Senior Software Engineer, Database
LangChainLLM Orchestration company
San Francisco, United States$175,000 - $240,000Senior
Sequoia Capital
Benchmark
IVP
Amplify Partners
CapitalG
Sapphire Ventures
Software Engineering
About the role
TL;DR
Optimize and scale LangChain's internal database system for AI observability.
- •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.
- •Key Responsibilities 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) Requirements 5+ years in systems/database engineering with strong experience in a systems programming language (Rust, C++).
- •Rust strongly preferred, as it is the language we use.
- •Knowledge of database internals is a plus: query engines, storage systems, indexing, and compaction Proficiency in systems performance analysis: memory allocation, CPU hotspots, lock contention, async runtimes.
- •Familiarity with similar query execution engines is a plus Experience with Kubernetes, distributed systems, and cloud object storage is a plus.
- •Strong fundamentals in networking, OS concepts, and systems debugging.
Required skills
RustKubernetesS3
Domain expertise
ai
Benefits & perks
medical, dental, and vision coverage, flexible vacation, 401(k) plan, meals on in-office days in the US
Tech stack
RustKubernetesS3