1065 backend developer English-speaking jobs in Warsaw

.NET Developer (gaming) role requires 5+ years in C# and strong .NET knowledge. Responsibilities include analyzing and rewriting C# code for Linux migration, using SQL, and Git. English proficiency is required.

Develop a Linux agent, the main endpoint communications hub, focusing on eBPF-based driver development. Responsibilities include system code, data processing, and kernel interactions. Requires expertise in C, Linux kernel internals, and eBPF.

Senior Frontend Developer needed to build and maintain customer-facing products using Vue.js and React. Responsibilities include developing the design system, enhancing CI/CD pipelines, and ensuring production application operation.

Develop and support Veeam Backup for Office 365. Requires good C# knowledge and deep understanding of the Windows platform, including .NET and Win API.

Develop high-quality, scalable code for financial services applications using .NET and C#. Design technical solutions, resolve issues, and support the full software development lifecycle. Requires 3+ years of experience and strong SQL Server knowledge.

Design, develop, and maintain an internal automated testing framework for Veeam products. Requires good knowledge of C# and the .NET platform, along with understanding software design principles. English proficiency is necessary.

Android Developer for financial applications. Design, develop, and maintain Android mobile apps using Clean Architecture and MVI. Requires 5+ years of Android experience and 1+ year with Kotlin Multiplatform.

Senior RTL Developer to lead functional specification development, design microarchitectures, and perform RTL debugging for next-generation SoCs and digital IPs. Requires 7+ years of digital design experience, strong Verilog/VHDL knowledge, and familiarity with tools like Cadence Genus or Synopsys Design Compiler.

Senior Fullstack Developer needed for a financial project modernizing a digital banking channel. Requires Java (6+ years), Angular (2 years), API building, and experience with SAFe Agile.

We are looking for: Senior BI Developer (freelance) Your future role: You will join the team of our product

Develop and maintain clinical technology systems (EDC, RTSM, eCOA/ePRO) using programming and automation. Implement complex data logic, build reporting solutions, and ensure data quality across study systems.

PLSQL, Confluence, Jira, Maven, Docker, DDD, OOP, SOLID, TDD, willingness to develop toward a fullstack developer

Full Stack Developer for AI-powered web applications. Supervise AI code generation, conduct advanced reviews for security and performance, and integrate new web layers with legacy logic using .NET 8, C#, Angular 21, and TypeScript.

Purpose of the job The Senior IT Developer is responsible for designing, developing, maintaining, and ... The developer collaborates with cross-functional teams to deliver high-quality software solutions throughout

Xiliun Biogas is currently looking for a Project Developer to strengthen our Polish team based in Warsaw

Develop a Linux agent, the main endpoint communications hub, focusing on eBPF-based driver development. Responsibilities include system code, data processing, and kernel interactions. Requires expertise in C, Linux kernel internals, and eBPF.

.NET Developer for banking products. Develop and maintain functionality for payment systems and microservices. Requires C# and .NET Core knowledge, SQL, Git, and Agile experience.

Our requirements Experience as an IT Analyst, System Analyst, Service Developer or in a similar role.

Perform hands-on testing of backend systems, including Oracle and Big Data databases, to validate data ... track record of working within an Agile/Scrum framework- mandatoryDemonstrable experience in testing backend

The project involves testing complex backend systems, validating integrations across multiple platforms ... years of experience as a QA Automation Engineer / Test Automation EngineerCommercial experience in backend