Fern is an innovative startup founded in 2022, backed by YCombinator, focusing on transforming how businesses handle APIs. They enable companies to offer "Stripe-level" SDKs and documentation for REST APIs, solving the common challenges of untyped, unstandardized, and out-of-sync APIs. The Backend Engineer role offers a unique opportunity to work with a small team of generalists in their Williamsburg, Brooklyn office. The position involves working across multiple programming languages, driving SDK feature development, and expanding language support. The role requires a polyglot developer comfortable with TypeScript, Python, and Go, offering both technical challenges and the experience of building an early-stage startup. The company culture emphasizes direct customer interaction, problem-solving, and collaborative work. With customers including Cohere, ElevenLabs, Webflow, and Merge.dev, Fern is positioned for significant growth in the API tooling space. The compensation package includes competitive salary, equity, and comprehensive benefits, making it an attractive opportunity for engineers interested in early-stage startup experience.