Distributed Systems Engineer at Windmill

Work on Windmill's Rust backend - the execution engine, workers, language runtimes, API layer, and infrastructure that powers thousands of production deployments. Execution engine : scheduling, job queues, worker orchestration, flow execution with branching, parallelism, retries, and error handling. Language runtimes : maintain and extend sandboxed runtimes for Python, TypeScript, Go, Bash, SQL, and more. Performance & reliability : profiling, optimization, resource management. Our users run mission-critical workloads - correctness and uptime matter. Infrastructure : PostgreSQL schema design, caching, networking, deployment tooling. 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 skill