Latest AI JobsBrowse Jobs
LangChain logo

FullStack Engineer, AI Observability & Evals Platform (LangSmith)

LangChainSan Francisco, CAEngineering
Apply on company site
Salary
$145K - $180K USD
Job type
Full-time
Posted
15 Aug 2025
Status
Open · checked 7d ago

About this role

Role Overview

LangChain is hiring a FullStack Engineer to join the LangSmith AI observability and evaluations platform team in San Francisco, CA. This full-time position suits software professionals with at least two years of experience who want to build developer tools and scalable systems for AI agents.

Key Responsibilities

Design, build, and deploy new product features across the full technology stack using Go, Python, and TypeScript.
Partner with design and product groups to refine functionality and advance the platform roadmap.
Execute rapid project schedules while maintaining rigorous code quality through clean and tested programming practices.

Requirements

Bring two or more years of professional software engineering experience focusing on complex platform systems.
Demonstrate full-stack capabilities utilizing backend technologies like Go or Python alongside frontend frameworks such as React and TypeScript.
Possess a strong grasp of database technologies, specifically Redis and Postgres.
Show proven ability in building and scaling APIs for intensive, high-performance data environments.
Exhibit strong ownership, rapid iteration habits, and excellent communication skills for cross-functional teamwork and customer engagement.

Nice to Have

Background working with LLM-powered applications, developer tools, or specialized observability platforms.

Skills and Tools

Python
React
TypeScript
Go
Postgres
Redis
LLMs
LangChain

Salary and Benefits

Annual base salary range from $145,000 to $180,000 USD.
Comprehensive health coverage including medical, dental, and vision insurance.
Flexible vacation policy and a 401(k) retirement plan.
Provided meals on in-office days for United States personnel, alongside meaningful equity and perks.

About the Company

LangChain provides the foundational tools and commercial platforms needed to build, evaluate, deploy, and operate intelligent agents at scale. Backed by $125M in Series B funding from major venture capital firms, the organization serves millions of monthly open-source downloads and thousands of enterprise customers, including multiple Fortune 500 companies.

How to Apply

Interested candidates should visit the official company careers page to submit their application for this role.

Skills and tech stack

PythonReactTypeScriptLLMLangChain

Questions candidates ask

What is the location of the FullStack Engineer position?

The job is located in San Francisco, California, and is an on-site role.

What experience level is required for this job?

Applicants need two or more years of software engineering experience working on complex platform products.

What programming languages and frameworks are used in this role?

The engineering stack utilizes Go, Python, React, and TypeScript.

What is the salary range for this role?

The annual base salary ranges from $145,000 to $180,000 USD, supplemented by equity, benefits, and perks.

How can I apply for this position?

Candidates should apply directly through the official LangChain careers website.

Ready to apply?

The application is on the official LangChain careers page.

Apply on company site