Senior Fullstack Engineer, AI Observability & Evals Platform

LangChain · San Francisco

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Company
LangChain
Location
San Francisco
Employment type
Full-time
Salary
$175,000-$240,000
Posted
September 12, 2026

About this job

ABOUT THE ROLE This role is onsite 5 days/week in Boston, MA We're looking for a Senior Fullstack Engineer to work on LangSmith. In this role, you'll have the opportunity to shape the technical direction of our platform while working closely with our enterprise customers, developer end-users, and cross functional internal stakeholders. WHAT YOU WILL DO - Lead the technical architecture and implementation of key product features for LangSmith, working across our entire Go, Python, and Typescript stack. - Collaborate closely with product and design teams to iterate on new features. - Help drive aggressive project timelines while ensuring high engineering standards are being met. - Lead by example in writing clean, maintainable, and well-tested code.…

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