Senior Systems Software Engineer (Linux & HPC) - m/f/d at Langdock in Berlin

WHERE EUROPE'S ENTERPRISES ADOPT AI Langdock is the AI platform used by more than 10,000 companies to give employees secure access to leading AI models, build agents, and automate workflows. We have grown past $40M ARR while remaining a small team. We’re building the AI platform for European enterprises while preserving their control over data, model providers, and deployment environments. As a Systems Software Engineer, you build the foundations behind our agent execution, model serving, and shared services. You investigate how systems behave under load and failure, then write the software that makes them faster, safer, and more reliable. This role requires deep Linux knowledge and hands-on experience with high-performance computing, distributed systems, or low-latency networking. You should be comfortable following a problem through application code, runtimes, operating-system behavior, and hardware constraints. You work closely with Platform Engineering: your focus is the underlying execution, isolation, scheduling, and data-handling mechanisms; Platform Engineering owns the surrounding service contracts and long-term lifecycle. You operate what you build and remain accountable for its behavior in production. WHAT YOU MIGHT WORK ON The systems agenda includes: - Secure agent execution. Build runtime and isolation mechanisms for untrusted code using Linux, containers, and…