FullStack Engineer, AI Observability & Evals Platform (LangSmith)
3 days ago- Role family
- Software Engineering
- Location
- San Francisco, CA, Boston, MA, New York, NY
- Salary
- $145k–$180k
Explore LangChain careers: 96 open roles hiring now. Find jobs at LangChain with direct links to apply. Funding stage: Series B. Headcount: 201-500. Includes the official careers page link. LangChain provides open-source frameworks and a managed platform (LangSmith, LangGraph) for building, observing, and deploying LLM-powered applications and agents. Its composable, modular components let developers integrate large language models into production workflows. Backed by Sequoia and IVP, LangChain is the leading developer framework for agentic AI.
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LangChain is a Series B stage AI startup, founded in 2022, with $160M in total disclosed funding. Its most recent round was a $125M Series B in Oct 2025. It currently lists 96 open roles across San Francisco, CA, US Remote, Chicago, IL, +26 more. Source: Fast AI Jobs company dataset, updated Oct 2026.
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San Francisco, CA · Sales · FullTime
US Remote · Engineering · FullTime
San Francisco, CA, Chicago, IL, Austin, TX, +8 more · Customer Engineering · FullTime
US Remote · Engineering · FullTime
New York, NY, Atlanta, GA, Nashville, TN, +3 more · Customer Engineering · FullTime
San Francisco, CA, Boston, MA, New York, NY · Engineering · FullTime
San Francisco, CA, Boston, MA, New York, NY · Engineering · FullTime
San Francisco, CA, Boston, MA, New York, NY · Engineering · FullTime
Company profile last updated on Oct 9, 2026.
LangChain jobs and careers: 96 open roles currently listed here. Review hiring details and apply via the official career page. Official careers page
LangChain is an developer tools company. LangChain provides open-source frameworks and a managed platform (LangSmith, LangGraph) for building, observing, and deploying LLM-powered applications and agents. Its composable, modular components let developers integrate large language models into production workflows. Backed by Sequoia and IVP, LangChain is the leading developer framework for agentic AI.
Open positions
96 jobs · Newest first
Candidate questions
LangChain provides open-source frameworks and a managed platform (LangSmith, LangGraph) for building, observing, and deploying LLM-powered applications and agents. Its composable, modular components let developers integrate large language models into production workflows. Backed by Sequoia and IVP, LangChain is the leading developer framework for agentic AI.
Yes. LangChain is hiring and currently has 96 open roles listed on Fast AI Startup Jobs, each with a direct link to the official application page.
LangChain is currently hiring for roles such as Enterprise Account Executive (San Francisco Bay Area), Senior Frontend Engineer, AI Observability & Evals Platform, Senior Technical Support Engineer, Analytics Engineer, Account Manager, Renewals & Expansion (East Coast), FullStack Engineer, AI Observability & Evals Platform (LangSmith), and more. See the full list of jobs at LangChain above.
LangChain is hiring across San Francisco, CA, US Remote, San Francisco, CA, Chicago, IL, Austin, TX, +8 more, New York, NY, Atlanta, GA, Nashville, TN, +3 more, San Francisco, CA, Boston, MA, New York, NY, and other locations based on its currently open roles.
LangChain has raised $160M in total. The latest known stage is Series B.
LangChain reports an employee count of 201-500.
Company context
LangChain is a Series B stage AI startup, founded in 2022, with $160M in total disclosed funding. Its most recent round was a $125M Series B in Oct 2025. It currently lists 96 open roles across San Francisco, CA, US Remote, Chicago, IL, +26 more. Source: Fast AI Jobs company dataset, updated Oct 2026.