Distributed Systems Engineer

Il y a 2 jours

Paris, Île-de-France Windmill Temps plein 60 000 € - 90 000 € Contrat

Work on Windmill's Rust backend - the execution engine, workers, language runtimes, API layer, and infrastructure that powers thousands of production deployments.

Who We’re Looking For

This is a senior role. We’re looking for someone who has operated distributed systems at scale and can teach us from day one - showing us PostgreSQL patterns, distributed systems techniques, and architectural improvements we haven’t considered yet.

  • Proven experience building and operating distributed systems at scale - not theoretical, you’ve done it in production
  • Deep PostgreSQL expertise - query optimization, schema design, concurrency control, partitioning, replication. You know what breaks at scale and how to fix it.
  • Strong systems programming skills - Rust experience strongly preferred, otherwise C/C++ with willingness to switch
  • You bring opinions and techniques from previous infrastructure work that will make Windmill better immediately
  • You enjoy hard infrastructure problems and care about correctness

Example projects in your first 3 months

  • Redesign the job queue to handle bursty workloads with thousands of concurrent jobs without degrading scheduling latency
  • Implement a new worker orchestration strategy that improves resource utilization across heterogeneous deployments (2 to 600 workers)
  • Optimize critical PostgreSQL queries and schema for customers with millions of completed jobs - partitioning, indexing, vacuum tuning
  • Add a new language runtime (e.g., Java, C#) with proper sandboxing, dependency management, and execution feedback
  • Build observability tooling - distributed tracing across the flow execution engine to diagnose slow or failing steps in production

Offer details

Location: Paris hybrid (~3 days/week) or remote within France

Contract: CDI (permanent)

Salary: €60K–€90K gross + top of market for level + 20% bonus on collective milestones