(Senior) Fullstack Engineer (Java+Angular) (m/f/n)

🏢 Summary: Senior Fullstack Engineer role focused on building scalable Angular and TypeScript web applications, owning UI architecture, and contributing to Node.js integrations and AWS-based solutions. The offer includes hybrid work, a B2B rate of 18–21k PLN, benefits budget, and professional development opportunities. 🗂️ Requirements: Frontend or server-side JavaScript expertise, Full-stack development with TypeScript, Angular, Node.js, HTML and CSS, AWS cloud-services experience, Serverless and microservices architecture experience, CI/CD pipeline development experience, Source control, branching, merging and deployment knowledge, Public-facing application security, data governance and technology-risk management, System-outage diagnosis and root-cause analysis, Business-level written and spoken English, Office availability twice weekly in Łódź, Warszawa, Poznań, Kraków or Wrocław, Availability to start by the beginning of September 📃 Skills: JavaScript, TypeScript, Angular, Node.js, HTML, CSS, AWS, DynamoDB, CloudFront, Redis, S3, Postgres, Elasticsearch, Serverless, Microservices, CI/CD, GitLab, Bitbucket, Jenkins 🏢 Description: 🌍 Hello World! We are The Codest -  International Tech Software Company with tech hubs in Poland delivering global IT solutions and projects. Our core values lie in “Customers and People First” approach that prioritises the needs of our customers and a collaborative environment for our employees, enabling us to deliver exceptional products and services. Our expertise centers on web development, cloud engineering, DevOps and quality.  After many years of developing our own product - Yieldbird, which was honored as a laureate of the prestigious Top25 Deloitte awards, we arrived at our mission: to help tech companies build impactful product and scale their IT teams through boosting IT delivery performance. Through our extensive experience with product development challenges, we have become experts in building digital products and scaling IT teams. But our journey does not end here - we want to continue our growth. If you’re goal-driven and looking for new opportunities, join our team! What awaits you is an enriching and collaborative environment that fosters your growth at every step. 💡Project Description: We are looking for a Senior Fullstack Engineer (Angular+Node.js) to design, develop, and evolve modern web applications using Angular and TypeScript. The role is strongly backend-focused, with ownership of UI architecture, while contributing to full-stack integrations and cloud-native solutions on AWS. Job requirements 📈 Your Responsibilities: Develop and maintain scalable, high-performance web applications using Angular and TypeScript. Design reusable, modular UI components and drive consistent, high-quality user experience standards. Collaborate closely with product, UX, and backend teams to deliver end-to-end features. Integrate with backend services and APIs, contributing to full-stack solutions where needed. Support deployment, monitoring, and continuous improvement of applications running on AWS. Ensure application performance, security, and reliability through best engineering practices. Conduct code reviews, enforce standards, and mentor junior team members. Actively contribute to architecture decisions and frontend best practices. 🔑 Key Requirements: Proven expertise in either front end or server-side JavaScript web development. Proficient in full stack modern web development (Typescript, Angular, node.js, HTML, CSS) Expertise in cloud computing preferably with AWS (Amazon Web Services) services (Dynamo DB, CloudFront, Redis, S3, Postgres, ElasticSearch, amongst others) Experience developing serverless and micro service architectures Ability to work with and develop CICD pipelines (knowledge of GitLab, BitBucket, Jenkins preferred) Understanding of software development best practices including source control, branching strategies, merging, software deployment. Experience managing technology risk, data governance and security for public facing web applications Ability to diagnose, resolve and perform root cause analysis of system outages. Business level proficiency in the English language – written and verbal. Availability to start no later than the beginning of September 📜Our Promise (what you can expect from us): 18-21k PLN on B2B Fully remote work A unique opportunity to take your career to the next level - we’re looking for people who want to create an impact. You have ideas, we want to hear them! 📌Recruitment process: 30 minute screening call online with our recruiter, Justyna 1h technical interview 1h client interview Offer Questions, insights? Feel free to reach out to our recruiting team: justyna.pazdalska@thecodest.co In the meantime, feel free to visit our website where you can find key facts about us.

🏢 Summary: Backend engineering role on a logistics mobile team, building high-availability, scalable services that support delivery operations and mobile workers. The position offers end-to-end ownership of C#/.NET services, from design through deployment, in a hybrid work model with a PLN 14,600–20,825 salary range and annual bonus. 🗂️ Requirements: C# proficiency, Experience with .NET Core and ASP.NET, Experience building high-performance backend services, Experience designing scalable REST APIs, Experience with relational databases and SQL, Experience with PostgreSQL and Entity Framework, Experience with Docker and Kubernetes, Experience with Azure Service Bus or another message broker, Experience using Redis for caching and performance tuning, Full software development lifecycle ownership, English proficiency at B2 level or higher 📃 Skills: C#, .NET, ASP.NET, REST, PostgreSQL, SQL, EntityFramework, Docker, Kubernetes, Azure, Redis, SOAP, WCF, Consul, GitHub 🏢 Description: Software Engineer 2 (.NET/C#) - Logistics team Location: Warszawa, PL, 00-841 Company: Opennet.pl Sp. z o.o. Team: Technology Contract Type: Employee About the job: We are part of Allegro and we are specialists in providing advanced IT systems for logistics management Massive Scale : Design and build high-availability systems used by tens of thousands of users. This is high-performance engineering in practice. Modern Tech Stack : Work with a world-class environment using C#, .NET Core, ASP.NET , REST, PostgreSQL, Azure, Docker, Kubernetes, EntityFramework, and Redis. 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 the services you create, from design to deployment. Complex Challenges : You will tackle complex backend problems, using technology to solve real-world business challenges. Join the logistics’ mobile team! You will have a chance to accelerate Allegro’s One logistics operations through mobile apps serving all various groups of workers: from couriers, warehousemen, truck drivers up to APMs’ installers and servicemen. You will have a chance to build the systems powering our logistics infrastructure. Your team works to streamline the critical operations that power the final stages of our delivery network. We prioritize high performance and a great team atmosphere. We are currently evolving our engineering practices, and this role is an excellent opportunity to actively contribute to the backend team’s growth. 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. We are looking for people who: Are proficient in C# and .NET Core / ASP.NET , with experience in building high-performance backend services; Have solid experience in designing scalable REST APIs ; Have solid experience with RDBMS (e.g., PostgreSQL) and ORM tools like Entity Framework ; experience with other relational databases is also highly valued, as SQL knowledge is key; Are comfortable working in a cloud-native environment with Docker, and Kubernetes ; Have experience working with Azure Service Bus or other message broker systems, to handle asynchronous communication; Know how to utilize Redis for efficient caching and performance tuning; Have an understanding of the challenges backend systems face when supporting mobile applications, as your work will be critical for our mobile platform (an additional advantage); Are eager to actively contribute to our backend team's growth by helping us shape and refine our engineering best practices; Take full ownership of your code – you enjoy being involved in the full software development lifecycle; Are excited to join a growing team where they can influence the technical vision and help shape new projects from the ground up within the ecosystem; You have a pragmatic approach to legacy components (e.g., SOAP/WCF ); you are comfortable with them when necessary, though this accounts for only a minor portion of your daily work. 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" Dell with Windows 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: Senior Full-stack Developer role focused on building Node.js microservices and REST APIs, contributing to Angular front ends, and modernizing legacy platforms into scalable AWS cloud-native solutions. The position owns the full delivery lifecycle, provides technical leadership and mentoring, and requires hybrid work from Gdansk or Krakow three days per week. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of professional software development experience, Leadership experience building production-grade systems, Expertise in Node.js, microservices, REST API design, and full-stack development, Angular development experience, Legacy-system modernization and target-state architecture design experience, Hands-on AWS cloud services experience, Relational and NoSQL database experience, Monitoring, observability, and automated testing experience, Agile delivery experience, Hybrid work from Gdansk or Krakow 3 days per week 📃 Skills: Node.js, Angular, Java, JavaScript, AWS, EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, PostgreSQL, Splunk, Honeycomb, Playwright, DB2, REST, Microservices 🏢 Description: We're looking for a Senior Full-stack Developer (Node.js, Angular, Java, JavaScript) to join our team in Poland. The ideal candidate thrives on solving complex problems, modernizing legacy platforms, and delivering robust cloud-native solutions. In this role, you’ll be hands-on with the full technology stack—shaping architecture, leading development efforts, and partnering closely with cross-functional teams to drive strategic initiatives forward. If you are an engineer who enjoys both the technical and collaborative aspects of building software at scale, we’d love to meet you. Please note that hybrid work, 3 days from Gdansk or Krakow, is required. Responsibilities Design, develop, and deploy backend services, microservices, and RESTful APIs—primarily in Node.js—with front-end contributions in Angular Modernize legacy systems by evaluating current-state architectures and defining target-state solutions that maximize performance, scalability, and maintainability Deliver high-quality software in an agile environment, partnering closely with product managers, architects, and other engineering teams Own the end-to-end development lifecycle: requirements gathering, solution design, coding, testing (including API and Playwright automation), deployment, and operational support Implement and manage AWS cloud services (e.g., EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch) to build resilient, observable, and secure solutions Promote best practices in coding standards, testing, monitoring (via Splunk, Honeycomb), and documentation Mentor and guide engineers, fostering a culture of technical excellence, ownership, and continuous improvement Engage directly with clients and stakeholders, translating broad, ambiguous business needs into concrete technical plans Requirements Bachelor's degree in Computer Science, Engineering, or related field; Master's degree strongly preferred 5+ years of professional software development experience, with demonstrated leadership in building production-grade systems Deep expertise in Node.js, microservices architecture, REST API design, and full-stack development (Angular contributing to ~20% of workload) Proven success modernizing legacy systems, assessing current architectures, and defining target-state designs Hands-on experience with AWS cloud services (EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, and related tools) Experience with relational and NoSQL databases (DynamoDB, PostgreSQL); familiarity with DB2 is a plus Proficiency using modern monitoring and observability platforms (Splunk, Honeycomb) and automated testing frameworks (API testing tools, Playwright) Strong command of agile methodologies and iterative delivery Nice to have Exposure to Java for DB2 integration and legacy system interfacing Experience leading cross-functional initiatives in large enterprise environments Familiarity with API management, security, and governance best practices Experience with Playwright We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Senior Full-stack Developer role focused on designing and modernizing cloud-native applications with Node.js and Angular. The position owns the full delivery lifecycle, including architecture, AWS implementation, automated testing, and operational support, while collaborating with clients and mentoring engineers. Hybrid work from Gdansk or Krakow three days per week is required. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering, or related field, 5+ years of professional software development experience, Leadership experience building production-grade systems, Deep Node.js expertise, Microservices architecture experience, REST API design experience, Full-stack development experience with Angular, Legacy-system modernization and target-state architecture design experience, Hands-on AWS services experience, Relational and NoSQL database experience, Monitoring, observability, and automated testing experience, Agile delivery proficiency, Hybrid work from Gdansk or Krakow 3 days per week 📃 Skills: Node.js, Angular, Java, JavaScript, AWS, EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, PostgreSQL, Splunk, Honeycomb, Playwright, DB2 🏢 Description: We're looking for a Senior Full-stack Developer (Node.js, Angular, Java, JavaScript) to join our team in Poland. The ideal candidate thrives on solving complex problems, modernizing legacy platforms, and delivering robust cloud-native solutions. In this role, you’ll be hands-on with the full technology stack—shaping architecture, leading development efforts, and partnering closely with cross-functional teams to drive strategic initiatives forward. If you are an engineer who enjoys both the technical and collaborative aspects of building software at scale, we’d love to meet you. Please note that hybrid work, 3 days from Gdansk or Krakow, is required. Responsibilities Design, develop, and deploy backend services, microservices, and RESTful APIs—primarily in Node.js—with front-end contributions in Angular Modernize legacy systems by evaluating current-state architectures and defining target-state solutions that maximize performance, scalability, and maintainability Deliver high-quality software in an agile environment, partnering closely with product managers, architects, and other engineering teams Own the end-to-end development lifecycle: requirements gathering, solution design, coding, testing (including API and Playwright automation), deployment, and operational support Implement and manage AWS cloud services (e.g., EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch) to build resilient, observable, and secure solutions Promote best practices in coding standards, testing, monitoring (via Splunk, Honeycomb), and documentation Mentor and guide engineers, fostering a culture of technical excellence, ownership, and continuous improvement Engage directly with clients and stakeholders, translating broad, ambiguous business needs into concrete technical plans Requirements Bachelor's degree in Computer Science, Engineering, or related field; Master's degree strongly preferred 5+ years of professional software development experience, with demonstrated leadership in building production-grade systems Deep expertise in Node.js, microservices architecture, REST API design, and full-stack development (Angular contributing to ~20% of workload) Proven success modernizing legacy systems, assessing current architectures, and defining target-state designs Hands-on experience with AWS cloud services (EC2, S3, Lambda, Kinesis, Firehose, DynamoDB, EKS, CloudWatch, and related tools) Experience with relational and NoSQL databases (DynamoDB, PostgreSQL); familiarity with DB2 is a plus Proficiency using modern monitoring and observability platforms (Splunk, Honeycomb) and automated testing frameworks (API testing tools, Playwright) Strong command of agile methodologies and iterative delivery Nice to have Exposure to Java for DB2 integration and legacy system interfacing Experience leading cross-functional initiatives in large enterprise environments Familiarity with API management, security, and governance best practices Experience with Playwright We offer We gather like-minded people: Top tech minds driving innovation in AI, cloud and digital platform modernization Supportive team and agile, startup-like culture Hybrid by design mode and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Career development programs Thought leadership, mentoring, soft skills and well-being programs Certification (Anthropic, Gemini, GCP, Azure, AWS) English classes We cover it all: Stable pay Participation in the Employee Stock Purchase Plan with a 15% discount Benefits package (health insurance, multisport, shopping vouchers) Referral bonuses up to $2,000 Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and more Corporate, social and well-being events Please, note: Benefits listed above are available to employees only We are open for working with Contractors. Terms of B2B cooperation agreements are agreed individually We will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.

🏢 Summary: Lead a hands-on full-stack/backend engineering effort to build scalable services, APIs, workflow engines, and agentic AI systems for logistics optimization. The role combines technical leadership, production reliability, third-party integrations, and mentoring while delivering AI-driven planning and optimization capabilities. 🗂️ Requirements: Senior or technical-lead backend engineering experience, Strong Python and API-development proficiency, Scalable distributed-systems architecture experience, API design, data modeling, and integration expertise, Agentic AI, LLM orchestration, RAG, or multi-agent systems experience, Cloud-platform and CI/CD experience, Third-party API integration experience, Production debugging experience with LLM-driven systems, Engineering mentorship and code/design review experience, Technical leadership and stakeholder communication skills, Successful pre-employment screening 📃 Skills: Python, FastAPI, TypeScript, LangGraph, LangChain, RAG, AWS, Bedrock, GitLab, CICD, SSE, WebSockets, LLM 🏢 Description: What's the role? We are looking for a Tech Lead Fullstack Engineer to build core backend systems powering next-generation agentic AI solutions for the logistics industry. The systems developed by this team optimize deliveries at scale improving driver efficiency, increasing reliability, reducing operational costs, and lowering environmental impact. In this role, you will focus on building the core service layer, customer-facing APIs, workflow engines, and integrations with HERE APIs and third-party systems that enable intelligent logistics workflows. You will work closely with senior engineers and technical leaders to design and implement scalable, reliable systems that support AI-driven planning and optimization use cases. This is a hands-on engineering role with a strong focus on backend development, system reliability, and production-quality delivery . What You’ll Do: Lead the design, build, and maintenance of core backend services, APIs, and workflow orchestration systems for logistics applications Drive integrations with HERE APIs and external third-party systems to support real-world logistics workflows Translate ambiguous product and technical requirements into scalable, maintainable system components, and help others on the team do the same Write clean, efficient, and well-tested code in Python and/or TypeScript, setting the standard for code quality across the team Design and build agentic AI systems based on LangGraph, and help shape how the team approaches LLM orchestration and multi-agent architecture Lead system design discussions and own key architectural decisions, ensuring solutions align with the overall system vision Build and maintain customer-facing APIs with a strong focus on usability, performance, and reliability Ensure high-quality delivery through testing, monitoring, and debugging in production environments, including systems with non-deterministic (LLM-driven) behavior Mentor engineers through code review, design feedback, and pairing, and help grow the team's technical capabilities Collaborate with engineers, product managers, and domain experts to deliver end-to-end features Continuously improve system performance, scalability, and operational efficiency Leverage AI-assisted development tools to improve development speed and code quality Who are you? What We’re Looking For: Proven experience as a technical lead or in a senior engineering role, with strong backend development skills and a track record of owning systems end-to-end Strong proficiency in Python, with experience building APIs (FastAPI or similar) and backend systems; TypeScript is a plus Experience architecting scalable services and distributed systems, and making tradeoff decisions that hold up under real-world load and change Strong command of API design, data modeling, and system integration patterns — ideally including streaming/event-driven APIs (e.g., SSE, websockets), not just request/response Hands-on experience building or leading development of agentic AI systems: LLM orchestration frameworks (e.g., LangGraph, LangChain), RAG pipelines, or multi-agent architectures Experience working with cloud platforms, ideally AWS (including managed LLM services like Bedrock), and modern CI/CD practices (GitLab CI or equivalent) Experience integrating with external/third-party APIs and handling real-world data and system constraints in production Strong debugging and problem-solving skills in production environments, including systems with non-deterministic (LLM-driven) components Experience mentoring engineers, conducting code/design reviews, and raising the technical bar across a team Ability to break down ambiguous problems into well-defined work, balancing hands-on coding with technical leadership Excellent communication skills, with the ability to align engineering decisions with product and business priorities, and a pragmatic approach to engineering challengesWe are looking for a Lead Software Engineer to build core backend systems powering next-generation agentic AI solutions for the logistics industry. The systems developed by this team optimize deliveries at scale improving driver efficiency, increasing reliability, reducing operational costs, and lowering environmental impact.Design , build, and maintain What We Offer: The opportunity to tackle meaningful and challenging problems A chance to continuously learn and stay on top of the latest technology trends Work that has real-world impact, shaping the future of mobility and technology Regular feedback to help you grow and succeed in your role A collaborative and supportive team environment where your contributions are valued Competitive salary plus bonus Flexible working hours and a hybrid working environment Medical coverage for you and your family This role is eligible for Creative Tax Incentive scheme in Poland” or KUP (Autorskie Koszty Uzyskania Przychodu) Option to work on a B2B contract (please note: benefits, bonus and KUP do not apply in this case) Change is HERE. Apply Now! #LI-AK8   #LI-HYBRID Life at HERE in Poland comes with a competitive total rewards package designed to support your health, wellbeing, and performance. This includes a base salary, a Short-Term Incentive (STI) bonus (percentage based on role), a creative tax advantage for eligible positions, private medical care (including dental), life insurance, a meal allowance, vision reimbursement, a remote work allowance (if applicable), access to MyBenefit and Multisport programs, and various wellbeing initiatives. Paid time off, sick leave, and parental leave are provided in accordance with the Polish Labor Code. As part of HERE Technologies employment process, candidates will be required to successfully complete a pre-employment screening process. This offer and any related claims are subject to the successful completion of a pre-employment screening. This will involve employment, education, and criminal verification if applicable. HERE is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, age, gender identity, sexual orientation, marital status, parental status, religion, sex, national origin, disability, veteran status, and other legally protected characteristics. Who are we? HERE Technologies is a location data and technology platform company. We empower our customers to achieve better outcomes – from helping a city manage its infrastructure or a business optimize its assets to guiding drivers to their destination safely. At HERE we take it upon ourselves to be the change we wish to see. We create solutions that fuel innovation, provide opportunity and foster inclusion to improve people’s lives. If you are inspired by an open world and driven to create positive change, join us. Learn more about us on our YouTube Channel. Apply for this job online Email this job to a friend Share on your newsfeed Connect With Us! Not ready to apply? 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🏢 Summary: Join a cross-functional product team to build and operate scalable, high-throughput Java backend solutions for eCommerce core processes. The role combines hands-on architecture, quality ownership and product discovery, with daily use of AI-assisted and agentic coding workflows. 🗂️ Requirements: Java 21+ backend experience, Reactive or asynchronous programming experience, Virtual threads experience, Distributed backend systems experience, Event-driven messaging experience, CI/CD and automated testing experience, Code review and observability experience, AI coding tools and agentic workflow experience, Product-oriented cross-functional collaboration 📃 Skills: Java, Vert.x, Reactor, Kafka, CI/CD, DDD, SOLID, Claude, Copilot, Scrum, Kanban 🏢 Description: We are one of Switzerland's leading online shops in both B2C and B2B - a combination that is nearly unique in Europe. Behind it stands one of the most modern logistics operations on the continent: highly automated, scalable and with further growth potential. Here you do more than build software. You bring your personality, actively shape the department and help define the eCommerce of tomorrow. The role Join a cross-functional product team and build scalable solutions with real impact for our customers and core business processes. You bring curiosity, team spirit and a genuine appetite for learning - and you take part in shaping not just the implementation, but the architecture, quality standards and the question of what should be built in the first place. What to expect A collaborative cross-functional product team with a hands-on Team Lead, a Product Manager and several T-shaped Full-Stack Engineers who share ownership together. You work in Scrum or Kanban depending on what fits the team. Engineers roll up their sleeves in refinement and actively contribute to architecture and product decisions - not just implementation. Plenty of room to shape high code quality within your team and across team boundaries. Enough legacy, complexity and grown structures to give you real opportunities to make things meaningfully better - one step at a time. What you bring We are a good match if you: Java & Backend Depth Bring deep, hands-on experience with Java 21+ - including modern language features such as records, sealed classes, pattern matching and structured concurrency Have practical experience with reactive or asynchronous programming models - with Vert.x, Project Reactor or comparable toolkits; you understand the non-blocking programming model and know when to apply it Have worked with Java virtual threads (Project Loom) and understand how they change concurrency models in practice - not just in theory Have built and operated distributed backend systems at scale - ideally in eCommerce or comparable high-throughput domains Are comfortable with event-driven communication patterns (Kafka, messaging systems) and understand the trade-offs between synchronous and asynchronous approaches Engineering Practices Have lived modern engineering practices in your daily work: CI/CD, automated testing, decoupling, code reviews and observability See concepts like DDD, Clean Architecture, Event-Driven Architecture, SOLID, feature flags and dependency injection as practical tools - not buzzwords - and apply them with pragmatism and judgement Are a strong advocate of "you build it, you own it" and have experience in environments that release multiple times per day Guide the team on code quality and meaningful testing practices - not coverage as a goal in itself, but tests that catch real bugs AI / Agentic Coding - a core expectation, not a nice-to-have Use AI coding tools - such as Claude Code or GitHub Copilot - as a natural part of your daily workflow for code generation, test writing, refactoring and documentation Go beyond autocomplete: you actively explore agentic workflows such as automated PR review, scaffolding, and multi-step code generation - and you evaluate their output critically before committing Understand the risks: you know that AI-generated code can accelerate technical debt and erode understanding if not reviewed carefully, and you enforce review standards accordingly Help introduce and shape AI tooling adoption within the team - sharing what works, what does not and where the limits are Collaboration & Product Mindset Enjoy sharing knowledge through pair programming, whiteboard sessions and code reviews - and actively help raise the engineering level of the team Like working closely with Product Managers and genuinely want to understand the problem being solved - you help shape requirements and think from a user and business perspective Value real agility: short iterations, fast learning, active feedback loops and data-informed decisions Are a warm communicator who values an open learning culture, builds personal connections within the team and does not take themselves too seriously We are probably not a good match if you: Prefer frameworks like SAFe or projects that start with a fixed requirements document Have worked primarily in heavily regulated environments without experience in a fast-moving, product-oriented setup with distributed systems Are most comfortable in models where infrastructure, backend, frontend, testing and product thinking are kept strictly separate Prefer to receive requirements fully formed rather than shaping them together with Product Management See AI tools as a threat or a gimmick rather than a genuine productivity multiplier worth mastering See ongoing learning primarily as the employer's responsibility rather than your own intrinsic motivation Are more frustrated than energised by imperfect systems - spoiler: we are not there yet Keep work and good humour strictly apart

🏢 Summary: Join the Integrations & Automations team to build AI agent tooling, APIs, and data pipelines connecting a 3D platform with enterprise systems. The role also supports external developers through API expertise, documentation, and automation tools, with structured mentorship and increasing ownership. 🗂️ Requirements: TypeScript/JavaScript or Python fundamentals, Willingness to work with TypeScript and Python, Use of AI coding assistants, HTTP/REST API knowledge, Git and code-review workflow experience, Written and spoken English (B2/C1+), Computer Science/Engineering degree or equivalent practical experience 📃 Skills: TypeScript, JavaScript, Python, Node.js, HTTP, REST, JSON, Git, MCP, Claude, Codex 🏢 Description: Location: Kraków, Poland (Hybrid) Experience Level: Junior / Mid Employment Type: Permanent Contract About our Client Our client is an international pioneer in 3D digital solutions and AI technology built for the fashion and apparel industry. Their software transforms how global fashion brands design, develop, and merchandise garments, significantly accelerating product lifecycles and reducing physical sampling through true-to-life 3D visualization. About the Role As a Software Engineer in the Integrations & Automations team, you will work at the intersection of AI infrastructure and core 3D platform technology. The role balances two primary responsibilities: Engineering: Building APIs, AI agent tooling, and custom data pipelines to connect the platform with enterprise customer systems. Developer Enablement: Serving as a technical subject matter expert for external developers and partners using open APIs and integrations. This is a growth-oriented role designed for engineers with strong fundamentals and curiosity. You will be paired with senior engineers from day one, starting on well-defined tasks and taking on greater ownership as you advance. Technologies: TypeScript / Node.js, Python, REST APIs, MCP / LLM Agent Tooling Language Requirements: English (B2/C1+) What You’ll Do Build Develop and expand AI agent tooling using Model Context Protocol (MCP) to enable LLMs to interact directly with platform products. Enhance Python plugin and scripting APIs to automate workflows for clients and partners. Build custom data integration pipelines in collaboration with Customer Success teams and enterprise clients. Write and maintain automated test suites to ensure high system reliability and integration quality. Support & Enable Act as the technical expert for open APIs, answering developer queries regarding endpoints, parameters, expected outputs, and code samples. Own and maintain accurate open API documentation across all platform releases. Build internal AI-assisted tools (e.g., using LLMs) to streamline support ticketing, draft responses, and automate status updates. Requirements (Must Have) Solid programming fundamentals in TypeScript/JavaScript or Python, with a willingness to work in both. Active use of, or eagerness to adopt, AI coding assistants (such as Claude Code or Codex) as part of your daily workflow. Solid understanding of HTTP/REST API concepts (requests, responses, status codes, JSON). Comfort with Git and collaborative code-review workflows. Clear written and spoken English for direct communication across teams and with external developers. Bachelor’s degree in Computer Science/Engineering or equivalent practical experience (bootcamp, internships, side projects). Nice to Have Hands-on experience with both TypeScript and Python. Practical exposure to LLM agents, MCP tools, or AI developer infrastructure. Basic exposure to C++ (sufficient to read existing code and write API wrappers). Familiarity with gRPC, message queues (RabbitMQ), MongoDB/Redis, or Docker. Experience building or consuming APIs, SDKs, plugins, or writing developer documentation. Familiarity with 3D, CAD, or fashion-tech data formats. What our Client Offers Mentorship: Structured pairing with senior engineers from day one. Modern Tech Stack: Broad exposure across an AI-powered product platform combining LLM technology with 3D graphics. Impact: Direct impact on developer tooling used globally by top brands and partners.