26 backend developer English-speaking jobs in Kielce

We are currently looking for a Backend developer to join the product development team and work on the

Implement secure APIs and backend systems in NodeJS to facilitate mobile app development, including API ... requirements-expected : 10+ years of experience as a full-stack developer with strong proficiency in

backend systems that power our innovative products. ... As a Lead Backend Engineer, you’ll design, develop, and maintain scalable, secure, and high-performing ... transactions booking, crypto liquidity) Our technology stack is based predominantly on Java 21 on the backend ... TDD, DDD and continuous integration & delivery What you'll need Minimum 7+ years of experience in Backend

This isn’t just a UI-heavy role with a backend tacked on. ... We’re looking for a Full-Stack Engineer who moves confidently across both frontend and backend — fluent ... You’ll contribute meaningfully to frontend architecture and performance, while also digging into backend

_.NET Developer Kielce _What will you do?

As our worker, you will join a community of over 700 Java Developers at Sii. Our specialists are involved in building a portal for finding and tracking parcels in real-time. We are also involved in developing a global digital identity validation and authentication service to provide real-time ID control and prevent impersonation as part of the digital journey. We have partnerships with AWS and Adobe.

Responsibilities : Getting to know the tools / technologies needed to meet the requirements Analysis and implementation of solutions based on the provided requirements Testing source code and debugging Active participation in code review _Who are we looking for?

As a ServiceNow Developer, you will join the team working on many projects utilizing various modules ... less-experienced team members requirements-expected : Minimum 4 years of experience as a ServiceNow Developer

Then join us as a JavaScript Test Developer for our newest Hi-Tech project.

Requirements : At least 5 years of proven experience as a C# developer Strong experience with .NET Framework

We are looking for a Regular/Senior Java Developer with Adobe Experience Manager knowledge, to join our

You have the opportunity to be part of a community of over 200 C++ Developers at Sii. Our specialists have the chance to work with the latest technology stack (including C++ 20) for the IoT, automotive, and medical industries. We are developing systems for driver health monitoring, car infotainment systems, ship engine control systems, and blockchain.

They bring strong experience in developer tooling and maintain high engineering standards across a distributed ... about-project : The project builds a multi-platform desktop application that helps large organizations manage developer ... and shared development practices Contribute to building a platform that helps organizations manage developer

Responsibilities: Getting to know the tools / technologies needed to meet the requirements; Analysis and implementation of solutions based on the provided requirements; Testing source code and debugging; Active participation in code review.

Responsibilities : Design, write, test, and optimize Assembler code for mainframe systems. Maintain and enhance legacy Assembler applications to meet business needs. Collaborate with teams to integrate Assembler components with COBOL/Java applications. Optimize system performance using tools like IBM RMF and OMEGAMON. Troubleshoot and resolve complex system issues using advanced debugging tools.

requirements-expected : 3+ years of experience in backend, devops, or platform engineering Some experience

They collaborate closely with external contributors and users to deliver stable, high-quality developer ... tooling support Communicate clearly in English at B2 level or higher Show enthusiasm for improving developer

They focus on developer tooling and build system integration, collaborating across locations to deliver ... responsibilities : Build and enhance a web application that manages developer tooling for CI/CD pipelines ... delivering accurate test reporting, efficient issue analysis, and customizable build pipeline recipes within developer

Engineer (Senior) Required skills: Supporting JVM-based apps - ADVANCED Problem-solving - ADVANCED Developer ... software-support-engineer-senior/ Software Support Engineer (Regular) Required skills: Problem-solving - ADVANCED Developer

long-term goals in mind Collaborate with external teams to align tooling with broader workflows Extend developer