301 backend developer English-speaking jobs in Greater Poland Voivodeship

ABOUT THE ROLE We are looking for a Full Stack Developer to build and integrate LLM‑powered features ... across frontend and backend systems. ... You will develop React components, extend Python backend services, and work directly with LLM APIs to ... and component‑driven development; 1+ year of experience with Python, including API development and backend ... usage, and AI workflows; Build and maintain React‑based frontend components; Develop and extend Python backend

ABOUT THE ROLE We are looking for a Full Stack Developer to build and integrate LLM‑powered features ... across frontend and backend systems. ... You will develop React components, extend Python backend services, and work directly with LLM APIs to ... and component‑driven development; 1+ year of experience with Python, including API development and backend ... usage, and AI workflows; Build and maintain React‑based frontend components; Develop and extend Python backend

You will work primarily in Java on the backend, with growing involvement in TypeScript and React on the ... Must Haves 2 years of professional software engineering experience; Solid foundation in Java for backend ... leveraging modern tooling (including AI) where it adds value; Contribute across the stack — primarily 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

The Role We are looking for a Senior .NET Developer to join a high-performing delivery team supporting ... Build scalable backend solutions powering the next generation of digital trading experiences. ... You will play a key role in designing, developing, and maintaining backend services and integrations ... This role is ideal for someone with strong backend engineering expertise, solid database development ... What You'll Do Design, develop, and maintain backend services and APIs using .NET Framework technologies

We are looking for a Senior Java Developer to join our team in Poland and contribute to the development ... Requirements 5 -15 years of professional backend development experience. ... Design and develop backend architecture for fintech products and platforms. ... Proven experience building and maintaining backend services and APIs at scale. ... Participate in code reviews and continuously improve backend quality and engineering standards.

You are A seasoned backend developer with at least 4 years of experience in Node.js and TypeScript. ... Your impact zone Design, develop, and maintain backend services in Node.js and TypeScript Build and scale ... reviews, and tech discussions Key responsibilities Collaborate with the team on designing scalable backend ... years of experience in Node.js, JavaScript/TypeScript Strong command of Express.js, REST APIs, and backend

exposure to modern mobile technologies flexible cooperation model (B2B) If you are an experienced iOS Developer ... services and APIs collaborate with backend and product teams ensure high code quality and follow best ... mobile applications implement new features based on business requirements integrate mobile apps with backend

Their developer experience is your responsibility. ... direction of our backend platform while remaining 100% hands-on in the code. ... About the role We're looking for a Senior Backend Architect with deep Go expertise to lead the technical ... Must-have 8 years of backend engineering experience, with 4 years shipping production Go. ... Set the architectural direction for the backend platform — service boundaries, communication patterns

React on the frontend and C# .NET Core on the backend. ... About the Role We are seeking a highly experienced Senior Full Stack Developer with deep expertise in ... stack applications using React, C#.NET Core, and supporting technologies. • Build high-performance backend

We are currently seeking a talented Senior Golang Developer. ... Golang Developer - Freelance Miejsce pracy: Poznań Technologies we use Expected Go Golang AWS Optional ... Solid experience building backend systems and APIs in a production environment. ... We are also open to candidates with a Fullstack profile, particularly those who bring solid backend expertise ... Your responsibilities Develop and maintain backend services using Go (Golang) in a modern product environment

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

Part-time Location: Remote Cooperation Model: Flexible (standby / on-call duties) We are looking for a .NET Developer ... applications Bug fixing in existing codebases Working with REST APIs Collaboration with other developers (backend ... weekend day (24h)➕ Hourly rate for actual work performed Requirements Min. 5 years of experience in .NET backend

React Developer We are looking for a React Developer responsible for developing and maintaining modern ... ) Experience with SSR/SSG Knowledge of accessibility principles (a11y) Experience with Docker Basic backend

frontend solutions across the full development lifecycle Collaborate closely with UX/UI designers, backend ... The Role As a React Developer , you will play a hands‐on role in designing and delivering modern, scalable ... client‐facing solutions in agile delivery teams What We're Looking For 6 years of experience as a Software Developer

Building and maintaining features within the SaaS application Requirements 2–4 years of experience in backend ... We are looking for a Mid-level Java Developer to join our client’s engineering team and support the development ... hours Participate in regular team meetings and virtual team events Integrate with the client’s wider developer

Improve developer workflows and team productivity with tools and automation. ... This is a hands-on leadership role for a skilled senior backend engineer ready to lead. ... Role Overview We are looking for a Backend Tech Lead to guide one of our engineering teams. ... Mentor backend engineers and support their growth through guidance, code reviews, and career development

Build CI/CD solutions to improve developer productivity and enable rapid deployments. ... research engineering team to design, build, and operate the infrastructure behind a security-sensitive backend ... It is a hybrid DevOps and backend engineering role with Docker experience on top of a Kotlin/DevOps foundation

You'll be hands-on with frontend and backend development across our React/TypeScript and NestJS/Node.js ... Leverage new and cutting-edge developer tools to enhance productivity and code quality. ... Role Overview As a Senior Software Engineer, you will serve as a senior full-stack developer for our

Full Stack Developer (Node.js/React)Miejsce pracy: PoznańTechnologies we useExpectedReact.jsNode.jsJavaScriptTypeScriptPythonDockerLLMAbout ... It combines frontend, backend, and AI-powered product development, with a strong emphasis on scalability ... React and modern frontend development practicesExperience with Node.js, JavaScript/TypeScript, and backend ... Engineering, or equivalent practical experienceStrong hands-on full-stack experience across frontend, backend ... interactive and scalable frontend applications using React with a focus on performance and usabilityDevelop backend

Full Stack Developer (Node.js/React) Miejsce pracy: Poznań Technologies we use Expected React.js Node.js ... It combines frontend, backend, and AI-powered product development, with a strong emphasis on scalability ... React and modern frontend development practices Experience with Node.js, JavaScript/TypeScript, and backend ... Engineering, or equivalent practical experience Strong hands-on full-stack experience across frontend, backend ... interactive and scalable frontend applications using React with a focus on performance and usability Develop backend