Senior Software Engineer, Core Frameworks & Protocols (Open-Source)

3 weeks, 4 days ago
Full-time
Senior
Software Development
CopilotKit - Build Copilots 10x Faster

CopilotKit - Build Copilots 10x Faster

CopilotKit offers customizable copilot building blocks for apps, enhancing productivity and engagement with smart copilots that understand context and provide auto suggestions and drafts.

Internet Software & Services

Description

  • Design high-quality TypeScript and Python SDKs that abstract complexity while preserving control.
  • Build reusable components and maintain clean, intuitive APIs.
  • Drive projects independently through ambiguity with strong technical judgment.
  • Contribute to the open-source ecosystem and engage with the developer community.
  • Optimize performance and ensure scalability at production scale.
  • Work upstream of the headless UI layer to support core platform functionality.
  • Collaborate with AI infrastructure teams and hyperscalers on seamless copilots integration.
  • Own systems end-to-end and help shape production-grade AI agent interactions.

Requirements

  • Track record building developer tools, SDKs, or libraries used by engineering teams.
  • Deep TypeScript expertise with 3+ years of experience.
  • Experience with React and Node.js.
  • Experience designing clean APIs and working in fast-moving, ambiguous environments.
  • AI-native workflow experience using tools like Copilot, Cursor, Claude, or similar for architecture exploration, refactoring, and prototyping.
  • Ability to think at the level of systems and outcomes while critically evaluating AI-generated outputs.
  • Clear communication and a high degree of independence.
  • Python experience is a plus.
  • Open-source contributions are a plus.
  • Experience with functional reactive programming, agent runtimes, real-time systems, or maintaining public APIs is a plus.

Benefits

  • Competitive salary with real equity and early-stage ownership.
  • 100% health coverage for employees and 50% coverage for dependents.
  • Dental and vision insurance.
  • Competitive paid time off.
  • Remote-first, flexible work environment with no micromanagement.
  • Opportunity to work on foundational AI infrastructure with significant technical and product influence.
  • Access to a strong network of leading AI infrastructure and enterprise teams.

Interested in this position?

Apply directly on the company website

Apply Now

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