LangChain
Software Engineering Manager, Database (SmithDB)
$240K–$300K
San Francisco, CA · On-site · Manager · Full-time · Posted Oct 5, 2026
- Experience
- 7+ years in systems or database engineering, including at least 2 years in a technical lead or engineering management role.
About the job
Leads the SmithDB database team while writing production code and guiding the architecture, performance, and operation of its storage and query systems.
What you'll do
- Write and review Rust code and make architectural decisions across storage, ingestion, and query execution.
- Investigate performance, operate distributed services on Kubernetes, and build cloud object-store integrations and engine observability.
- Manage and mentor systems engineers, own the technical roadmap, and coordinate with LangSmith leadership.
What they ask for
- Production Rust experience.
- Deep knowledge of database or storage-engine internals, including query execution, storage layouts, indexing, and compaction.
- Experience operating distributed services on Kubernetes in a production, multi-tenant environment.
- Proficiency in systems performance analysis and familiarity with cloud object storage.
Nice to have
- Experience with columnar storage formats, OLAP query engines, or time-series stores.
- Background in observability infrastructure or tracing pipelines; experience scaling systems to hundreds of billions or trillions of records.
Pay
$240,000-$300,000 USD (base salary)
Tools
Rust, Kubernetes, S3, GCS, Azure Blob, Tokio, Parquet, Arrow
Model-written summary · the original posting is authoritative