4482 backend developer English-speaking jobs in Warsaw

Strong backend skills in Node.js and one or more frameworks (Express, Nest.js, etc.) ... and frontend UX across devices Collaborate with designers to turn UI/UX into functional interfaces Backend ... experience in fullstack web development Deep knowledge of JavaScript/TypeScript across both frontend and backend

experienced Guidewire Developer for a long‐term freelance contract based in Poland. ... Urgent Contract Opportunity – Guidewire Developer (Poland, 100% Remote) We’re urgently looking for an ... partnering with a leading client on a high‐impact transformation project and we’re looking for a Guidewire Developer ... Poland (remote with occasional on‐site) Contract type: B2B / Freelance If you’re a skilled Guidewire Developer

Continuously learn and adapt to industry standards, best practices, and the evolving landscape of developer-focused ... understand and interpret API documentation and effectively design interfaces that can interact with backend ... about aesthetics—it’s about tackling technical challenges and understanding how things are wired at the backend

Proficiency in relational data modeling with PostgreSQL and seamless backend API integration. ... Our core backend team powers APIs, distributed data handling, and AI-powered video processing pipelines

Senior Software Engineer, Backend (Platform Reliability) Remote Poland Affirm is reinventing credit to ... You are experienced in designing, developing and launching backend systems at scale technologies like

Technology Systems team, you will play a key role in designing, building, and scaling foundational backend ... Computer Science, Engineering, or a related field, or equivalent practical experience Strong expertise in backend

Senior Software engineer, backend (Furnishing Platform) Remote Poland Affirm is reinventing credit to ... Shape architecture and technical strategy : Influence the design of backend systems across multiple teams ... For Deep technical expertise : 6+ years of experience designing and building large-scale distributed backend

Interest in developer tooling, data validation, or CI/CD for data systems. ... Software Engineer II, Backend (Furnishing Platform) Remote Poland Affirm is reinventing credit to make

Senior Software Engineer, Backend (Financial Platforms) Remote Poland Affirm is reinventing credit to ... You are experienced in designing, developing and launching backend systems at scale technologies like

Hands-on experience with Node.js for backend services and API integrations. ... Collaborate with cross-functional technology teams to integrate front-end applications with backend services ... primarily on crafting intuitive, scalable, and high-performing user interfaces while also contributing to backend ... Contribute to backend development in Node.js where required, ensuring seamless integration between front-end

Essential functions Platform Refactoring: Lead the complete backend architectural refactoring to ensure ... is a prime opportunity to drive the next generation of application development, focusing on robust backend ... Qualifications Backend Proficiency: Strong experience with Python (required) and building performant ... Full Stack Delivery: Develop and optimize both frontend components and backend APIs using modern, scalable

Developer HD Miejsce pracy: Warszawa Technologies we use Expected SQL Operating system Windows About ... the project We are looking for a skilled Data Warehouse Developer to join the team and support optimization

What You’ll Do Backend System Development: Design, implement, and maintain core backend services that ... What We Are Looking For Strong Backend Development Skills: Proven experience building robust backend ... Responsibilities Designing and implementing backend services that support drone autonomy and mission ... ROLE OVERVIEW: As a Senior Software Engineer , you will be at the core of developing the backend systems ... Strong analytical and debugging skills, with the ability to quickly identify, isolate, and resolve backend

Enhance backend services to better facilitate product development. ... It offers the perfect balance between frontend craftsmanship and backend engineering. ... Contribute to the improvement of backend services that power the product you’re building. ... This role focuses on frontend excellence while actively contributing to the essential backend systems ... good UX and pixel-perfect Strong communication skills At least Upper-Intermediate level of English Backend

Remote Fullstack Developer Join Codepole as a Fullstack Developer and work with clients such as Scania ... It is a very interesting long term project that gives an opportunity to grow as a developer and manage

Join to apply for the Go Developer (CleanTech) role at Coherent Solutions We are a digital product engineering ... Technologies Golang AWS What You'll Do Contribute to stabilizing and refactoring the Golang-based backend

Role responsibilities Ensure the performance, reliability, and scalability of backend systems, mobile ... with business priorities Oversee the technical implementation of cross-cutting initiatives, such as Developer

This role focuses on ensuring the quality of backend systems, API integrations, and front-end solutions ... Responsibilities: Perform manual testing for web systems, backend services, and API integrations Develop ... validation, chaining requests, andexperience with tools like Postman or Swagger Experience testing backend

Principal Software Developer (Python | Control Plane) page is loaded## Principal Software Developer ( ... apply: End Date: November 1, 2025 (25 days left to apply)job requisition id: R279912Principal Software Developer

looking for an experienced Senior Python Developer – AI & Data Engineering for a long contract based ... Senior Python Developer – AI & Data Engineering:For one of our globally leading tech clients we are urgently ... paying well and my client can interview asapequired skills and qualifications:Experience as a Python Developer