Senior Fullstack Engineer, AI Observability & Evals - SF

Fdetimes; San Francisco (CA); On-site; USD 175,000 - 240,000; Full time

Benefits offered by this job

Medical coverage

Dental coverage

Vision coverage

401(k) plan

In-office meals

Job summary

LangChain is seeking a Senior Fullstack Engineer for LangSmith, our observability and evals platform, in San Francisco. You will shape the technical direction while collaborating with enterprise customers and internal stakeholders.

You will work across Go, Python, and TypeScript stacks, partner with product and design, and mentor others to maintain high engineering standards. This role requires 5+ years of experience, Go or Python backend, React/TypeScript frontend, and a passion for shipping

Qualifications

• 5+ years of software engineering on complex platform products.

Responsibilities

• Lead the technical architecture and implementation of key features across Go, Python, and TypeScript.
• Collaborate with product and design to iterate on new features.
• Mentor junior engineers and drive aggressive timelines.
• Write clean, maintainable, well-tested code.

Skills

Fullstack engineering

Go / Python backend

React + TypeScript frontend

Postgres and Redis

API design

Delivery mindset

Stakeholder communication

Ownership mindset

AI/LLM features

Job description

LangChain is seeking a Senior Fullstack Engineer for LangSmith, our observability and evals platform, in San Francisco. You will shape the technical direction while collaborating with enterprise customers and internal stakeholders.

You will work across Go, Python, and TypeScript stacks, partner with product and design, and mentor others to maintain high engineering standards. This role requires 5+ years of experience, Go or Python backend, React/TypeScript frontend, and a passion for shipping