Software Engineer, SDK Generalist

Company: Buildwithfern
Location: New York
Posted on: May 15, 2025

Job Description:

OverviewThis role is ideal for ambitious engineers with entrepreneurial goals. We are looking for a generalist engineer to contribute to the development of Fern's SDK generators. Your work will directly influence the experience of thousands of developers using SDKs for companies like , , , and more.Many of us are former or future founders, and this is an opportunity to scale a company from $1M to $10M ARR while partnering with fast-growing tech companies shaping the future of software. We value in-person collaboration and work out of our office in the Williamsburg neighborhood of Brooklyn.Sound like you?Get in touch.What you'll do

• Drive feature parity between languages. For each SDK language our generator supports, we need to support 15+ features like and . We're constantly raising the bar to make our SDKs the best in the industry. By collaborating closely with our users-often through GitHub Issues-we're crafting tools developers rely on to build the future.
• Expand SDK language selection. Our customers are asking us to support a broader range of SDK programming languages, such as Swift, Rust, and Terraform providers. Once you get a grasp of our you could author the next generator.
• Be a polyglot. Contribute code across repositories in different programming languages. You may write code in TypeScript, Python, and Go within the same week.
• Build our team. You'll work closely with our CEO and CTO to recruit and mentor new engineers as we scale.What you'll bring
  • Understand the broader language ecosystem (e.g., runtimes in JS/TS, type checkers in Ruby)
  • Enthusiasm for shaping language communities, like , our C# engineer who with the .NET team
  • Significant experience with TypeScript and expertise in at least one other programming language
  • An eye for crafting a great developer experience
  • Attention to detail
  • (Bonus) You've worked in a high-growth SaaS company
  • (Bonus) Experience working with the OpenAPI specification, Conjure (Palantir), or Smithy (AWS)What we offer
    • Engineering challenges that will push you to become a better developer
    • Kind teammates who work hard
    • First-hand experience building an early-stage startup
    • A salary of $170,000 to $210,000 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 insuranceOur tech stack
      • Microservices: Express (Node.js), FastAPI (Python)
      • Postgres + Prisma ORM (Database)
      • Anthropic + Bedrock (LLM)
      • Fern (API)
      • AWS (Cloud)About the interview
      • Phone Screen with a founder
      • Technical Interview: Coding
      • Technical Interview: Decomp (System Design)
      • Work Trial (in office)
      • Offer!
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Keywords: Buildwithfern, Lower Merion , Software Engineer, SDK Generalist, IT / Software / Systems , New York, Pennsylvania