Senior Software Engineer (Java)

🏢 Summary: Senior Fullstack Software Engineer role focused on building and deploying cloud-based systems using modern software craftsmanship practices and AI-assisted development tools. The position involves end-to-end software delivery, clean architecture, code reviews, testing, and improving delivery processes in a remote-first senior engineering team. 🗂️ Requirements: 5+ years of professional experience with Java or Kotlin, 3+ years of professional experience with JavaScript or TypeScript, Hands-on experience with SQL and NoSQL, Experience with AWS, GCP, or Azure, Experience with AI-assisted software development, Strong teamwork and collaboration skills 📃 Skills: Java, Kotlin, JavaScript, TypeScript, SQL, NoSQL, AWS, GCP, Azure, Microservices, TDD, BDD, DDD, Claude 🏢 Description: We are looking for a Senior Fullstack Software Engineer who is hungry to deliver quality software at pace, by utilising the latest technology trends and modern Software Craftsmanship techniques. Who are we ? We are a remote-first boutique software house company founded by a group of seasoned software experts (average experience in the team is 12 years). What connected all of us, despite a long-term relationship, is a passion for building Great Software that matters. We believe in people, so this is why the key values of Shaped Thoughts are autonomy and trust. Our people have a real and direct impact on what and how we build things. We put extra effort into ensuring everyone can make a difference and grow among other experts. Qualifications: 5+ years of professional experience with Java or/and Kotlin 3+ years of professional experience with JavaScript or/and TypeScript Hands-on experience with SQL and NoSQL Experience with cloud platforms (AWS / GCP / Azure) AI-assisted software development experience Nice to have: Microservices experience Understanding of distributed systems and event-driven architectures TDD, BDD practitioner Domain-Driven Design knowledge As a part of the team you will : Design, implement, code review, test and deploy cloud-based systems Develop software from start to finish - you ship it, you run it! Deliver quality technical solutions that come from a robust design and clean architecture Build & improve the software delivery process using tools such as Claude Code How do we work? We work as a team - all people can freely exchange knowledge and tasks, that’s why we’re looking for strong team players We believe in continuous improvement (Kaizen mindset) We’re happy to share knowledge and spend time learning our domain and new technologies We value asynchronous communication for work, however we meet in person to improve our personal relationships What do we offer ? Being a part of a strong senior team with an ability to learn and exchange knowledge Remote-first work environment B2B rate 140-190 PLN / hour, depending on your level of expertise Open-ended B2B contract or contract of employment Recruitment process It consists of the following stages: CV screening Tech screening (45 min) Live coding session (1h) Architecture task (1h) At least one of the stages must be completed on-site in one of the major cities: Wrocław, Poznań, Katowice, Kraków, Warszawa or Gdańsk. We actively encourage AI-assisted development in our daily work. However, during recruitment, we want to assess your individual skills - please don't use AI assistance unless explicitly permitted for a given stage.

🏢 Summary: Fullstack Software Engineer role focused on designing, building, testing, and deploying cloud-based systems using modern software craftsmanship practices. The position involves end-to-end ownership of software delivery in a remote-first environment, leveraging AI-assisted development and clean architecture principles. You will work with a senior team to deliver scalable, high-quality solutions. 🗂️ Requirements: 3+ years experience with Java or Kotlin, 2+ years experience with JavaScript or TypeScript, Hands-on experience with SQL and NoSQL, Experience with AWS, GCP, or Azure, Experience with AI-assisted software development, Ability to design and deploy cloud-based systems, Experience with code reviews and automated testing 📃 Skills: Java, Kotlin, JavaScript, TypeScript, SQL, NoSQL, AWS, GCP, Azure, Microservices, DistributedSystems, EventDrivenArchitecture, TDD, BDD, DDD, Claude, Codex 🏢 Description: We are looking for a Fullstack Software Engineer who is hungry to deliver quality software at pace, by utilising the latest technology trends and modern Software Craftsmanship techniques, as well as learn the craft from a senior Team. Who are we ? We are a remote-first boutique software house company formed by a group of seasoned software experts (average experience in the team is 12 years). What connected all of us, despite a long-term relationship, is a passion for building Great Software that matters. We believe in people, so this is why the key values of Shaped Thoughts are autonomy and trust. Our people have a real and direct impact on what and how we build things. We put extra effort into ensuring everyone can make a difference and grow among other experts. Qualifications: 3+ years of professional experience with Java or/and Kotlin 2+ years of professional experience with JavaScript or/and TypeScript Hands-on experience with SQL and NoSQL Experience with cloud platforms (AWS / GCP / Azure) AI-assisted software development experience Nice to have: Microservices experience Understanding of distributed systems and event-driven architectures TDD, BDD practitioner Domain Driven Design knowledge As a part of the team you will : Design, implement, code review, test and deploy a cloud-based systems Develop software from start to finish - you ship it, you run it! Deliver quality technical solutions that come from a robust design and clean architecture Build & improve software delivery process using the latest tools such as Claude Code or Codex How do we work? We work as a team - all people can freely exchange knowledge and tasks, that’s why we’re looking for strong team players We believe in continuous improvement (Kaizen mindset) We’re happy to share knowledge and spend time learning our domain and new technologies We value asynchronous communication for work, however we meet in person to improve our personal relationships What do we offer ? Being a part of a strong senior team with the ability to learn and exchange knowledge Remote first work environment B2B rate 130-160 PLN / hour dependent on your level of expertise Open bounded B2B contract or contract of employment Recruitment process It consists of the following stages: CV screening Tech screening (45 min) Live coding session (1h) Architecture task (1h) At least one of the stages must be completed on-site in one of the major cities: Wrocław, Poznań, Katowice, Kraków, Warszawa or Gdańsk. We actively encourage AI-assisted development in our daily work. However, during recruitment we want to assess your individual skills - please don't use AI assistance unless explicitly permitted for a given stage.

🏢 Summary: Senior Frontend Software Engineer role focused on building and delivering cloud-based software using modern JavaScript technologies, React, and Software Craftsmanship practices in a remote-first environment. The position involves end-to-end software development, collaboration with international teams, and working with distributed systems and cloud platforms. Candidates will contribute to scalable solutions while leveraging AI-assisted development tools and clean architecture principles. 🗂️ Requirements: 5+ years of professional experience with JavaScript, Experience with Modern JavaScript, Experience with TypeScript, Experience with React, Experience with RxJS, Experience with Node, Experience with Mocha, Experience with Express, Experience with Enzyme, Understanding of distributed systems, Understanding of microservices, Understanding of event-driven architectures, Experience with cloud platforms, AI-assisted software development experience, Ability to design, test, deploy, and maintain cloud-based systems 📃 Skills: JavaScript, TypeScript, React, RxJS, Node, Mocha, Express, Enzyme, AWS, GCP, Azure, Microservices, Cloud, Claude 🏢 Description: We are looking for a Senior Frontend Software Engineer who is hungry to deliver quality software at pace, by utilising the latest technology trends and modern Software Craftsmanship techniques. Who are we ? We are a remote-first boutique software house company founded by a group of seasoned software experts (average experience in the team is 12 years). What connected all of us, despite a long-term relationship, is a passion for building Great Software that matters. We believe in people, so this is why the key values of Shaped Thoughts are autonomy and trust. Our people have a real and direct impact on what and how we build things. We put extra effort into ensuring everyone can make a difference and grow among other experts. Qualifications: Modern JS, TypeScript, React, RxJS, Node, Mocha, Express, Enzyme 5+ years of professional experience with JavaScript Understanding of distributed systems, microservices, and event-driven architectures Experience with cloud platforms (AWS / GCP / Azure) AI-assisted software development experience As a part of the team you will : Design, implement, code review, test and deploy cloud-based systems Develop software from start to finish - you ship it, you run it! Collaborate with other international teams on paving the way for a successful delivery Work closely with senior stakeholders on identifying business requirements and shaping the product Deliver quality technical solutions that come from a robust design and clean architecture Build & improve the software delivery process using tools such as Claude Code How do we work? We work as a team - all people can freely exchange knowledge and tasks, that’s why we’re looking for strong team players We believe in continuous improvement (Kaizen mindset) We’re happy to share knowledge and spend time learning our domain and new technologies We value asynchronous communication for work, however we meet in person to improve our personal relationships What do we offer ? Being a part of a strong senior team with an ability to learn and exchange knowledge Remote-first work environment (or you can work from our office in Wroclaw if you fancy :-) B2B rate 140-190 PLN / hour, depending on your level of expertise Open-ended B2B contract or contract of employment Recruitment process It consists of the following stages: CV screening Tech screening (45 min) Live coding session (1.15h) The last stage is F2F and requires on-site presence in one of the major cities: Wrocław, Poznań, Katowice, Kraków, Warszawa or Gdańsk. We actively encourage AI-assisted development in our daily work. However, during recruitment, we want to assess your individual skills - please don't use AI assistance unless explicitly permitted for a given stage.

🏢 Summary: Senior Java Full-Stack Engineer role focused on designing and evolving scalable cloud-based products using Java and modern frontend technologies. The position involves building robust backend services, contributing to architecture decisions, and working with cloud-native deployments in a remote B2B setup. It requires strong independence and experience delivering high-quality, production-grade systems. 🗂️ Requirements: Senior-level software engineering experience, Strong hands-on experience with Java, Backend development expertise, Full-stack development experience, Experience with modern frontend frameworks, Understanding of cloud platforms, Experience with cloud-native architectures, Experience building production-grade systems, Ability to design scalable architectures, Experience with CI/CD and DevOps practices 📃 Skills: Java, GCP, AWS, Azure, Kubernetes, Docker, CI/CD, REST, API, Microservices, HTML, CSS, JavaScript, DevOps, Observability 🏢 Description: We are seeking a highly skilled Java Full-Stack Engineer to join our engineering team in building and evolving cloud-based products. The ideal candidate will possess extensive experience in software development, particularly with Java and modern frontend technologies. A strong understanding of cloud platforms, specifically GCP, is highly desirable, along with the ability to work independently within a senior engineering environment. What we offer: Remote Role Long Term B2B Contract Rate: 170-190 PLN/H + VAT Main Responsibilities Design, build, and maintain scalable full-stack applications using Java and modern frontend technologies. Develop robust backend services, APIs, and integrations. Work with cloud-native architectures and deployment models. Contribute to technical architecture and engineering decision-making. Improve reliability, performance, security, and maintainability of the platform. Collaborate closely with product, design, and engineering colleagues. Mentor other engineers and help raise the technical bar across the team. Explore and apply modern development practices, including AI-assisted and agentic coding workflows where relevant. Key Requirements Strong senior-level experience as a software engineer. Deep hands-on experience with Java and backend development. Solid full-stack development experience, including modern frontend frameworks. Good understanding of cloud platforms and cloud-native engineering. Ability to work independently and make sound technical decisions. Strong communication skills and the ability to collaborate across teams. Experience building production-grade systems with high standards for quality, scalability, and maintainability. Nice to Have Experience with Google Cloud Platform , though AWS or Azure experience is also relevant. Experience with Kubernetes, containers, CI/CD, observability, and modern DevOps practices. Knowledge of AI-assisted development tools, coding agents, or agentic coding workflows. Experience in fintech, identity, compliance, SaaS, or other high-trust environments. Other Details Preferred locations include Vilnius, Lithuania or elsewhere in Lithuania , with secondary options being Poland or remote within the EU . This role is suitable for experienced professionals keen on working with innovative technologies in a dynamic environment.

🏢 Summary: Senior Java Full-Stack Engineer role focused on designing and building scalable cloud-native applications with modern frontend and backend technologies. The position involves developing robust APIs and services, contributing to architecture decisions, and improving platform reliability, performance, and security. This is a long-term remote B2B contract within a senior engineering environment. 🗂️ Requirements: Senior-level experience in software engineering, Strong hands-on experience with Java, Experience in backend development, Full-stack development experience with modern frontend frameworks, Understanding of cloud platforms and cloud-native architectures, Experience building production-grade, scalable systems, Ability to design APIs and backend services, Knowledge of containers and CI/CD practices 📃 Skills: Java, GCP, AWS, Azure, Kubernetes, Docker, CI/CD, APIs, Microservices, Frontend, Cloud, DevOps 🏢 Description: We are seeking a highly skilled Java Full-Stack Engineer to join our engineering team in building and evolving cloud-based products. The ideal candidate will possess extensive experience in software development, particularly with Java and modern frontend technologies. A strong understanding of cloud platforms, specifically GCP, is highly desirable, along with the ability to work independently within a senior engineering environment. What we offer: Remote Role Long Term B2B Contract Rate: 170-190 PLN/H + VAT Main Responsibilities Design, build, and maintain scalable full-stack applications using Java and modern frontend technologies. Develop robust backend services, APIs, and integrations. Work with cloud-native architectures and deployment models. Contribute to technical architecture and engineering decision-making. Improve reliability, performance, security, and maintainability of the platform. Collaborate closely with product, design, and engineering colleagues. Mentor other engineers and help raise the technical bar across the team. Explore and apply modern development practices, including AI-assisted and agentic coding workflows where relevant. Key Requirements Strong senior-level experience as a software engineer. Deep hands-on experience with Java and backend development. Solid full-stack development experience, including modern frontend frameworks. Good understanding of cloud platforms and cloud-native engineering. Ability to work independently and make sound technical decisions. Strong communication skills and the ability to collaborate across teams. Experience building production-grade systems with high standards for quality, scalability, and maintainability. Nice to Have Experience with Google Cloud Platform , though AWS or Azure experience is also relevant. Experience with Kubernetes, containers, CI/CD, observability, and modern DevOps practices. Knowledge of AI-assisted development tools, coding agents, or agentic coding workflows. Experience in fintech, identity, compliance, SaaS, or other high-trust environments.

🏢 Summary: Senior Software Engineer role focused on designing, developing, and maintaining scalable e-commerce applications using Kotlin/Java and Spring in a hybrid model in Warsaw. The position involves technical ownership of architecture and performance, close cross-functional collaboration, and driving engineering best practices. Offer includes competitive salary on an employment contract and comprehensive benefits. 🗂️ Requirements: 5+ years of professional software development experience with production systems, Proficiency in Java or Kotlin, Experience with modern backend development ecosystems, Understanding of agile, lean, and DevOps principles, Ability to design scalable and high-performance architectures, Fluent English 📃 Skills: Kotlin, Java, Spring, AWS, DevOps, Agile 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. As a Senior Software Engineer , you will be a key member of a cross-functional team, responsible for designing, developing, and maintaining scalable e-commerce applications. You will leverage your expertise in Kotlin to deliver high-quality, efficient, and reliable solutions. Additionally, you will share your knowledge with team members and contribute to the technical standards of the projects. Key takeaways: Stack: Kotlin/Java, Spring, nice to have: AWS Salary: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with MOTIFE Recruiter Panel interviews with the team (coding, architecture and cross-collaboration interviews) Responsibilities: Technical Ownership Own the architecture, scalability, and performance of e-commerce applications as a senior technical expert. Design and develop clean, maintainable, and high-performance systems following best practices. Contribute directly to the codebase and actively participate in technical discussions, proposing robust solutions. Cross-Functional Collaboration Work closely with Product, Design, UX, and Program Management to deliver roadmap objectives. Help identify dependencies and remove technical blockers across engineering and partner teams. Culture & Continuous Improvement Promote engineering efficiency through automation, reuse, and modern design patterns. Support defining and analysing technical KPIs that contribute to continuous improvement. Champion code quality through code reviews, technical documentation, and knowledge-sharing activities. Requirements: Technical Expertise 5+ years of professional software development experience with production systems. Strong proficiency in Java or Kotlin and modern backend development ecosystems. Solid understanding of agile, lean, and DevOps principles and their practical application. Collaboration & Communication Strong interpersonal skills with empathy for engineers, customers, and stakeholders. Excellent communication skills, with fluent English, enabling clarity and alignment across teams. Passion for technology, elegant code, and innovative problem-solving. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro

🏢 Summary: Senior Software Engineer role focused on designing, developing, and maintaining scalable e-commerce applications using Kotlin/Java and Spring. The position involves technical ownership of architecture, performance, and code quality within a cross-functional team. The engineer contributes directly to the codebase and drives best practices, automation, and continuous improvement. 🗂️ Requirements: 5+ years of professional software development experience with production systems, Strong proficiency in Kotlin or Java, Experience with Spring framework, Experience designing scalable and high-performance backend systems, Practical knowledge of Agile, Lean, and DevOps principles, Experience working on e-commerce applications, Fluent English 📃 Skills: Kotlin, Java, Spring, AWS, DevOps, Agile, Architecture, E-commerce 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. As a Senior Software Engineer , you will be a key member of a cross-functional team, responsible for designing, developing, and maintaining scalable e-commerce applications. You will leverage your expertise in Kotlin to deliver high-quality, efficient, and reliable solutions. Additionally, you will share your knowledge with team members and contribute to the technical standards of the projects. Key takeaways: Stack: Kotlin/Java, Spring, nice to have: AWS Salary: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with MOTIFE Recruiter Panel interviews with the team (coding, architecture and cross-collaboration interviews) Responsibilities: Technical Ownership Own the architecture, scalability, and performance of e-commerce applications as a senior technical expert. Design and develop clean, maintainable, and high-performance systems following best practices. Contribute directly to the codebase and actively participate in technical discussions, proposing robust solutions. Cross-Functional Collaboration Work closely with Product, Design, UX, and Program Management to deliver roadmap objectives. Help identify dependencies and remove technical blockers across engineering and partner teams. Culture & Continuous Improvement Promote engineering efficiency through automation, reuse, and modern design patterns. Support defining and analysing technical KPIs that contribute to continuous improvement. Champion code quality through code reviews, technical documentation, and knowledge-sharing activities. Requirements: Technical Expertise 5+ years of professional software development experience with production systems. Strong proficiency in Java or Kotlin and modern backend development ecosystems. Solid understanding of agile, lean, and DevOps principles and their practical application. Collaboration & Communication Strong interpersonal skills with empathy for engineers, customers, and stakeholders. Excellent communication skills, with fluent English, enabling clarity and alignment across teams. Passion for technology, elegant code, and innovative problem-solving. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro

🏢 Summary: Senior Software Engineer role focused on designing, developing, and maintaining scalable e-commerce applications using Kotlin/Java and Spring. The position involves owning architecture, performance, and code quality while contributing hands-on to backend development. Hybrid work model in Warsaw with a strong emphasis on technical leadership and modern engineering practices. 🗂️ Requirements: 5+ years of professional software development experience, Strong proficiency in Kotlin or Java, Experience with Spring framework, Experience building and maintaining production systems, Ability to design scalable and high-performance architectures, Practical knowledge of Agile and DevOps principles, Experience contributing to code reviews and technical documentation 📃 Skills: Kotlin, Java, Spring, AWS, Agile, DevOps, REST, Microservices, Git, SQL 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. As a Senior Software Engineer , you will be a key member of a cross-functional team, responsible for designing, developing, and maintaining scalable e-commerce applications. You will leverage your expertise in Kotlin to deliver high-quality, efficient, and reliable solutions. Additionally, you will share your knowledge with team members and contribute to the technical standards of the projects. Key takeaways: Stack: Kotlin/Java, Spring, nice to have: AWS Salary: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with MOTIFE Recruiter Panel interviews with the team (coding, architecture and cross-collaboration interviews) Responsibilities: Technical Ownership Own the architecture, scalability, and performance of e-commerce applications as a senior technical expert. Design and develop clean, maintainable, and high-performance systems following best practices. Contribute directly to the codebase and actively participate in technical discussions, proposing robust solutions. Cross-Functional Collaboration Work closely with Product, Design, UX, and Program Management to deliver roadmap objectives. Help identify dependencies and remove technical blockers across engineering and partner teams. Culture & Continuous Improvement Promote engineering efficiency through automation, reuse, and modern design patterns. Support defining and analysing technical KPIs that contribute to continuous improvement. Champion code quality through code reviews, technical documentation, and knowledge-sharing activities. Requirements: Technical Expertise 5+ years of professional software development experience with production systems. Strong proficiency in Java or Kotlin and modern backend development ecosystems. Solid understanding of agile, lean, and DevOps principles and their practical application. Collaboration & Communication Strong interpersonal skills with empathy for engineers, customers, and stakeholders. Excellent communication skills, with fluent English, enabling clarity and alignment across teams. Passion for technology, elegant code, and innovative problem-solving. What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro

🏢 Summary: Senior Java / Full-Stack Developer role focused on designing, implementing, and maintaining modern applications within a mature software architecture. The position involves backend development in Java, frontend work with modern frameworks, and participation in the full software lifecycle in an agile environment. Optional responsibilities include software architecture design, CI/CD pipeline development, and technical leadership. 🗂️ Requirements: Degree in Computer Science or equivalent professional experience, Strong professional experience in modern application development, Very good knowledge of Java and backend web services, Experience with relational and transactional databases, Experience with automated unit or integration testing, Practical experience with agile methodologies, Familiarity with Git or SVN and collaboration tools like Jira and Confluence, Solid understanding of architecture standards and best practices, English proficiency at minimum B2 level 📃 Skills: Java, SQL, REST, Angular, React, Git, SVN, Jira, Confluence, CI/CD, Cloud, JUnit, API, Databases 🏢 Description: We are looking for a Senior Java / Full-Stack Software Developer ! We offer: Salary: 150-180 PLN net/hour on B2B. Remote work from Poland. Responsibilities: ·       Design and implement new features and requirements in Java ·       Integrate solutions into an existing, mature software architecture ·       Participate in all phases of the software lifecycle: ­   Planning and technical conception ­   Implementation and testing ­   Maintenance and operational support ·       Ensure quality, stability, and maintainability of the software ·       Develop backend components (Java, databases, services, APIs) ·       Contribute to modern frontend development (e.g. Angular, React) ·       Actively collaborate within an agile, cross-functional team ·       Apply architectural standards, best practices, and clean code principles Optional: Architecture Responsibilities (Senior / Architect Track) Depending on experience and interest, you may additionally: ·       Design and further develop the overall software architecture ·       Select appropriate frameworks, tools, and cloud solutions ·       Take responsibility for complex systems and end-to-end solutions ·       Shape CI/CD pipelines and technical standards ·       Act as a technical point of contact and mentor for the team We are looking for: ·       Degree in (Business) Computer Science, or vocational training as IT Specialist, or comparable professional experience ·       Strong professional experience in developing modern applications · Very good knowledge of Java, including backend and web services ·       Experience with relational and transactional databases ·       Experience with automated tests (unit and/or integration tests) ·       Practical experience with agile development methodologies ·       Familiarity with version control and collaboration tools (e.g. Git/SVN, Jira, Confluence, common IDEs) ·       Solid understanding of architecture standards and best practices · English language skills (written and spoken), minimum B2 ·       Ability to work independently ·       Team-oriented mindset and customer-focused thinking Nice to Have: ·       Experience with Angular, React, or similar frontend frameworks ·       Exposure to financial systems or securities trading ·       Experience with CI/CD pipelines and cloud-based architectures ·       Background in long-lived enterprise or regulated systems Ta rola nie jest dla Ciebie, ale masz znajomego, który by się sprawdził? Poleć go i zgarnij nawet 5000 zł. Referral Program: Talent from your network Don't hesitate and apply now!

🏢 Summary: Mid and Senior Software Engineers are sought to design and build high-performance backend systems powering global content delivery on a large-scale fitness platform. The role focuses on event-driven microservices, architectural leadership, and ensuring reliability, scalability, and performance for systems used by millions of users. This is a hands-on position with strong ownership in distributed systems operating at scale. 🗂️ Requirements: 4+ years backend experience (Mid) or 6+ years (Senior), Proficiency in Kotlin or Python, Experience with Spring Boot or Python frameworks, Experience with PostgreSQL or MySQL, Experience with DynamoDB or MongoDB, Experience with microservices architecture, Experience with event-driven systems, Experience with Kafka, Knowledge of REST, gRPC, or GraphQL APIs, Experience with AWS services, Experience with Docker and Kubernetes, Experience with CI/CD pipelines, Experience with Redis or Memcached, Experience with monitoring and observability tools, Production support and incident management experience 📃 Skills: Kotlin, Python, Java, Go, TypeScript, JavaScript, Spring, REST, gRPC, GraphQL, Kafka, Redis, PostgreSQL, MySQL, DynamoDB, MongoDB, AWS, S3, Lambda, SQS, IAM, Docker, Kubernetes, Terraform, GitHubActions, Jenkins, Datadog, Sentry 🏢 Description: We are hiring on behalf of our client, a global innovator in fitness and wellness technology. Their mission is to empower people to live fit, strong, long, and happy lives by delivering integrated experiences to millions of members anytime, anywhere. We are looking for a Senior and Mid Software Engineers to join the Content Cloud team . In this role, you will design and build high-performance backend systems that power content delivery across a global platform. You will act as a technical leader within the team, driving architectural decisions, mentoring engineers, and ensuring the reliability and scalability of systems used by millions of users. This is a hands-on role with strong ownership and impact on distributed, event-driven systems at scale. Key takeaways: Stack : Kotlin (main codebase) We're open to: Java/Go/TypeScript/JavaScript, Other tools: REST/gRPC/GraphQL, Kafka, Redis, PostgreSQL/MySQL, DynamoDB/MongoDB, AWS, Docker, Kubernetes Salary : Mid : 21 000 PLN - 23 000 PLN gross on the Contract of Employment Senior: 23 000 PLN - 30 000 PLN gross on the Contract of Employment Working model : Hybrid - 3 days/week from the office Location : ul. Grzybowska 60, Warsaw Recruitment process : A call with MOTIFE Recruiter Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Backend Architecture & Scalability Design and build high-performance, scalable backend services and APIs supporting global content delivery Architect event-driven systems and microservices handling large-scale traffic and real-time interactions Drive system design decisions with a focus on reliability, performance, and security Technical Leadership Lead technical discussions, architecture reviews, and design decisions across teams Define and promote reusable patterns, components, and engineering standards Mentor engineers through code reviews, pair programming, and technical guidance Performance & Reliability Identify system bottlenecks using monitoring, tracing, and load testing tools Optimize performance through data modeling, caching strategies, and query improvements Engineering Excellence Champion best practices including CI/CD, automated testing, observability, and infrastructure as code Maintain high standards for code quality, scalability, and maintainability Continuously improve development processes and system architecture Cross-Functional Collaboration Partner closely with Product, Design, and QA to deliver impactful features Translate business requirements into scalable technical solutions Act as a domain expert within the team and contribute to platform-wide initiatives Requirements: Technical Expertise 6+ years of experience building high-performance, scalable backend systems as Senior/4+ years of experience as a Mid Engineer Strong proficiency in Kotlin, Python, or similar backend languages Experience with modern backend frameworks (e.g., Spring Boot or Python-based frameworks) Strong experience with both relational (PostgreSQL, MySQL) and NoSQL databases (DynamoDB, MongoDB) Hands-on experience with microservices and event-driven architectures Experience with distributed streaming platforms such as Kafka Solid understanding of API design (REST, gRPC, or GraphQL) Cloud & Infrastructure Hands-on experience with AWS services (e.g., S3, DynamoDB, Lambda, SQS, IAM) Experience with Docker and Kubernetes Familiarity with infrastructure and deployment tooling (e.g., Terraform, GitHub Actions, Jenkins) Experience with caching systems such as Redis or Memcached Engineering Practices Strong understanding of CI/CD, DevOps, and Agile methodologies Experience with observability and monitoring tools (e.g., Datadog, Sentry) Proven experience in production support and incident management in distributed systems What we offer: 100% paid medical care Multisport Creative tax (KUP) Home office allowance MacBook Pro Apply now If this sounds like your next step, we’d love to hear from you! Please apply via our careers page and submit your CV in English.