Senior Fullstack Engineer, AI Observability & Evals Platform
Core
Designing and implementing key features for LangSmith, an observability and evaluation platform for AI agents.
Role type
Senior Fullstack Engineer (Platform)
Builds
LangSmith commercial product (observability, evaluation, deployment for AI agents)
Domain
AI/LLM infrastructure, developer tools, observability
Deliverable
production ML models | product features
Required skills
Go, Python, React, TypeScript, Postgres, Redis, API design, scaling high-performance systems
Preferred skills
AI/LLM-powered applications, developer tools, observability platforms
Responsibilities
Lead technical architecture and implementation of key product features; Collaborate with product and design teams to iterate on new features; Mentor junior team members; Write clean, maintainable, and well-tested code
Seniority
Senior, hands-on IC with mentorship
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