Java/Kotlin and integrating Generative AI workflows. The position involves building robust backend systems at scale, ensuring code quality, and contributing to architectural decisions within a microservices ecosystem. 🗂️ Requirements: Proficiency in Java and/or Kotlin, Willingness to work with Generative AI workflows, Experience in backend development, Ability to work with microservices architecture, Knowledge of code quality, testing, and architectural standards, English B2 level, Polish B2 level 📃 Skills: Java, Kotlin, GenAI, Kubernetes, Docker, Consul, GitHub, GitHubActions, Microservices, REST, API, Hermes, ServiceMesh, MachineLearning 🏢 Description: The team you will be joining manages the public APIs responsible for creating new products and offers on Allegro. Their core mission is to streamline this process for the broadest possible range of partners. To achieve this, they develop robust backend systems and integrate Generative AI workflows to ensure effortless offer management. Important things for you Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work; The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): 10 700 - 14 900PLN gross Annual bonus (depending on your annual assessment and the company's results) Our team is based in Poznań We are looking for people who: Code in Java and/or Kotlin. Are willing to work with GenAI workflows. Expect work that has a deeper meaning (not only tasks "management has commissioned") and want to enjoy its results. Want to be proud of the code they create. Eagerly accept comments and share knowledge during code reviews. Can look for effective solutions to the requirements set by users. Want to constantly develop and update their knowledge. Know English and Polish at B2 level. Your responsibilities: Executing well-defined tasks with medium complexity within the scope of team projects. Completing tasks based on predefined priority levels. Understanding the user and their perspective to inform development decisions. Using semantic code and learn the basics of accessibility to avoid common barriers for users with disabilities. Conducting off-hours duty on team products - possible via joint employee's and manager's decisions. Taking responsibility and ownership for developed features. Proposing and implementing solutions to engineering challenges. Seeking assistance from teammates when needed to overcome technical obstacles. Making decisions about code constructs and consulting with the team on architectural issues. Suggesting design process improvements to enhance product quality. Identifying logical errors in the codebase and proposing actionable improvements. Defining and reporting technical debt to ensure long-term quality at the code and architecture levels. Actively acquiring and applying product domain knowledge during development. Considering the impact of work on other domains to ensure system-wide consistency. Building a solid foundation in the chosen technology stack. Learning new technologies and apply the acquired knowledge effectively in projects. Meeting quality standards including code readability, testing, architecture, stability, and monitoring. Focusing on mastering and working within a single core technology. Occasionally providing constructive feedback. Incorporating received feedback into ongoing work and professional development. Collaborating and communicate effectively with others using facts and data. Engaging in self-development and pursuing growth within well-defined professional areas. Occasionally sharing knowledge with the team or individual colleagues. What's in it for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. Annual bonus based on your annual performance and company results. Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Backend Engineer role in the Advertising team focused on building and operating high-availability, large-scale microservices and ML-powered systems. The position involves designing and optimizing distributed systems using a modern cloud-native stack (Kotlin, Spring, Kafka, Kubernetes) and integrating big data and machine learning components into a real-time marketplace. The offer includes hybrid work, competitive salary, annual bonus, and strong ownership within an autonomous agile team. 🗂️ Requirements: Proficiency in Kotlin or Java, Willingness to work with Kotlin in greenfield projects, Experience with backend development and microservices, Ability to design and optimize high-performance, distributed systems, Experience with cloud-native technologies, Understanding of data processing and system integration, English proficiency at B2 level or higher 📃 Skills: Kotlin, Java, Spring, Kafka, Kubernetes, BigQuery, Spark, Docker, Consul, GitHub, GitHubActions, MachineLearning, Microservices 🏢 Description: Important things for you Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 11 200 - 15 250 Annual bonus based on your annual performance and company results. Our team is based in Poznań. About the job Massive Scale : Design, build, and optimize systems that handle thousands of requests per minute. This is high-availability, high-performance engineering in practice. Modern Tech Stack : Work with a world-class, cloud-native environment. Our core technologies include Kotlin, Spring, Kafka, and Kubernetes. We're not shy when it comes to ML too :) True Ownership & Autonomy : We live by a "you build it, you run it" philosophy. You'll join an agile, autonomous team with full ownership of your microservices, from design to deployment. Complex Challenges : From distributed systems and data streaming to algorithmic optimization, you'll tackle the complex backend problems that power a massive, real-time marketplace. End-to-End ML Systems: Bridge the gap between big data and real-time product impact. You’ll build the infrastructure for serving ML models , using BigQuery and Apache Spark for offline data processing. You’ll integrate these components with our microservices architecture to create the sophisticated advertising system that powers a personalized user experience. Join the Advertising team! You will have a chance to build Allegro Ads - one of the most visible products on the platform. Your team works closely with the Machine Learning team, creating the best experience for customers. High performance, engineering best practices and great atmosphere in the team guaranteed! We are looking for people who: Code in Kotlin or Java and are eager to master Kotlin by taking part greenfield project Want to be proud of the code they create ; they value high-quality code reviews and engage in substantive discussions on software engineering best practices; Are excited about building new products and want to experience the journey of launching a fresh project within the Allegro ecosystem; Are open to developing soft skills and embracing a growth mindset through active participation in code reviews, pair programming, and team retrospectives.; Are open to incorporating AI coding assistants into their daily work to maximize efficiency and focus on complex problem-solving Can look for effective solutions to the requirements set by users; Want to constantly develop and update their knowledge; Know English at at least B2 level. What's in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Software Engineer role focused on building and scaling a Server-Driven UI platform using Kotlin and Spring, while expanding into a full-stack stack with TypeScript and React. The position involves developing backend microservices and modern web solutions, contributing to an AI-first platform that automates UI generation. The offer combines backend expertise with full-stack growth in a large-scale, cloud-native environment. 🗂️ Requirements: Strong experience in Kotlin, Experience with Spring framework, Experience building backend microservices, Willingness to develop in TypeScript and JavaScript, Experience or readiness to work with React, Understanding of backend architectures, Ability to design APIs and handle complex JSON structures, English level B2 or higher 📃 Skills: Kotlin, Spring, TypeScript, JavaScript, React, Microservices, REST, JSON, Kubernetes, Docker, Consul, GitHub, GitHubActions 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 14 200 - 20 200 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the Job Allegro is home to 1,700+ tech experts, but our team? We’re the ones building the backbone. We are part of the Core Platform, focusing on Server-Driven UI platform that allows our product teams to ship native experiences straight from the backend. We’re currently scaling Opbox Studio, our next-gen React-based stack. But we’re not just building another internal tool. We are pivoting to an Agentic AI-first approach. This means we’re leveraging specialized AI agents to automate UI generation and layout logic, effectively redefining how Developer Experience looks at scale. If you hate repetitive tasks, have a product-oriented mindset, and want to build infra that "thinks" for other developers – you’re in the right place. The Role We are looking for a Software Engineer with a strong background in Kotlin and backend solutions (Spring) who is also eager to grow and expand their skills into a full-stack role encompassing TypeScript/JS, React . We are a cross-competent, full-stack oriented team with diverse competencies, bridging the gap between backend microservices and modern web technologies. We are passionate about our internal users and work closely with various product teams. We are looking for people who: Are Polyglots at Heart: Have a strong background coding in Kotlin (and backend architectures) and are highly willing to work as a full-stack developer by actively learning and writing code in TypeScript, JavaScript, and React. Seek Impact : Expect work that has a deeper meaning and want to enjoy its results - specifically by building tools that directly accelerate the work of hundreds of other engineers. Value Craftsmanship: Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews. Are Problem Solvers: Can look for effective solutions that solve complex business and technical challenges (such as designing dynamic API contracts or handling complex JSON-based component tree structures). Are Life-long Learners: Want to constantly develop their knowledge, not only regarding backend software but also in the world of modern cross-platform rendering, Server-Driven UI, and applied Agentic AI. Communicate Effectively: Know English at a B2+ level. What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!

🏢 Summary: Software Engineer role focused on building and scaling a Server-Driven UI platform using Kotlin and Spring, with growth into full-stack development using TypeScript and React. The position involves developing backend microservices and AI-driven solutions that automate UI generation and enhance developer experience at scale. You will work on infrastructure powering native experiences and internal tools used by hundreds of engineers. 🗂️ Requirements: Strong experience in Kotlin, Experience with Spring framework, Experience in backend architectures and microservices, Willingness to develop in TypeScript and JavaScript, Experience or readiness to work with React, Ability to design and work with APIs and complex JSON structures, Understanding of distributed systems, English level B2 or higher 📃 Skills: Kotlin, Spring, TypeScript, JavaScript, React, Microservices, REST, JSON, Kubernetes, Docker, Consul, GitHub, GitHubActions, AI 🏢 Description: Important things for you: Flexible working hours in the hybrid model (4/1) - working hours start between 7:00 a.m. and 10:00 a.m. We also have 30 days of occasional remote work. The salary range for this position depending on the skill set is as follows (contract of employment, tax-deductible cost): PLN 14 600 - 20 825 Annual bonus based on your annual performance and company results. Our team is based in Warsaw. About the Job Allegro is home to 1,700+ tech experts, but our team? We’re the ones building the backbone. We are part of the Core Platform, focusing on Server-Driven UI platform that allows our product teams to ship native experiences straight from the backend. We’re currently scaling Opbox Studio, our next-gen React-based stack. But we’re not just building another internal tool. We are pivoting to an Agentic AI-first approach. This means we’re leveraging specialized AI agents to automate UI generation and layout logic, effectively redefining how Developer Experience looks at scale. If you hate repetitive tasks, have a product-oriented mindset, and want to build infra that "thinks" for other developers – you’re in the right place. The Role We are looking for a Software Engineer with a strong background in Kotlin and backend solutions (Spring) who is also eager to grow and expand their skills into a full-stack role encompassing TypeScript/JS, React . We are a cross-competent, full-stack oriented team with diverse competencies, bridging the gap between backend microservices and modern web technologies. We are passionate about our internal users and work closely with various product teams. We are looking for people who: Are Polyglots at Heart: Have a strong background coding in Kotlin (and backend architectures) and are highly willing to work as a full-stack developer by actively learning and writing code in TypeScript, JavaScript, and React. Seek Impact : Expect work that has a deeper meaning and want to enjoy its results - specifically by building tools that directly accelerate the work of hundreds of other engineers. Value Craftsmanship: Want to be proud of the code they create. They eagerly accept comments and share knowledge during code reviews. Are Problem Solvers: Can look for effective solutions that solve complex business and technical challenges (such as designing dynamic API contracts or handling complex JSON-based component tree structures). Are Life-long Learners: Want to constantly develop their knowledge, not only regarding backend software but also in the world of modern cross-platform rendering, Server-Driven UI, and applied Agentic AI. Communicate Effectively: Know English at a B2+ level. What’s in it for you: Well-located offices (with e.g. fully equipped kitchens, bicycle parking, terraces full of greenery) and excellent work tools (e.g., raised desks, ergonomic chairs, interactive conference rooms). A 16" or 14" MacBook Pro or corresponding Dell with Windows (if you don't like Macs) and all the necessary accessories. A wide selection of fringe benefits in a cafeteria plan - you choose what you like (e.g., medical, sports or lunch packages, insurance, purchase vouchers). English classes that we pay for related to the specific nature of your job. A training budget, inter-team tourism ( see more here ), hackathons, and an internal learning platform where you will find multiple trainings. An additional day off for volunteering, which you can use alone, with a team, or with a larger group of people connected by a common goal. Social events for Allegro people - Spin Kilometers, Family Day, Fat Thursday, Advent of Code, and many other occasions we enjoy. And that's just the beginning! You can read more about the benefits here . #goodtobehere means that: You will join a team you can count on - we work with top-class specialists who have knowledge- and experience-sharing in their DNA. You will love our level of autonomy in team organization, the space for continuous development, and the opportunity to try new things. You get to choose which technology solves the problem and you are responsible for what you create. You will value our Developer Experience and the full platform of tools and technologies that make creating software easier. We rely on an internal ecosystem based on self-service and widely used tools such as Kubernetes, Docker, Consul, GitHub, and GitHub Actions. Thanks to this, you can contribute to Allegro from your very first days on the job. You will be equipped with modern AI tools to automate repetitive tasks, allowing you to focus on developing new services and refining existing ones (also leveraging AI support). You will create solutions that will be used (and loved!) by your friends, family and millions of our customers. You will meet the Allegro Scale , which starts with over 1000 microservices, an open-source data bus (Hermes) with 300K+ rps, a Service Mesh with 1M+ rps, tens of petabytes of data, and production-used machine learning. You will become part of Allegro Tech - We speak at industry conferences, cooperate with tech communities, run our own blog (it's been over 10 years!), record podcasts, lead guilds, and we organize our own internal conference - the Allegro Tech Meeting. We create solutions we love (and can) to talk about! Send us your CV and… see you at Allegro!