1836 backend developer English-speaking jobs in Warsaw

Role Overview As a Senior Full Stack Developer, you will lead the design, development, optimization, ... Key Responsibilities Backend Development: Develop robust, configurable applications using Java 17 ... Ensure security, scalability, and performance in all backend solutions Frontend Development: Develop ... with other engineering teams Lead design discussions and mentor other developers Required Skills Backend ... Bachelor’s degree in Computer Science or related field, or equivalent experience 8+ years of professional backend

Role Overview As a Senior Full Stack Developer, you will lead the design, development, optimization, ... Key Responsibilities Backend Development: Develop robust, configurable applications using Java ... Ensure security, scalability, and performance in all backend solutions Frontend Development: Develop ... with other engineering teams Lead design discussions and mentor other developers Required skills Backend ... Bachelor’s degree in Computer Science or related field, or equivalent experience 8+ years of professional backend

improvements;Drive architectural decisions and establish patterns that support scalability, reliability, and developer ... In this role, you will design high-performance backend systems and APIs that process large volumes of ... ABOUT THE ROLE We are looking for a Middle/Senior Backend Engineer to help architect and scale a modern ... high-performing team.MUST HAVES3-4 years of software development experience building scalable systems (using any backend

Role Overview As a Frontend Developer, you will play pivotal role in the design, development, and maintenance ... Qualifications Bachelor’s degree in Computer Science or related field, plus 5 years professional backend ... development experience; or Master’s degree in Computer Science or related field, plus 3 years professional backend ... enterprise environments Experience working in Agile teams (Scrum/Kanban) Nice to have Experience with Java backend

Collaborate with backend/API developers and UI/UX designers. ... Job Description As a Front‑end React Developer, you will help build a brand‑new, modern web application

This role focuses on financial systems architecture, not generic backend development. ... We are looking for a Staff Backend Engineer to own the financial core of the platform — the system responsible ... financial flows accounting or ERP systems subscription billing platforms Requirements: 8+ years of backend

experience with Nest.JS Experience with Databases - MySQL is a Must Experience with building scalable backend ... Description We’re looking for a talented Full-Stack Node.js/TypeScript Developer to join our team and ... other team members and stakeholders Requirements 6+ years of proven experience as a full-stack developer

BS degree in Computer Science or equivalent practical experience 6+ years experience working with backend ... Flume, Borg, Protocol Buffers, OnePlatform) Experience with operations tooling, developer productivity ... , or developer tools Experience with optimization / OR scheduler Experience with Geo (pathfinder, mapfacts

You will be best suited for this role if: You have at least 3 years of professional experience in C# backend ... C# Developer - M/F/D Location: Warsaw, Poland Type: Permanent contract Work arrangement: Hybrid (2-3 ... Publication date: June 3, 2025 Responsibilities Join our Fixed Income, Forex, and Credit (FFC) teams as a C# Developer

Developer Productivity & AI Adoption – Promote the use of AI‑powered development tools to improve code ... Technical Leadership & Architecture – Guide the design and evolution of scalable backend systems and ... Strong knowledge of PHP ecosystem, Node.js, JavaScript and backend development practices Experience ... management: mentoring engineers, driving engineering best practices, and ensuring the successful delivery of backend

moving from legacy patterns to modern architecture Strong background in platform engineering, developer ... The backend and frontend architecture becomes more modular, maintainable, and extensible. ... Deep expertise in Python backend development, with modern frameworks and best practices for scalable ... Lead system‑level design for backend services (Python), frontend architecture (Angular), APIs and integrations

scalability , especially for database-heavy operations, Ability to work effectively as a fullstack developer ... Build and extend React-based frontend components aligned with backend APIs. ... Develop and maintain secure, efficient backend services using PHP and Phalcon. ... What You'll Bring to the Team Must-have: Strong commercial experience in PHP backend development, ... (backend frontend), Communicative English (spoken and written) – sufficient for: - internal company

Role Overview As a Frontend Developer, you will play a pivotal role in the design, development, and maintenance ... Qualifications Bachelor’s degree in Computer Science or related field, plus 5 years professional backend ... development experience; or Master’s degree in Computer Science or related field, plus 3 years professional backend ... enterprise environments Experience working in Agile teams (Scrum/Kanban) Nice To Have Experience with Java backend

Requirements2+ years of experience in backend development using JavaSpring Boot or Quarkus skillsSolid ... practices and performance tuningCommunicative GermanProject DescriptionWe are searching for a Camunda Developer

On behalf of Wider (ex.HyperAd), SD Solutions is looking for a strong Backend/Data Engineer with 5+ years ... The ideal candidate is highly technical, hands‑on, and comfortable building scalable backend systems, ... You will design and develop backend services in Python, manage data infrastructure, and integrate AI ... Responsibilities Design, develop, and maintain scalable backend services using Python Build and optimize ... AI systems and LLM APIs Develop, test, and optimize AI prompts (Prompt Engineering – required) Build backend

In the role of Senior Backend Platform Engineer in the Jabra Hearing Engineering team, you will contribute ... The team develops and scales the backend services that run the Jabra Enhance digital platform. ... You will design, build, and evolve scalable backend systems powering digital hearing care solutions used ... You will be responsible for backend services from end to end—designing solutions, implementing new features ... Your contribution is appreciated, and you will: Design, develop, and maintain scalable backend services

In the role of Senior Backend Platform Engineer in the Jabra Hearing Engineering team, you will contribute ... The team develops and scales the backend services that run the Jabra Enhance digital platform. ... You will design, build, and evolve scalable backend systems powering digital hearing care solutions used ... You will be responsible for backend services from end to end—designing solutions, implementing new features ... Your contribution is appreciated, and you will: Design, develop, and maintain scalable backend services

systems.Knowledge of event-driven architectures (Kafka).~2+ years of experience in product engineering, developer ... , point-of-sale, marketing, and more, while connecting consumers to local services.Your Impact as a Backend ... We're seeking an exceptional Backend Engineer to join our cross-functional product team in Warsaw.What

technologies, collaborate closely with cross-functional teams, and contribute to creating reliable backend ... We’re looking for a Python Developer to join our team and help us build a high-quality, data-driven healthcare

Expert‑level Python developer (5+ years) with strong knowledge of TensorFlow, PyTorch, Scikit‑learn, ... Experience with scalable ML infrastructure and backend engineering (API design, cloud integrations, ML