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InkeepInkeepNew York, NY

Member of Technical Staff, TypeScript Engineer (Principal)

Principal TypeScript engineer owning end-to-end platform features for AI agent building, from API design and SDKs to UIs. Requires 4+ years TypeScript experience, full-stack fluency, system design skills, and high ownership.

180k – 250k/yr
On-site4+ YOEFullstack Engineering

About the role

Responsibilities

  • Own platform features end-to-end: architect, build, and maintain critical systems that customers depend on.
  • Lead technical and team direction: serve as a leader and resource.
  • Shape the developer experience: design APIs, SDKs, and tools that developers love to use.
  • Build at the frontier and in public: work on cutting-edge agentic systems and contribute to open source.
  • Influence product direction with technical and product insights.
  • Work directly with customers to understand AI agent building and design solutions.

Requirements

  • Strong TypeScript expertise: 4+ years building full-stack products with TypeScript, deep understanding of end-to-end web fundamentals.
  • System design skills: architect APIs and systems that are elegant, scalable, and developer-friendly.
  • Product thinking: care about end-user experience and how people use what you build.
  • Full-stack fluency: comfortable working across the stack, from APIs to SDKs to UIs.
  • High ownership: own problems end-to-end.

Nice-to-Haves

  • Experience building with AI (prompts, evals, RAG, agentic workflows, etc.).
  • Background in developer tools or B2B SaaS products.
  • Open source contributions or public projects.
  • UX or design sensibility.

Skills

TypeScriptAPIsSDKsSystem DesignFull-StackJavaScriptReactNode.jsAI AgentsRAG
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