238 backend developer English-speaking jobs in Poznań

You will work primarily in Java on the backend, with growing involvement in TypeScript and React on the ... leveraging modern tooling (including AI) where it adds value Contribute across the stack — primarily backend ... MUST HAVES ~2 years of professional software engineering experience Solid foundation in Java for backend ... frontend, integrating AI coding assistants like Claude Code and Codex into developer workflows. ... The role focuses on improving test reliability, coverage, and developer experience alongside a collaborative

Proactive in improving code quality and developer experience. ... Role Overview We are looking for a Senior Back-End Developer to design, build, and improve the APIs, ... Essential Requirements Experience working as a Back-End or Full-Stack Developer in a SaaS environment ... Preferred Requirements Experience with infrastructure-as-code tools such as Terraform or Terragrunt and AWS developer

Senior Java Developer (Java, Spring Boot, Microservices) Position Overview We are looking for a Senior ... Java Developer to join our team in Poland and contribute to the development of highly scalable fintech ... Requirements 3–5 years of professional backend development experience. ... Proven experience building and maintaining backend services and APIs at scale. ... Responsibilities Design and develop backend architecture for fintech products and platforms.

/Kotlin Collaborate closely with cross-functional teams including product owners, UX designers, and backend ... development practices (MVVM, Clean Architecture) Experience with RESTful APIs and integration with backend ... CAPCO POLAND SENIOR ANDROID DEVELOPER Capco Poland is a leading global technology and management consultancy ... ROLE OVERWIEW: We are currently looking for a Senior Android Developer to join our growing engineering ... and contribute to continuous improvement Essential Skills & Experience Solid experience as an Android Developer

strong Python backend skills. ... You are A Frontend/Fullstack Developer with 2.5 years of experience, combining deep React expertise with ... strong proficiency in React and modern JavaScript/TypeScript Very strong proficiency in Python and backend ... scalable frontend applications with a focus on performance and user experience Build and maintain robust backend

Participate in backend architecture and technical decisions. ... Svitla Systems Inc. is looking for a Senior Node.js Developer with AWS for a full-time position (40 hours ... Responsibilities Develop and maintain backend services in Node.js. ... Requirements 4-5 years of experience as a Back End Developer with Node.js and NestJS (for complex services ... Understanding of data-heavy backend systems (aggregation, querying, performance).

We are looking for an experienced Python Developer responsible for developing and maintaining backend ... Key Responsibilities Design, develop, and maintain scalable backend applications using Python Build and ... related fields, or equivalent experience Nice to have: Experience in creating, testing, and maintaining backend

build and enhance next-generation trading and backend platforms . ... We are looking for an experienced Senior C++ Developer to join our client’s engineering team and help

the development and maintenance of modern web applications and backend services. ... This posting is part of a Talent Pool for the .NET Developer role. ... We are seeking a Regular or Senior .NET Web Developer to work on an active client project focused on ... discussions Collaborate with QA, DevOps, and product teams Requirements Commercial experience as a .NET Developer

We are looking for an experienced .NET WinForms Developer to join the frontend engineering team and help ... Collaborate with backend engineers (C++ systems) to maintain low-latency TCP/socket communication .

must-have) Collaborate with developers, PMs, and designers Requirements 4–5 years of experience as a .NET Developer ... About the project You’ll be working on backend systems within the energy and logistics domain , focusing ... Duration: ~3 months (with possible extension) Your role Design and develop backend applications using

internships, or professional roles — prior commercial experience is not required, but a plus.Strong backend

We’re looking for a Senior Full-Stack Developer to join our team and help build an innovative digital ... layers Build intuitive user interfaces using TypeScript, Next.js, React/Redux, and Three.js Develop backend ... quality and long-term goals Responsibilities Design and develop scalable applications across frontend and backend ... Requirements 5 years of software development experience building scalable systems Strong proficiency in both backend

We are seeking a highly experienced Full-Stack Developer (Angular / Java / AWS) to join a hybrid development ... with Angular, building scalable and modern web applications Minimum 4-5 years of experience in Java backend ... the software development lifecycle (design, implementation, testing, deployment) Develop and maintain backend

Staff Backend Engineer (Intego - Security Division)We’re looking for a Staff Software Engineer to help ... shape the backend foundation of Intego, one of the flagship products within Kape’s Security Division ... OwnBuild server‑side technologies to support new features of Intego ONEMaintain and evolve existing backend ... support to investigate and resolve issues reported by customersMaintain and ensure the technical level of backend ... environmentsHands‑on experience with Docker, Kubernetes, and AWSAbility to build and maintain reliable, scalable backend

Embark on a journey of continuous growth and advancement as a Mobile App Developer , becoming an integral ... performance, quality, and responsiveness across a wide range of devices Connect mobile apps to the backend ... automated tests (Unit and UI) to maintain high-quality standards Collaborate closely with designers, backend ... managers Work in a young, dynamic team responsible for the entire product ecosystem—from hardware to backend

Collaborate closely with other teams that contribute to Cleeng platformImprove performance, reliability, and developer ... While you don't need to be a Backend or DevOps specialist, you should be comfortable navigating APIs, ... Next.js / AWS Lambda) and integrate with backend servicesWork with AWS-based environments to debug, monitor ... designing scalable front-end architecturesSolid understanding of how modern web apps interact with APIs and backend

We are currently seeking a talented Senior Golang Developer. ... Solid experience building backend systems and APIs in a production environment. ... B2B Contract Salary rate up to 34 EUR/h Fully remote position Start ASAP Develop and maintain backend ... We are also open to candidates with a Fullstack profile, particularly those who bring solid backend expertise

Then you should check out our Senior Python Backend Engineer opening as well . ... Lead Python Backend Engineer Browsing jobs can get boring, so let us convince you to actually apply for ... We’re continuously looking for backend engineers who want to work on cutting-edge Python-based systems ... Working at Reef in practice Reef Technologies is a fully remote Python backend software house . ... Lead Python Backend Engineer wanted Do you have at least 5 years of programming experience, including

Finance Location : Kraków / Hybrid/ Remote from Poland Your daily work will include: Develop and maintain backend