L
$230,000 – $270,000
Listed on LangChain’s own careers site. You apply with them directly — we never stand between you and the employer.
What this role is
Principal-level engineer leading technical direction across LangChain's observability and evaluation platform. Suited for someone with 10+ years building complex production systems who thrives at the intersection of hands-on architecture work and mentoring engineers at scale.
Our summary, not LangChain’s wording. The full posting is on their site.
Skills this role names
Log in to see which of these are already on your profile.
What they ask for
Required
- 10+ years professional experience in backend or fullstack engineering on complex production systems
- Strong programming across backend (Python and/or Go) and frontend (TypeScript, React, or similar)
- Demonstrated experience making and owning architectural decisions with tradeoffs around data systems, APIs, and service reliability
- Experience with high-throughput or mission-critical systems and optimization for performance and reliability
- Track record of taking systems from prototype to production and operating them at scale
- Demonstrated mentoring of engineers and raising technical quality of teams
- Strong cross-functional communication and collaboration with product, design, and engineering leadership
- Customer-centric ownership mentality
Nice to have
- Experience with database systems (Postgres, Redis, ClickHouse)
- Experience with cloud platforms (AWS, GCP, Azure)
- Familiarity with observability tooling, evaluation frameworks, or AI/LLM infrastructure