LangChain
Full Stack Engineer, Observability & Evals Platform (LangSmith)
LangChain, San Francisco, California, United States, 94199
Full Stack Engineer, Observability & Evals Platform (LangSmith)
Join to apply for the
Full Stack Engineer, Observability & Evals Platform (LangSmith)
role at
LangChain Full Stack Engineer, Observability & Evals Platform (LangSmith)
Join to apply for the
Full Stack Engineer, Observability & Evals Platform (LangSmith)
role at
LangChain Get AI-powered advice on this job and more exclusive features. About LangChain
At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization. About LangChain
At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization.
Founded in 2023, LangChain powers top engineering teams at companies like Replit, Lovable, Clay, Klarna, LinkedIn, and more.
About the role:
In person 5 days/week in San Francisco
We're looking for a Full Stack Engineer to work on LangSmith, our commercial observability and evals platform product. In this role, you'll have the opportunity to build new features and functionality for the platform while working close enterprise customers, developer end-users and internal stakeholders.
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
How To Be Successful In This Role
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 A “get stuff done” attitude - 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 Strong ownership mindset Bonus: Experience with AI/LLM-powered applications, developer tools, or observability platforms
Compensation & Benefits
Competitive salary and equity stake for role and stage of company. Commensurate with experience. Annual salary range: $140,000-175,000 USD
Seniority level
Seniority level Entry level Employment type
Employment type Full-time Job function
Job function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at LangChain by 2x Get notified about new Full Stack Engineer jobs in
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Join to apply for the
Full Stack Engineer, Observability & Evals Platform (LangSmith)
role at
LangChain Full Stack Engineer, Observability & Evals Platform (LangSmith)
Join to apply for the
Full Stack Engineer, Observability & Evals Platform (LangSmith)
role at
LangChain Get AI-powered advice on this job and more exclusive features. About LangChain
At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization. About LangChain
At LangChain, our mission is to make intelligent agents ubiquitous. We help developers build mission-critical AI applications across the entire agent development lifecycle. Our open source frameworks — LangChain and LangGraph — see over 70+ million downloads per month. Developers rely on LangChain for composable integrations and LangGraph for controllable agent orchestration. Our commercial agent platform, consisting of LangSmith and LangGraph Platform, enables teams to build, test, run, and manage agents at scale across their organization.
Founded in 2023, LangChain powers top engineering teams at companies like Replit, Lovable, Clay, Klarna, LinkedIn, and more.
About the role:
In person 5 days/week in San Francisco
We're looking for a Full Stack Engineer to work on LangSmith, our commercial observability and evals platform product. In this role, you'll have the opportunity to build new features and functionality for the platform while working close enterprise customers, developer end-users and internal stakeholders.
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
How To Be Successful In This Role
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 A “get stuff done” attitude - 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 Strong ownership mindset Bonus: Experience with AI/LLM-powered applications, developer tools, or observability platforms
Compensation & Benefits
Competitive salary and equity stake for role and stage of company. Commensurate with experience. Annual salary range: $140,000-175,000 USD
Seniority level
Seniority level Entry level Employment type
Employment type Full-time Job function
Job function Engineering and Information Technology Industries Technology, Information and Internet Referrals increase your chances of interviewing at LangChain by 2x Get notified about new Full Stack Engineer jobs in
San Francisco, CA . San Francisco, CA $160,000.00-$180,000.00 2 days ago San Francisco, CA $130,000.00-$238,000.00 8 hours ago San Francisco, CA $150,000.00-$250,000.00 3 weeks ago Full-Stack Software Engineer (Jr/Mid level)
San Francisco, CA $120,000.00-$180,000.00 1 month ago San Francisco, CA $99,500.00-$200,000.00 2 weeks ago San Francisco, CA $150,000.00-$230,000.00 4 months ago San Francisco, CA $56.25-$137,000.00 3 days ago Software Development Engineer I - Frontend & Mobile
San Francisco, CA $99,500.00-$200,000.00 2 weeks ago San Francisco, CA $180,000.00-$280,000.00 1 day ago Software Engineer Intern, Frontend - Fall 2025
San Francisco, CA $160,000.00-$200,000.00 2 months ago San Francisco, CA $150,000.00-$176,000.00 3 months ago San Francisco, CA $120,000.00-$190,000.00 9 months ago San Francisco, CA $130,000.00-$140,000.00 2 weeks ago Software Engineer, AI Intern (Summer 2026)
Software Engineer, AI Intern (Winter 2026)
San Francisco, CA $125,000.00-$175,000.00 2 months ago San Francisco, CA $130,000.00-$240,000.00 2 weeks ago San Francisco, CA $163,200.00-$223,200.00 2 days ago Software Engineer, Frontend (All Levels)
San Francisco, CA $150,000.00-$220,000.00 2 weeks ago Software Engineer Intern, Frontend - Winter 2025
San Francisco, CA $99,500.00-$200,000.00 2 weeks ago San Francisco, CA $150,000.00-$250,000.00 4 days ago San Francisco, CA $140,000.00-$280,000.00 8 months ago San Francisco, CA $155,000.00-$339,500.00 2 weeks ago We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.
#J-18808-Ljbffr