APIs underpin the internet but are still painful to work with. They are often untyped, unstandardized, and out-of-sync across multiple sources of truth.

Fern enables businesses to offer “Stripe-level” SDKs (client libraries) and Docs for their REST API. Inspired by internal tooling we saw at AWS and Palantir, we’re building Fern to let every engineering team offer easy-to-use and well-documented APIs.

Founded in 2022, we’re less than 10 people, building open source, and backed by YCombinator. We work together in our office in the Williamsburg neighborhood of Brooklyn, NY. Our customers include Cohere, ElevenLabs, Webflow, and Merge.dev.

As a small team, we’re all generalists, constantly pick up new challenges, and interface with customers regularly. Regarding product and code, we’re looking to work with experienced people who can pick a problem and solve it. We don’t expect you to have a background in all the tools we use, but we expect a background working with TypeScript and at least one other language.

What you’ll do

• Lead the development of AI-enabled features. Customers are asking for experiences that can only be offered through GenAI. Build net new functionality
• Build our team. We’re growing, and you will work directly with the CEO and CTO to bring in talented AI engineers to collaborate with.

What you’ll bring

• 4+ years of professional backend or full-stack development
• Significant experience working with TypeScript and one other programming language
• Experience developing, deploying, and monitoring an AI product or feature in production
• (Nice to have) You've worked in a high-growth SaaS company

What we offer

• Ownership of projects end-to-end while wearing multiple hats
• First-hand experience building an early-stage startup
• A salary of $168,000 to $192,000 and equity
• Living proximity bonus of $18,000 per year if you choose to live near the office
• Meals (breakfast, lunch, and dinner) at the office
• Health, dental, and vision insurance
• Unlimited vacation

Our tech stack

• NextJS + Vercel (Frontend)
• Fern (API)
• Microservices: Express (NodeJs), FastAPI (Python)
• Postgres DB + Prisma ORM
• AWS (Cloud)
• Cohere & Anthropic (LLMs)
• Cursor (Code Editor)

Our tech stack:

• NextJS + Vercel (Frontend)
• Fern (API)
• Microservices: Express (NodeJs), FastAPI (Python)
• Postgres DB + Prisma ORM
• AWS (Cloud)