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LangChainLangChainSan Francisco, CA

FullStack Engineer, Observability & Evals Platform (LangSmith)

Build features for LangSmith AI observability and evals platform using Go/Python backend and React/TypeScript frontend. Requires 2+ years fullstack experience, database knowledge (Postgres/Redis), and API design skills.

145k – 180k/yr
On-site2+ YOEFullstack Engineering

About the role

Responsibilities

  • Develop and implement key product features working across our entire Go, Python, and Typescript stack
  • Collaborate closely with product and design teams to iterate on new features and enhance the product roadmap
  • Drive aggressive project timelines while ensuring high engineering standards are being met by writing clean, maintainable, and well-tested code

Requirements

  • 2+ years of experience in software engineering working on complex platform products
  • Fullstack engineering experience with Go or Python on the backend and React + Typescript on the frontend
  • Solid understanding of database systems, particularly Postgres and Redis
  • Experience designing and scaling APIs, preferably in high-performance, data-intensive applications
  • Strong ownership and a “get stuff done” mindset - comfortable shipping fast and iterating based on user feedback
  • Strong communicator with the ability to collaborate closely with various internal stakeholders and engage directly with our top-tier customers

Nice-to-Haves

  • Experience with AI/LLM-powered applications, developer tools, or observability platforms

Compensation

  • Annual salary range: $145,000-180,000 USD
  • Meaningful equity, health and dental coverage, flexible vacation, 401(k) plan, life insurance

Skills

GoPythonTypeScriptReactPostgresRedisAPIs

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