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

CopilotKit

TrulyRemote Verified

Hand-curated global remote job with direct application link

Technical Requirements

TypeScriptReactNode.jsAPI DesignPythonAI-assisted Development

What You'll Do

    • Design high-quality TypeScript & Python SDKs that elegantly abstract complexity while preserving control
    • Build reusable components and maintain clean, intuitive APIs
    • Drive projects independently through ambiguity with strong technical judgment
    • Contribute to our open-source ecosystem and engage with our developer community
    • Optimize performance and ensure scalability at production scale

What We're Looking For

    • Track record building developer tools, SDKs, or libraries used by engineering teams
    • Deep TypeScript expertise (3+ years) with React and Node.js experience
    • Experience designing clean APIs and navigating fast-moving, ambiguous environments
    • AI-native workflow: You actively use AI tools (Copilot, Cursor, Claude, etc.) for architecture exploration, refactoring, and rapid prototyping—not just autocomplete; you think at the level of systems and outcomes, directing AI to generate and explore while evaluating outputs critically
    • Clear communication and high degree of independence

Bonus Points

    • React infrastructure work, LLM integration, or AI product surfaces
    • Python experience, open-source contributions, or functional reactive programming
    • Experience with agent runtimes, real-time systems, or maintaining public APIs
Senior Software Engineer, Core Frameworks & Protocols (Open-Source)
CopilotKit
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