1639 backend developer English-speaking jobs in Masovian Voivodeship

We are looking for an experienced Senior Full Stack Developer to join an international team working on ... Your responsibilities Design, develop, and maintain REST APIs using Java and Spring Build and enhance backend

integration, agentic workflows, and enterprise AI infrastructure. 4+ years as a Platform Engineer, Backend ... with strong platform engineering and DevOps expertise to design, build, and maintain a cutting-edge developer ... with strong platform engineering and DevOps expertise to design, build, and maintain a cutting-edge developer ... for AI endpoints protecting against abuse and ensuring multi-tenant isolation., Create self-service developer

We are currently in search of a proficient expert to join us as a Full-Stack C# Developer. ... the development and maintenance of applications running various platforms, with a notable focus on backend ... languages and libraries such as HTML/CSS, as well as JavaScript, and frameworks like Node.jsStrong backend

Qualifications You have 7+ years as a Backend developer using Java (Java 11 through Java 21+) You have ... experience leading and mentoring backend engineers, providing guidance and direction on best practices

velocity of all City’s Experience product teams by building and maintaining a robust, self‑service developer ... shifting toward TypeScript and JavaScript, though you will also work with Java/Kotlin for specific backend ... Professional experience or solid comfort levels with Java or Kotlin is required to support critical backend

Engineering Manager, you’ll help your team adopt AI responsibly and effectively—using it to improve developer ... Our engineering teams build cloud-native backend services using technologies including Java, Spring Boot ... Technical background Strong software engineering background, ideally with Java or similar backend technologies

We are looking for a Senior Full Stack Developer, but we are also open to experienced Frontend Developers ... with expert-level React skills who would like to further develop their backend expertise. ... React Alternatively, 8 years of hands-on experience with React and a strong interest in developing backend

Continuously improve system performance, UX, and developer workflows. ... Define technical architecture for both frontend and backend systems, ensuring scalability and stability

We are looking for a Senior Full Stack Developer with strong architectural mindset for our client, one ... development.ResponsibilitiesTake ownership of solution design and support architectural decisions across frontend and backend

You have minimum 3 years of professional experience in C# backend development. ... Our Team: Join our Fixed income, Forex and Credit (FFC) teams as a C# Developer and contribute to the ... Our Team: Join our Fixed income, Forex and Credit (FFC) teams as a C# Developer and contribute to the

ensuring scalability and long-term maintainability, Work closely with product managers, designers, and backend ... As a Senior Android Developer (m/f/d), you will take full ownership of our Android application, driving ... You’ll be expected to bring strong opinions on architecture, performance, and developer experience, helping ... As a Senior Android Developer (m/f/d), you will take full ownership of our Android application, driving ... You’ll be expected to bring strong opinions on architecture, performance, and developer experience, helping

Principal) of software engineering experience.Hands-on coding expertise with modern backend technologies ... architecture, event streaming, or platform engineering.Exposure to AI/LLM platforms, agentic systems, or developer

We are currently looking for an experienced OutSystems Senior Developer to join an international team ... Work closely with UX/UI designers, backend developers, and business experts to deliver end-to-end solutions

large enterprise systems and/or SaaS platforms; Experience playing a key role in projects (e.g. key developer ... Responsibilities: Design, develop, and maintain backend solutions using C#/.NET; Build and maintain cross-platform

Are you a fullstack developer who loves creating complex web applications? ... Demonstrate practical backend development expertise using Python, with Flask and FastAPI, knowledge of

Building secure communication between backend services and frontend applications. ... We're looking for an experienced Senior Azure API Developer to join a high-impact engineering team delivering

Previous experience in a similar Analyst Developer role. ... Analyst Developer (MuleSoft) Location: Remote Employment type: B2B We are currently looking for an Analyst ... Developer with strong MuleSoft expertise to join an international project within the insurance sector ... As an Analyst Developer, you will be responsible for designing, developing, testing, and implementing

This is a fully remote role for a developer in Poland. ... backend services for market data and electronic trading Fully remote for a top N. ... Proven experience building backend services for front-office trading systems. ... The Role at a Glance Senior C# .NET Backend Engineer Building a trading systems, including high-performance

Box AI capabilities) into the team's standard development workflow., Measure and continuously improve developer ... What You'll tackle in the first 6-12 months Lead the effort to break our backend and frontend out of ... Who You Are 12+ years of professional software engineering experience across backend and frontend. 5+ ... Set up frameworks for effective cross-site, cross-functional collaboration between backend and frontend ... What You'll tackle in the first 6-12 months Lead the effort to break our backend and frontend out of

Software Developer (SharePoint) | Freelance ContractWe're looking for an experienced Software Developer