1634 backend developer English-speaking jobs in Warsaw

intuitive, high‑performance full‑stack product features Develop scalable UI components and robust backend ... building and shipping full‑stack production web applications Strong React and TypeScript expertise Solid backend

We are looking for a Senior Software Engineer, with experience in backend development and building ML ... : BS degree in Computer Science or equivalent practical experience 5+ years experience working with backend

encourages autonomy and technical excellence across cloud architecture, container orchestration, and backend ... , and Kafka Ensure cloud security, cost optimization, and disaster recovery practices Contribute to backend ... Familiarity with RESTful APIs, microservices architecture, and data-intensive backend systems Responsibilities

Node.js services (e.g., REST APIs, BFF layers) to ensure smooth communication between frontend and backend ... reusable UI components using TypeScript, Bootstrap, HTML5, and CSS3 integrate frontend applications with backend ... mechanisms (OAuth, OIDC, JWT) strong debugging and problem‑solving skills, especially across frontend‑backend

ensuring inclusive user experiences Develop and maintain chat-based user interfaces integrated with backend ... You will work closely with product, design, and backend teams to deliver inclusive, reliable, and maintainable ... Optimize performance, scalability, and long-term maintainability Collaborate closely with designers, backend

Junior/Middle Python Developer – Interested in AI Projects Warsaw, Mazowieckie, Poland 11 months ago ... Who you are To be successful in this team you must be an expert in two or more of the following: Backend

Currently, for our client, we are looking for a skilled OSM Developer. ... OSM Developer Miejsce pracy: Warszawa Technologies we use Expected Jira Oracle OSM RODOD Operating

Senior .NET Core Developer – Suppliers Team 1 week ago Be among the first 25 applicants Get AI-powered ... innovation center (formerly Holisto Ltd.) is looking for a passionate and seasoned Senior .NET Core Developer

We're looking for a Senior Ruby on Rails and React Developer (Expert) to join our team!

Responsibilities Designing, implementing, and maintaining automated test solutions for web and backend ... test cases, Experience with Cucumber, Experience with Selenium WebDriver or Selenide, Experience in backend ... and designing test scenarios and test cases based on business and technical requirements, Automating backend

Job Description Turnitin is seeking a Senior Fullstack/Backend Engineer with a strong focus on backend ... Essential Qualifications, Skills, and Knowledge/Experience 8+ years of expertise in backend development ... Responsibilities Design, develop, and optimize scalable shared backend services using Java and serverless

ship intuitive, high-performance full-stack product features Develop scalable UI components and robust backend ... building and shipping full-stack production web applications Strong React and TypeScript expertise Solid backend

through API consumption Collaborate with cross-functional teams to improve automation workflows and developer ... extensions within Backstage.io using Node.js and React Build and enhance platform APIs supporting internal developer

through API consumption Collaborate with cross-functional teams to improve automation workflows and developer ... extensions within Backstage.io using Node.js and React Build and enhance platform APIs supporting internal developer

About the Role Design, build, and maintain Java backend services Contribute to architecture decisions ... You'll join a new backend team in Warsaw working on the evolution of our eSIM, global connectivity ... development Experience working with production backend systems Solid understanding of REST APIs, databases ... scale, and execution excellence.About the TeamThis is a senior, hands-on Java role focused on scalable backend ... Mentor other engineers when needed Requirements About You 5+ years of professional experience in Java backend

Backend Collaboration: Collaborate closely with backend engineers to determine required APIs and backend ... Maintain clear communication channels to ensure smooth integration of frontend and backend components ... You’ll collaborate closely with product, design, and backend teams to deliver seamless and reliable financial

: Building, automating, and maintaining reliable, scalable cloud environments while contributing to backend ... cost optimization, and disaster recovery best practices Software Development (≈20%): Contribute to backend ... encourages autonomy and technical excellence – whether in AWS architecture, container orchestration, or backend ... Python applications Familiarity with RESTful API design, microservices architecture, and data‑intensive backend

Basic backend capabilities (light API work, debugging, data transformations). ... Integrate the app with backend APIs (primarily the /experience/orchestrate lane and supporting endpoints ... helping us with our next-generation consumer experience: a FlutterFlow app powered by a schema-driven AI backend

Handle occasional backend tasks and cloud deployments using Cloudflare. ... Key Responsibilities: Build and enhance scalable frontend and backend systems.

Strong understanding of developer workflows and pain points . ... Job Description We are looking for a Senior Platform Engineer (Developer Experience) to establish and ... Qualifications Proven experience in DevOps, Platform Engineering, or Developer Productivity roles . ... Demonstrate improvements in lead time for changes, deployment frequency, and/or developer satisfaction ... standardise engineering practices, improve developer workflows, and set standards for CI/CD and collaboration