Software Engineering Manager, Database (SmithDB)

LangChain
San Francisco
Workplace: OnsiteFull timeUSD 215,000 - 260,000 annuallyFunction: Software EngineeringExperience: 7+ yearsSkills: ["Rust","Kubernetes","Profiling","Observability","Cloud storage (S3/GCS/Azure)","Tokio"]

Hands-on Engineering Manager for LangChain's SmithDB, leading a small systems team building a high-performance Rust-based storage and query layer. You will write production code, shape architecture for storage, compaction, and indexing, optimize performance, and deploy multi-tenant SmithDB services on Kubernetes while mentoring engineers and guiding the technical roadmap. You'll collaborate with LangSmith product teams and integrate with S3/GCS/Azure Blob, contributing to observability and data at rest/in flight.

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FursaFursa
LangChain
LangChain
2 months ago

Software Engineering Manager, Database (SmithDB)

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Source: Company careers pageValidated by: Fursa AI
Last checked: 7 hours agoStatus: Live

Job Summary

Hands-on Engineering Manager for LangChain's SmithDB, leading a small systems team building a high-performance Rust-based storage and query layer. You will write production code, shape architecture for storage, compaction, and indexing, optimize performance, and deploy multi-tenant SmithDB services on Kubernetes while mentoring engineers and guiding the technical roadmap. You'll collaborate with LangSmith product teams and integrate with S3/GCS/Azure Blob, contributing to observability and data at rest/in flight.
Location: San Francisco
Workplace: Onsite
Employment Type: Full time
Job Function: Software Engineering
Seniority: Manager level

Key Responsibilities

  • •Write and review production Rust code across ingestion, query execution, and storage layers
  • •Lead architectural decisions on storage format, compaction, indexing, and query planning
  • •Drive performance investigations using memory and CPU profiling tools; own the path from profiling to shipped fix
  • •Design and harden the distributed deployment of SmithDB services on Kubernetes (multi-tenant, high-throughput, low-latency)
  • •Contribute to cloud object store integrations (S3, GCS, Azure Blob) and set the standard for how SmithDB manages data at rest and in flight
  • •Build and maintain observability for the engine itself: metrics, tracing, debug tooling
  • •Manage a small but growing team of systems engineers: set goals, run 1:1s, provide technical mentorship, and grow careers
  • •Own the SmithDB technical roadmap in partnership with LangSmith product and engineering leadership
  • •Communicate progress, risks, and tradeoffs clearly to the broader organization: you write concise, decision-ready updates

Pay and Benefits

Salary: USD 215,000 - 260,000 annually
Perks:MedicalDentalVision401k

Key Requirements

  • •7+ years in systems or database engineering, with at least 2 years in a technical lead or engineering management role
  • •Production Rust experience — you can write it, review it, and have opinions on how to structure it at scale
  • •Deep understanding of database or storage engine internals: query execution, storage layouts, indexing, compaction
  • •Proficiency in systems performance analysis: memory allocators, CPU hotspots, lock contention, async runtimes (Tokio)
  • •Experience deploying and operating distributed services on Kubernetes in a production, multi-tenant environment
Experience:7+ yearsSoftwareDatabasesDistributed systemsRustCloud
Skills:RustKubernetesProfilingObservabilityCloud storage (S3/GCS/Azure)Tokio
Tech Stack:RustKubernetesTokioS3GCSAzure Blob

Company Brief

LangChain
Provides an open-source framework and commercial platform (LangSmith/LangGraph) for building, testing, monitoring, and deploying LLM-powered applications and agentic AI for developers and enterprises.
Industry: Developer Tools
Company Size: Medium (51 to 250 employees)
Revenue: USD 10M to 25M
Growth: Scaleup
Valuation: Unicorn (USD 1B+)
Funding: Series B
Headquarters: San Francisco, United States
Founded: 2022
WebsiteLinkedIn