Apply on company website Seattle, WA / San Francisco, CA / Remote Hybrid Full-time

CopilotKit, Inc. is hiring a Senior Software Engineer, Partnerships & Integrations (Open-Source)

Responsibilities

  • Build and maintain integrations with agent frameworks and model providers, including AG-UI protocol adapters
  • Design clean, idiomatic APIs that feel native to each framework while maintaining ecosystem consistency
  • Own full integration lifecycle: research, prototyping, implementation, documentation, and maintenance
  • Work directly with partner teams to coordinate releases, resolve compatibility issues, and influence roadmaps
  • Create comprehensive examples and guides for rapid adoption
  • Monitor ecosystem trends and identify high-value integration opportunities

Requirements

  • Track record building integrations, SDKs, or libraries that connect disparate systems
  • Strong TypeScript expertise (3+ years)
  • Experience rapidly learning new frameworks and APIs (you have a system for this)
  • Comfort working across multiple codebases and languages simultaneously
  • AI-native workflow with demonstrated ability to leverage AI tools for exploring APIs and accelerating context-switching
  • Clear communication skills for cross-team/cross-company collaboration
  • High independence and ability to drive projects end-to-end

Nice to Have

  • Python proficiency
  • Agent framework experience (LangGraph, CrewAI, ADK, Mastra)
  • LLM APIs
  • External partner work
  • Open-source contributions
  • React
  • Real-time systems

Benefits

  • Competitive salary and real equity
  • 100% health coverage for employees, 50% for dependents
  • Dental and Vision insurance
  • Competitive paid time off
  • Remote-first, high-agency culture
  • Flexible work, no micromanagement
  • Full trust and ownership
Job Details
Location Seattle, WA / San Francisco, CA / Remote
Work mode Hybrid
Employment Full-time
Category other
Posted 7 months ago
Application On company website
About company
CopilotKit, Inc. logo
CopilotKit is the #1 open-source platform for connecting AI Agents with user-facing applications. In our first two years, we’ve delivered the fastest growing Javascript AI framework of all time, and built a vibrant community (40k+ GitHub stars, millions of weekly installs, 10s of millions of copilot interactions, double-digit MoM growth), are already monetizing at the enterprise level, and are used by companies ranging from startups to Fortune 100s (including production usage by over 10% of Fortune 500s). We’re emerging as the default for a critical part of the AI stack: the agent/user interaction layer. CopilotKit brings agents out of demos and terminals and into production, through deep integrations with the leading AI infrastructure companies and hyper-scalers (including the leading AI/infra teams at Google, Microsoft, Amazon, Oracle, LangChain, Mastra, Pydantic, Agno, and others). Our small, fast-moving team is building the agentic application platform that will define how user-interactive AI actually manifests in the real world.
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