6 backend developer English-speaking jobs in Cologne

scalability and long-term maintainability Collaboration Work closely with product managers, designers, and backend ... You'll be expected to bring strong opinions on architecture, performance, and developer experience, helping ... About the Role: As a Senior Android Developer (m/f/d), you will take full ownership of our Android application

Shape the architectural foundation of Redcare Pharmacy's mobile platform as a Senior iOS Engineer. Drive modularization, define technical standards, and improve CI/CD reliability. You'll have expertise in Swift, SwiftUI, MVVM, and experience with large-scale production apps.

You'll work across the stack, from backend services to customer-facing interfaces, with a strong focus

Champion developer experience by building intuitive tooling, documentation, and self-service workflows ... and test engineers to integrate new components smoothly, resolve build and linking issues, and keep developer ... performance through caching strategies, parallelization, dependency analysis, and tooling that minimizes developer

Computer Scientist / IT Specialist (m/f/d) as a C# Software Developer for CAD Applications Become ... 1, 2026, we are looking to strengthen our team in Troisdorf near Cologne/Bonn with a C# Software Developer

your daily work You are business-fluent in English (Level C1) You have experience as a software developer