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Senior Systems Software Engineer (Linux & HPC) - m/f/d

Langdock· Product, Design & Engineering
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Hybrid (Berlin)Full-timePosted 2mo ago

About the role

Senior Systems Software Engineer focused on Linux, HPC, and distributed systems to build the foundations behind agent execution, model serving, and shared services for Langdock’s AI platform. Emphasis on deep Linux knowledge, performance under load, reliability, and production ownership.

Responsibilities

  • Secure agent execution. Build runtime and isolation mechanisms for untrusted code using Linux, containers, and microVMs. Improve startup, persistent filesystems, network restrictions, suspension, and resumption.
  • Inference and HPC. Improve model-serving throughput, latency, accelerator utilization, and cost. Measure bottlenecks across serving software, scheduling, caching, memory, and hardware.
  • Linux performance and resource scheduling. Investigate CPU, memory, filesystem, and network behavior. Improve resource allocation and workload isolation so one customer’s workload cannot degrade another’s.
  • Distributed execution. Keep concurrent, long-running work correct through retries, crashes, and recovery. Define explicit guarantees for ordering, idempotency, and tenant isolation.
  • Storage and data systems. Improve how customer and agent-generated data are stored, versioned, moved, and recovered while preserving consistency and predictable performance.
  • Usage metering. Build accurate accounting for model tokens and compute time despite concurrent reporting, delayed events, duplicate requests, and capacity reservations.

Qualifications

  • Has built systems software. You have personally designed and implemented difficult production systems in areas such as networking, storage, runtimes, databases, distributed computing, or inference.
  • Understands Linux deeply. You can reason about processes, scheduling, virtual memory, I/O, networking, and isolation, and investigate behavior down to the kernel when needed.
  • Measures before optimizing. You form hypotheses, use profiling and tracing, and can explain both the bottleneck and the measured effect of your changes.
  • Reasons carefully about failure. You understand concurrency, recovery, resource contention, and the tradeoffs between performance, reliability, and complexity.
  • Follows technical curiosity. You investigate unfamiliar systems independently and want to understand why they behave as they do.
  • Communicates clearly and takes ownership. You explain tradeoffs, make uncertainty visible, ship changes, and operate them in production.
  • Experience with eBPF, RDMA, confidential computing, accelerator infrastructure, or systems-level open-source projects is particularly relevant (not required for all specialties).

Skills

Required:Linux systems designDistributed systemsPerformance measurement and tuningGo and TypeScript
Nice to have:eBPF/RDMA/accelerator infrastructure (bonus)

Benefits

  • Competitive salary commensurate with experience
  • Hybrid work in Berlin
  • Flexible work hours
  • Health insurance and wellbeing benefits
  • Professional development and learning opportunities
  • Employee stock options or equity (if applicable)
  • Autonomy in squad-based development with ownership of production systems
Last updated Oct 21, 2026. Interested? Apply on the company site.
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The all-in-one AI platform for your company.

Langdock is the enterprise-ready platform to roll out AI to all of your employees. Plus, enabling your developers to build and deploy the most custom AI workflows.

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