Full-Stack Engineer, AI Platform & Observability

Langchain; Town of Boston (NY); On-site; USD 145,000 - 180,000; Full time

Benefits offered by this job

Medical, dental, and vision

401(k) plan

In-office meals

Flexible vacation

Job summary

LangChain is seeking a Fullstack Engineer to advance LangSmith, our AI observability and evals platform. You will build new features across Go, Python, and Typescript, engaging with enterprise customers and developers.

You will collaborate with product and design teams, own end-to-end features, and maintain high quality, scalable APIs. Prior experience with modern stacks and a customer-focused mindset is essential. This role offers impact across the product lifecycle and a fast-growing team.

Qualifications

• 2+ years of software engineering with complex platform products.
• Fullstack experience: Go or Python on backend and React + Typescript on frontend.
• Strong DB knowledge: Postgres and Redis.
• Experience designing and scaling APIs; ownership and delivery focus.

Responsibilities

• Develop and implement key features across Go, Python, and TypeScript stack.
• Collaborate with product and design to refine features and roadmap.
• Maintain high engineering standards with clean, well-tested code and timely delivery.

Skills

Go

Python

React

Typescript

PostgreSQL

Redis

APIs design

Ownership mindset

Communication

Job description

LangChain is seeking a Fullstack Engineer to advance LangSmith, our AI observability and evals platform. You will build new features across Go, Python, and Typescript, engaging with enterprise customers and developers.

You will collaborate with product and design teams, own end-to-end features, and maintain high quality, scalable APIs. Prior experience with modern stacks and a customer-focused mindset is essential. This role offers impact across the product lifecycle and a fast-growing team.