Senior Software Engineer, Database (SmithDB)
LangChain · San Francisco
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- Company
- LangChain
- Location
- San Francisco
- Employment type
- Full-time
- Salary
- $185,000-$250,000
- Posted
- May 13, 2026
About this job
About the role We're a fast-moving team looking for a systems / database engineer to help design, optimize, and harden our system. Within 6 months, we've gone from idea to production system but there is still lots to build and optimize. You'll be working on execution, storage layout, performance profiling, and scaling to trillions of traces. This role is based in San Francisco. What you'll do - Engineer performant Rust code for ingestion and query execution - Optimize for cost and speed, heavily utilizing memory and CPU profiling - Integrate tightly with cloud object stores (S3/GCS/Azure Blob) - Deploy our distributed database services on Kubernetes (multi-tenant, high throughput, low latency) - Contribute to observability for the storage engine itself (metrics, tracing, debug tooling)…
This is a short summary.
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