61 Engineer English-speaking jobs in Cologne

Lead Full-Stack Engineer develops and maintains complex web applications using Node.js and Vue.js. Responsibilities include performance optimization, building scalable microservices, and providing technical mentorship. Requires 9+ years of experience.

About you: Experience as a DevSecOps / Cloud Security Engineer (or DevOps with strong security focus)

Senior AI Compiler Engineer to design and implement new compiler components building on MLIR. Requires 5+ years of compiler experience, expert C++/Python skills, and a drive to solve complex problems.

Own and evolve the Bazel-based build system for an ML compiler platform. Design Python packaging pipelines and optimize CI/CD infrastructure. Requires Python, C/C++, and strong experience with Bazel.

Junior AI Compiler Engineer to design and implement new compiler components building on MLIR. Requires a degree in CS/EE, C++/Python skills, and understanding of software engineering principles.

Independent Working: You work independently, even when there is no second engineer in the room and the

Senior DevOps/Cloud Engineer to manage AWS infrastructure, EKS, and CI/CD pipelines. Responsibilities include maintaining SaaS and on-premise deployments, driving GitOps, and enhancing platform automation and security.

About the role: As Senior Frontend Engineer, Retail Media / AdTech Solutions, you will be shaping and

You have 5+ years of experience as a Cloud Native Software Engineer or Data Engineer.

Key duties and responsibilities Under the responsibility of the Finance Lead Data Engineer, your mission

About the role: As a Senior Fullstack Engineer (m/f/d) in the Retail Media Ad Solutions area, you will

Job Description About your tasks: Build and operate containerized services using orchestration platforms such as Kubernetes. Troubleshoot production issues and improve the reliability, performance, and cost-efficiency of ML/AI services. Develop maintainable and well-tested Python code for production services, automation, and internal tooling.

Now we need an experienced integration engineer who is excited to build it.

About the role: As a Senior iOS Engineer, you will play a key role in building the next generation of

QualificationsAbout you: You bring 8–10+ years of experience as a Data Analyst, Analytics Engineer, or

QualificationsAbout you:5+ years of experience as a Data Analyst, Analytics Engineer, or in a similar

You will bridge the gap between complex machine learning and a stressed human engineer at 3:00 AM.

Working Student or Intern to build features for a mission-critical SaaS platform. Ship end-to-end code using React/TypeScript or backend languages like Java/Rust. Requires CS fundamentals and a builder mentality.

Why you’ll love working here: Impactful Career Growth: Evolve into a Technical Lead / Lead Engineer role

Join the red team as a Working Student or Intern to test ilert's SaaS platform. Tasks include hunting vulnerabilities in apps/APIs, automating security checks, and testing AI features. Requires curiosity, basic web/scripting knowledge, and fluent English.