Senior Software Engineer (Kotlin)

🏢 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 Software Development Engineer in Test role focused on defining test strategy and building scalable automation for e-commerce and user experience platforms used by millions of customers. The position drives quality across complex web and backend systems, shaping automation architecture and CI/CD practices. It involves leading testing efforts and improving reliability of business-critical applications. 🗂️ Requirements: 6+ years of experience in software testing and test automation, Strong programming skills in Python, Java, JavaScript, Kotlin, or TypeScript, Experience designing and maintaining test automation frameworks, Extensive experience in UI and API test automation, Strong knowledge of CI/CD workflows and tools, Experience testing complex front-end and back-end systems, Experience working in Agile teams, Ability to lead testing efforts across teams 📃 Skills: Python, Java, JavaScript, TypeScript, Kotlin, REST, API, UI, Jenkins, CircleCI, GitHub, Git, CI/CD, Automation, E2E 🏢 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. They are now looking for a Senior Software Development Engineer in Test to join the Quality Engineering team, supporting the e-commerce and user experience platforms used by millions of customers worldwide. In this role, you will play a key part in defining test strategy, shaping automation architecture, and driving quality across complex systems. You will partner closely with engineering, product, and design teams, act as a quality leader within the organization, and mentor others to continually raise the bar for testing excellence. Projects you may work on: E-commerce and user experience platforms (web + backend, business-critical user journeys), Content and streaming applications, including media- and music-related systems, Key takeaways: Stack: JavaScript, TypeScript, Python, Java, Kotlin, REST APIs, UI & API automation frameworks, Jenkins, CircleCI, GitHub Actions, Git Salary: 19 000 PLN - 23 000 PLN gross on the Contract of Employment Working model : Hybrid - 3x weekly from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with Motife recruiter Interview with the Hiring Manager Interviews panel (live coding) Final meeting Responsibilities: Define and drive comprehensive test strategies across unit, integration, and E2E testing. Architect, build, and scale test automation frameworks for complex systems. Lead the adoption of best practices in testing, automation, and maintainability. Act as a quality owner for critical features, systems, and releases. Collaborate cross-functionally with engineering, product, design, and leadership teams. Mentor and coach engineers and SDETs on testing strategies and quality standards. Support and improve CI/CD pipelines to enable fast, reliable releases. Participate in release readiness, risk assessment, and long-term quality planning. Requirements: 6–8+ years of experience in software testing and test automation. Strong programming skills in one or more languages (Python, Java, JavaScript, Kotlin, TypeScript, etc.). Proven experience designing, architecting, and maintaining test automation solutions and frameworks for complex front-end and back-end systems. Extensive experience with UI and API test automation. Strong understanding of CI/CD workflows and tools like Jenkins, CircleCI, and GitHub Actions. Experience working in cross-functional Agile teams. Ability to work autonomously and lead testing efforts across teams. Excellent communication skills and a strong user-first mindset. Nice to have Experience with content, media, or streaming platforms. Experience leading cross-team or organization-wide quality initiatives. Experience acting as a release or quality lead. What we offer: 100% paid medical care, Multisport, Creative tax (KUP) Home office allowance MacBook Pro Apply now If you’re excited to shape the future of Android development in digital fitness and wellness, we’d love to hear from you! Please apply through our careers page with your CV in English.

🏢 Summary: Senior Software Development Engineer in Test role focused on defining test strategy and building scalable automation frameworks for e-commerce and user experience platforms used by millions of customers. The position drives quality across complex web and backend systems, leading automation architecture and CI/CD improvements. It involves close collaboration with cross-functional teams and ownership of end-to-end testing excellence. 🗂️ Requirements: 6–8+ years in software testing and test automation, Strong programming skills in Python, Java, JavaScript, Kotlin, or TypeScript, Experience designing and maintaining test automation frameworks, Extensive UI and API test automation experience, Strong knowledge of CI/CD workflows and tools, Experience testing complex front-end and back-end systems, Experience working in Agile teams, Ability to lead testing efforts across teams 📃 Skills: Python, Java, JavaScript, TypeScript, Kotlin, REST, APIs, UI, Automation, Jenkins, CircleCI, GitHub, Git, CI/CD, 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. They are now looking for a Senior Software Development Engineer in Test to join the Quality Engineering team, supporting the e-commerce and user experience platforms used by millions of customers worldwide. In this role, you will play a key part in defining test strategy, shaping automation architecture, and driving quality across complex systems. You will partner closely with engineering, product, and design teams, act as a quality leader within the organization, and mentor others to continually raise the bar for testing excellence. Projects you may work on: E-commerce and user experience platforms (web + backend, business-critical user journeys), Content and streaming applications, including media- and music-related systems, Key takeaways: Stack: JavaScript, TypeScript, Python, Java, Kotlin, REST APIs, UI & API automation frameworks, Jenkins, CircleCI, GitHub Actions, Git Salary: 19 000 PLN - 23 000 PLN gross on the Contract of Employment Working model : Hybrid - 3x weekly from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with Motife recruiter Interview with the Hiring Manager Interviews panel (live coding) Final meeting Responsibilities: Define and drive comprehensive test strategies across unit, integration, and E2E testing. Architect, build, and scale test automation frameworks for complex systems. Lead the adoption of best practices in testing, automation, and maintainability. Act as a quality owner for critical features, systems, and releases. Collaborate cross-functionally with engineering, product, design, and leadership teams. Mentor and coach engineers and SDETs on testing strategies and quality standards. Support and improve CI/CD pipelines to enable fast, reliable releases. Participate in release readiness, risk assessment, and long-term quality planning. Requirements: 6–8+ years of experience in software testing and test automation. Strong programming skills in one or more languages (Python, Java, JavaScript, Kotlin, TypeScript, etc.). Proven experience designing, architecting, and maintaining test automation solutions and frameworks for complex front-end and back-end systems. Extensive experience with UI and API test automation. Strong understanding of CI/CD workflows and tools like Jenkins, CircleCI, and GitHub Actions. Experience working in cross-functional Agile teams. Ability to work autonomously and lead testing efforts across teams. Excellent communication skills and a strong user-first mindset. Nice to have Experience with content, media, or streaming platforms. Experience leading cross-team or organization-wide quality initiatives. Experience acting as a release or quality lead. What we offer: 100% paid medical care, Multisport, Creative tax (KUP) Home office allowance MacBook Pro Apply now If you’re excited to shape the future of Android development in digital fitness and wellness, we’d love to hear from you! Please apply through our careers page with your CV in English.

🏢 Summary: Senior Software Development Engineer in Test role focused on defining test strategy, building scalable automation frameworks, and driving quality across complex e-commerce and user experience platforms. The position involves leading testing efforts for web and backend systems, mentoring engineers, and improving CI/CD processes to ensure reliable releases. The role combines hands-on automation development with quality leadership in cross-functional Agile teams. 🗂️ Requirements: 6–8+ years of experience in software testing and test automation, Strong programming skills in at least one of: Python, Java, JavaScript, Kotlin, TypeScript, Experience designing and maintaining test automation frameworks for front-end and back-end systems, Extensive experience in UI test automation, Extensive experience in API test automation, Strong knowledge of CI/CD workflows and tools, Experience working in Agile teams, Ability to lead testing efforts across teams 📃 Skills: JavaScript, TypeScript, Python, Java, Kotlin, REST, API, UI, Automation, Jenkins, CircleCI, GitHub, Git, CI/CD, 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. They are now looking for a Senior Software Development Engineer in Test to join the Quality Engineering team, supporting the e-commerce and user experience platforms used by millions of customers worldwide. In this role, you will play a key part in defining test strategy, shaping automation architecture, and driving quality across complex systems. You will partner closely with engineering, product, and design teams, act as a quality leader within the organization, and mentor others to continually raise the bar for testing excellence. Projects you may work on: E-commerce and user experience platforms (web + backend, business-critical user journeys), Content and streaming applications, including media- and music-related systems, Key takeaways: Stack: JavaScript, TypeScript, Python, Java, Kotlin, REST APIs, UI & API automation frameworks, Jenkins, CircleCI, GitHub Actions, Git Salary: 19 000 PLN - 23 000 PLN gross on the Contract of Employment Working model : Hybrid - 3x weekly from the office Location: ul. Grzybowska, Warsaw Recruitment process : A call with Motife recruiter Interview with the Hiring Manager Interviews panel (live coding) Final meeting Responsibilities: Define and drive comprehensive test strategies across unit, integration, and E2E testing. Architect, build, and scale test automation frameworks for complex systems. Lead the adoption of best practices in testing, automation, and maintainability. Act as a quality owner for critical features, systems, and releases. Collaborate cross-functionally with engineering, product, design, and leadership teams. Mentor and coach engineers and SDETs on testing strategies and quality standards. Support and improve CI/CD pipelines to enable fast, reliable releases. Participate in release readiness, risk assessment, and long-term quality planning. Requirements: 6–8+ years of experience in software testing and test automation. Strong programming skills in one or more languages (Python, Java, JavaScript, Kotlin, TypeScript, etc.). Proven experience designing, architecting, and maintaining test automation solutions and frameworks for complex front-end and back-end systems. Extensive experience with UI and API test automation. Strong understanding of CI/CD workflows and tools like Jenkins, CircleCI, and GitHub Actions. Experience working in cross-functional Agile teams. Ability to work autonomously and lead testing efforts across teams. Excellent communication skills and a strong user-first mindset. Nice to have Experience with content, media, or streaming platforms. Experience leading cross-team or organization-wide quality initiatives. Experience acting as a release or quality lead. What we offer: 100% paid medical care, Multisport, Creative tax (KUP) Home office allowance MacBook Pro Apply now If you’re excited to shape the future of Android development in digital fitness and wellness, we’d love to hear from you! Please apply through our careers page with your CV in English.

🏢 Summary: Senior Software Engineer role focused on designing, developing, and integrating advanced Shopify (primarily Shopify Plus) solutions within enterprise environments. The position involves building custom applications, headless architectures, and complex integrations with core business systems. Hybrid full-time role in Warsaw with B2B or CoE contract options. 🗂️ Requirements: 5+ years of experience in e-commerce architecture or technical consulting, Minimum 3 years of hands-on experience with Shopify ecosystem, Strong experience with Shopify Plus, including admin and app ecosystem, Experience building custom Shopify applications, Experience with Shopify Functions and Checkout UI extensions, Experience with headless Shopify architectures, Hands-on experience with Microsoft Entity Framework, Experience working with Shopify REST and GraphQL APIs, Strong knowledge of HTML, CSS, JavaScript, TypeScript, Experience integrating Shopify with ERP, OMS, PIM or similar enterprise systems 📃 Skills: Shopify, ShopifyPlus, Liquid, Hydrogen, Oxygen, EntityFramework, REST, GraphQL, HTML, CSS, JavaScript, TypeScript, SCSS, ShopifyFunctions, CheckoutUI, Node.js, Ruby 🏢 Description: 💰 Salary: 21,500-28,700 PLN/Month 💻 Warsaw, Poland (Hybrid - 3 days in office, 2 days remote) 🕦 Full-time ☑️ B2B or CoE We’re looking for a Senior Software Engineer to join a fast-growing international tech company focused on building modern, data-driven platforms that power digital transformation in the financial and enterprise sectors. Requirements: 5+ years of experience in e-commerce architecture, technical consulting, or a comparable senior level role, with a minimum of 3 years focused on the Shopify ecosystem. Strong hands-on experience with the Shopify platform, particularly Shopify Plus, including admin capabilities, Liquid templating, and the broader app ecosystem. Proven experience building custom Shopify applications, including advanced customizations using Shopify Functions and Checkout UI extensions. Solid understanding of headless Shopify architectures, with experience in Hydrogen and Oxygen implementations. Hands-on experience working with Microsoft Entity Framework. experience working with Shopify APIs, including REST and GraphQL, along with strong knowledge of modern web technologies such as HTML, CSS, JavaScript and TypeScript. Demonstrated ability to design and deliver integrations with enterprise systems such as ERP, OMS, and PIM. Nice to have: Previous experience leading or contributing to re platforming projects from legacy systems. Familiarity with backend technologies such as Node.js and Ruby. Shopify certifications or other relevant e-commerce platform certifications. Key Responsibilities: Design and document end to end technical architectures for both new and existing Shopify (primarily Shopify Plus) stores, covering storefront implementation (headless or theme based), backend services, integration strategy, and security. Develop, customize, and maintain high quality Shopify themes using HTML5, Liquid, CSS3/SCSS, along with JavaScript and TypeScript. Implement and design complex integrations between Shopify and core enterprise platforms such as CRM, CDP, WMS, PIM, OMS, and ERP, utilizing GraphQL and REST APIs. Develop and manage custom Shopify applications, delivering advanced capabilities through Shopify Functions and Checkout Extensibility to support specific client requirements. Collaborate closely with the Sales team to support technical evaluations, define solution scope, estimate effort, and deliver clear, compelling technical presentations to clients. Provide technical guidance to stakeholders and engineering teams, advising on Shopify solutions, architecture decisions, and industry best practices.

🏢 Summary: Senior Software Engineer role focused on designing and operating scalable backend microservices that power AI-driven content features such as search, voice, subtitles, and translations. The position combines backend engineering, cloud infrastructure, and technical leadership within an agile team. You will integrate AI/NLP services into production systems while ensuring high availability, performance, and scalability. 🗂️ Requirements: 6+ years of backend software development experience, BS or MS degree in Computer Science, Engineering, Mathematics, or related field, Strong expertise in Kotlin, Python, or similar backend language, Experience with backend frameworks such as Spring Boot or similar JVM/Python frameworks, Experience designing APIs using REST, gRPC, or GraphQL, Experience with relational and NoSQL databases (PostgreSQL, MySQL, DynamoDB, MongoDB), Hands-on experience with AWS, Docker, Kubernetes, Experience with CI/CD and infrastructure tools such as Terraform, GitHub Actions, or Jenkins, Strong understanding of distributed systems, caching, observability, security, and performance optimization 📃 Skills: Kotlin, Python, Spring, SpringBoot, REST, gRPC, GraphQL, PostgreSQL, MySQL, DynamoDB, MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHubActions, Jenkins, CI/CD, NLP, ASR 🏢 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 Software Engineer to join the Content AI team in Warsaw. This team applies AI to content-related processes, including search, voice assistant capabilities, subtitles, live captions, translations, metadata tagging, and content generation workflows. In this role, you will act as a technical lead within an agile engineering team, designing and operating scalable microservices that support AI-powered content features. The focus is on backend engineering, production systems, and technical leadership rather than building AI models from scratch. Key takeaways: Stack : Kotlin, Spring Boot, REST, gRPC, GraphQL, PostgreSQL/MySQL/DynamoDB/MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub Actions, Datadog Salary : 26 000 PLN - 32 000 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 Hiring Manager screening Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Design, develop, and operate scalable backend APIs and microservices powering search, voice, subtitles, captions, translations, and content workflows. Lead technical discussions, architecture reviews, design decisions, and task breakdowns within the engineering team. Build services with a focus on high availability, low latency, security, scalability, and maintainability. Work with ML Engineers to integrate hosted NLP, ASR, and AI models into production backend systems. Architect reusable code, libraries, patterns, and standards that can be adopted across teams. Use monitoring, tracing, profiling, and load-testing tools to identify bottlenecks and improve production performance. Champion engineering best practices, including CI/CD, test automation, feature toggles, logging, monitoring, and reliable release processes. Mentor engineers through code reviews, pair programming, technical guidance, and incident response leadership. Requirements: 6+ years of software development experience building high-performance, scalable backend cloud application systems. BS or MS degree in Computer Science, Engineering, Mathematics, or a related technical field. Strong expertise in Kotlin, Python, or similar backend programming languages. Strong experience with backend frameworks such as Spring Boot, Bottle, Gunicorn, or similar JVM/Python frameworks. Experience designing and building APIs using REST, gRPC, or GraphQL. Experience with relational and NoSQL databases such as PostgreSQL, MySQL, DynamoDB, or MongoDB. Hands-on experience with AWS, Docker, Kubernetes, CI/CD, and infrastructure tooling such as Terraform, GitHub Actions, or Jenkins. Strong understanding of distributed systems, Elasticsearch optimization, caching, observability, security, performance optimization, production troubleshooting, and incident response. Nice to have: Experience working on AI-powered products, model-serving systems, or backend services that integrate with ML models. Experience with NLP, ASR, voice assistants, chatbots, search platforms, live captions, subtitles, translations, or content metadata workflows. 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.

🏢 Summary: Senior Software Engineer role focused on designing and operating scalable backend microservices that power AI-driven content features such as search, voice, subtitles, and translations. The position combines hands-on backend development with technical leadership in an agile team, integrating hosted AI/NLP models into production systems. The role emphasizes high availability, performance, and cloud-native architecture in a hybrid work model in Warsaw. 🗂️ Requirements: 6+ years of experience building scalable backend cloud systems, Degree in Computer Science, Engineering, Mathematics or related field, Strong proficiency in Kotlin or Python, Experience with Spring Boot or similar JVM/Python frameworks, Experience designing APIs using REST, gRPC or GraphQL, Experience with relational and NoSQL databases, Hands-on experience with AWS and containerization, Experience with Kubernetes and CI/CD pipelines, Knowledge of distributed systems and system design, Experience with monitoring, performance optimization and production troubleshooting 📃 Skills: Kotlin, Python, Spring, REST, gRPC, GraphQL, PostgreSQL, MySQL, DynamoDB, MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub, Datadog, CI/CD 🏢 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 Software Engineer to join the Content AI team in Warsaw. This team applies AI to content-related processes, including search, voice assistant capabilities, subtitles, live captions, translations, metadata tagging, and content generation workflows. In this role, you will act as a technical lead within an agile engineering team, designing and operating scalable microservices that support AI-powered content features. The focus is on backend engineering, production systems, and technical leadership rather than building AI models from scratch. Key takeaways: Stack : Kotlin, Spring Boot, REST, gRPC, GraphQL, PostgreSQL/MySQL/DynamoDB/MongoDB, Elasticsearch, Redis, AWS, Docker, Kubernetes, Terraform, GitHub Actions, Datadog Salary : 26 000 PLN - 32 000 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 Hiring Manager screening Coding interview Panel interviews with the team (coding, architecture, and cross-collaboration interviews, Hiring Manager meeting) Responsibilities: Design, develop, and operate scalable backend APIs and microservices powering search, voice, subtitles, captions, translations, and content workflows. Lead technical discussions, architecture reviews, design decisions, and task breakdowns within the engineering team. Build services with a focus on high availability, low latency, security, scalability, and maintainability. Work with ML Engineers to integrate hosted NLP, ASR, and AI models into production backend systems. Architect reusable code, libraries, patterns, and standards that can be adopted across teams. Use monitoring, tracing, profiling, and load-testing tools to identify bottlenecks and improve production performance. Champion engineering best practices, including CI/CD, test automation, feature toggles, logging, monitoring, and reliable release processes. Mentor engineers through code reviews, pair programming, technical guidance, and incident response leadership. Requirements: 6+ years of software development experience building high-performance, scalable backend cloud application systems. BS or MS degree in Computer Science, Engineering, Mathematics, or a related technical field. Strong expertise in Kotlin, Python, or similar backend programming languages. Strong experience with backend frameworks such as Spring Boot, Bottle, Gunicorn, or similar JVM/Python frameworks. Experience designing and building APIs using REST, gRPC, or GraphQL. Experience with relational and NoSQL databases such as PostgreSQL, MySQL, DynamoDB, or MongoDB. Hands-on experience with AWS, Docker, Kubernetes, CI/CD, and infrastructure tooling such as Terraform, GitHub Actions, or Jenkins. Strong understanding of distributed systems, Elasticsearch optimization, caching, observability, security, performance optimization, production troubleshooting, and incident response. Nice to have: Experience working on AI-powered products, model-serving systems, or backend services that integrate with ML models. Experience with NLP, ASR, voice assistants, chatbots, search platforms, live captions, subtitles, translations, or content metadata workflows. 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.

🏢 Summary: Senior Software Engineer role focused on designing, building, testing, and deploying cloud-based distributed systems using modern software craftsmanship practices. The position involves end-to-end ownership of microservices-based solutions in a remote-first environment, leveraging cloud platforms and AI-assisted development tools. The offer emphasizes high-quality delivery, clean architecture, and close collaboration with stakeholders. 🗂️ Requirements: 7+ years of commercial experience with Java or Kotlin, Hands-on experience with SQL and NoSQL databases, Understanding of distributed systems, Experience with event-driven architectures, Experience with microservices architecture, Experience with cloud platforms (AWS, GCP or Azure), Experience with automated testing including acceptance and performance tests, Ability to design and deploy cloud-based systems 📃 Skills: Java, Kotlin, SQL, NoSQL, Microservices, AWS, GCP, Azure, TDD, BDD, DDD, AI, Claude, Codex 🏢 Description: We are looking for a Senior 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 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: 7+ years of professional experience with Java or/and Kotlin Hands-on experience with SQL and NoSQL Understanding of distributed systems and event-driven architectures Microservices experience Experience with cloud platforms (AWS / GCP / Azure) Automated testing (including acceptance tests, performance tests) Nice to have: TDD, BDD practitioner Domain Driven Design knowledge AI-assisted software development experience 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! 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 software delivery process using 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 170-200 PLN / hour dependent on your level of expertise Open bounded B2B contract 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: Software Engineer role in a long-term international project, working in a cross-functional team responsible for full product lifecycle from design to production support. The position involves backend and frontend development using modern technologies in an iterative delivery model. Hybrid work model with 5 days per month in the office. 🗂️ Requirements: Minimum 5 years of commercial software development experience, Experience with at least one programming language: Kotlin, Python, or JavaScript, Willingness to work across backend and frontend technologies, Working knowledge of Unix/Linux environments, Understanding of databases: MongoDB, Redis, PostgreSQL, Experience with HTTP APIs and RESTful services, Ability to provide production support and troubleshoot performance and security issues, Good English communication skills 📃 Skills: Kotlin, Python, JavaScript, Unix, Linux, MongoDB, Redis, PostgreSQL, REST, HTTP, .NET, C# 🏢 Description: Software Engineer (Kotlin / Python / JavaScript) Location: Kraków or Warsaw (hybrid — 5 days per month in the office) Contract type: B2B — 130–140 PLN/h Project: Long-term international project About the Role We are looking for a Software Engineer to join a collaborative product team working in an iterative delivery model. The team is responsible for the full lifecycle of the product — from design and development to production support — following the principle: “you build it, you support it.” This role offers an opportunity to work with modern technologies across backend and frontend, while continuously learning new programming languages and tools. Key Responsibilities Work in a cross-functional team of 4–6 engineers Break down requirements into user stories and deliver iteratively to production Design technical solutions aligned with architectural guidelines Provide production support, including troubleshooting bugs, performance, and security issues Identify and manage technical debt alongside new feature development Collaborate closely with team members, including pair programming Ensure high quality and maintainability of delivered solutions Requirements Minimum 5 years of relevant commercial experience Experience with at least one programming language (Kotlin, Python, or JavaScript preferred) Willingness to learn multiple technologies across backend and frontend Working knowledge of Unix/Linux environments Understanding of databases from a usage perspective (MongoDB, Redis, PostgreSQL) Experience with HTTP APIs (RESTful services) Good English communication skills (team communication in English) Nice to Have Knowledge of .NET / C# What We Offer Hybrid work model — only 5 days per month from the office (Kraków or Warsaw) Private medical care (Medicover) Sports card (Multisport or equivalent) Life insurance Long-term, stable cooperation Opportunity to work with modern technologies in an international environment Support for professional development and learning