LangChain

Senior Fullstack Engineer, AI Observability & Evals Platform

LangChain
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3 hours ago
Boston, MA, USA or New York, NY, USASenior
H1B sponsor

Base Salary

$175k - $240k/yr

Responsibilities

  • Lead the technical architecture and implementation of key LangSmith product features across the Go, Python, and TypeScript stack.
  • Collaborate with product and design teams to iterate on new features.
  • Drive aggressive project timelines while maintaining high engineering standards.
  • Write clean, maintainable, and well-tested code.
  • Engage with enterprise customers, developer end-users, and cross-functional internal stakeholders.

Requirements

  • At least 5 years of software engineering experience working on complex platform products.
  • Full-stack engineering experience with Go or Python on the backend and React with TypeScript on the frontend.
  • Strong understanding of database systems, particularly Postgres and Redis.
  • Experience designing and scaling APIs, preferably in high-performance, data-intensive applications.
  • Ability to ship quickly, iterate based on user feedback, communicate effectively, collaborate with stakeholders, and take ownership.
  • Experience with AI/LLM-powered applications, developer tools, or observability platforms is a bonus.

Benefits

  • Medical, dental, and vision coverage.
  • Flexible vacation.
  • 401(k) plan.
  • Meals on in-office days in the US.
  • Onsite work five days per week in Boston, MA.
LangChain

About LangChain

201-500 employees

LangChain builds open-source frameworks and a commercial platform for developing, evaluating, deploying, and operating LLM-powered agents and applications. Its LangSmith suite provides observability, testing, deployment, and governance for enterprise AI workloads; customers include Nvidia, LinkedIn, Workday, and Bridgewater. Privately held and headquartered in San Francisco, the company was founded in 2022.

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