617 backend developer English-speaking jobs in Kraków

Senior Software Developer to design, develop, and support latency-sensitive electronic trading applications for Derivatives Principal Flow Trading. Requires 8+ years of Java expertise in high-performance, low-latency systems.

Project Description We are looking for an experienced Python Developer to join a forward-thinking team

Senior Scala Developer to build integrated software for intelligent Fleet De-Carbonization. Requires strong Scala, Akka, Play, and cloud experience, focusing on scalable microservices development.

We are seeking a strong Software Developer to join the Cash Analytics team, responsible for building

You'll peek at the backend contracts, ask questions about the ML models, and dive into analytics to understand

Join us in our exciting quest to build a future home.About the role:We are looking for an RPA Developer

feedback, and technical guidance Identify system-level improvements and lead initiatives to enhance developer ... observability across the engineering organization Drive adoption of AI/ML capabilities where they improve developer ... supporting technical growth within a team Preferred Experience implementing AI/ML tools or practices within developer

As a Performance Analytics Developer, you will be responsible for designing, configuring, and implementing

diverse technologies like Kotlin, Jetpack Compose, Android media frameworks for video streaming, and backend ... tech stack includes Kotlin, Jetpack Compose, Android SDK, Coroutines/Flow, and integration with our backend ... from requirements development to deployment, with lots of cross‑team collaboration with iOS engineers, backend ... SDK, and modern architecture patterns (MVVM, MVI, MVP)Experience with RESTful APIs, JSON parsing, and backend

Senior Software Engineer will design, build, and maintain highly scalable services processing large volumes of customer data. Responsibilities include developing Java solutions, working with Azure and Terraform, implementing CI/CD best practices, and mentoring fellow engineers. Requires 6+ years of Java experience, experience with Agile methodologies, and experience with cloud solutions and system design.

talented professionals to join our team across a wide range of technology areas, including Frontend, Backend

talented professionals to join our team across a wide range of technology areas, including Frontend, Backend

talented professionals to join our team across a wide range of technology areas, including Frontend, Backend

talented professionals to join our team across a wide range of technology areas, including Frontend, Backend

product from the ground up.You’ll play a key role in designing and developing high-scale, event-driven backend ... ambiguity, learns quickly, and enjoys shaping architecture early on.ResponsibilitiesDevelop and maintain backend

Partner across our backend and frontend stacks with backend, mobile, web, and content teams, and mentor ... Standardize i18n frameworks and libraries across frontend and backend systems for correct handling of

About the role We’re looking for a passionate and experienced Senior Platform Engineer to join our Developer ... A holistic mindset — you care about reliability, performance, developer experience, and long-term impact

, and support scalable, high-availability applications in production environmentsStrong passion for backend

Collaborate deeply with Data Science and Backend Engineers to ensure seamless data flow and end‑to‑end ... Familiarity with backend frameworks such as Ruby on Rails or Angular and databases like Clickhouse, Mongo

We're looking for a passionate Software Developer with strong Can-Do attitude who: has strong sense