Skip to content
LangChainLangChainSan Francisco, CA

JavaScript Engineer (Open Source Team)

Maintains and improves LangChain JavaScript packages, enhances documentation, supports open-source community, and builds example AI applications. Requires 3+ years software engineering experience and strong communication skills.

150k – 225k/yr
On-site3+ YOEFrontend Engineering

About the role

What You'll Do

  • Improve the core abstractions and runtime of the LangChain and LangGraph JavaScript packages
  • Improve documentation across the LangChain ecosystem
  • Answer user questions and resolve issues from the developer community
  • Use LangChain to build example applications that demonstrate best practices for developers building AI systems

What You'll Bring

  • 3+ years of software engineering or applied machine learning experience
  • A background in software engineering
  • Strong written and oral communication skills, with the ability to explain technical concepts clearly and concisely to both technical and non-technical stakeholders
  • The ability to thrive in a fast-moving environment and view unstructured environments as an opportunity to identify the most impactful work and help define the future success of the company
  • An ownership-minded approach to work, with the ability to manage your work efficiently and effectively without the need for close supervision

Compensation & Benefits

  • Annual salary range: $150,000- $225,000
  • Competitive compensation including base salary, meaningful equity
  • Benefits such as health and dental coverage, flexible vacation, a 401(k) plan, and life insurance

Skills

JavaScriptLangChainLangGraphTypeScriptNode.jsAIMachine LearningDocumentationOpen Source

Similar roles

Frontend Engineering jobs
Givebutter

Design Engineer

GivebutterAustin, TX +9

Build high-craft marketing experiences on Givebutter's Astro site, turning Figma prototypes into performant, animated, data-driven web pages that feel as alive as the product.

150k – 170k/yr
Remote4+ YOEFrontend Engineering
Sfcompute

Software Engineer - Product

SfcomputeSan Francisco, CA

Builds user-facing features for public cloud provisioning, compute markets, and AI inference products using React and Next.js. Collaborates cross-functionally to deliver exceptional developer experiences in a fast-paced environment.

150k – 220k/yr
On-siteFrontend Engineering
Assembled

Software Engineer, Design Systems

AssembledSan Francisco, CA +1

Software Engineer owning the technical vision and architecture of Assembled's new design system. Lead component APIs, token architecture, AI-assisted UI generation workflows, frontend modernization, and best practices across teams. Requires 3+ years frontend experience with design system ownership.

160k – 270k/yr
On-site3+ YOEFrontend Engineering
Bretton AI

Founding Design Engineer

Bretton AISan Francisco, CA

Founding Design Engineer owns the design system in code, builds production front-end components using React and TypeScript, ensures performance/accessibility, and makes AI agent behaviors legible for compliance users. Partners with designers and engineers on fintech automation interfaces.

160k – 220k/yr
On-siteFrontend Engineering
Atlas

Web Engineer

AtlasSan Francisco, CA +1

Builds fast, intuitive customer-facing web interfaces for a premium fintech charge card, integrating with APIs and shipping 0-1 features. Requires 3+ years frontend experience with TypeScript, Svelte/React, and strong product taste.

160k – 185k/yr
Hybrid3+ YOEFrontend Engineering