Senior Software Engineer, Partnerships & Integrations (Open-Source)

About Us: 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).

The Role: You'll own the deep integrations between CopilotKit & AG-UI and the broader agentic stack — and keep our position as the default choice for connecting any agent to user-facing surfaces. You'll collaborate on a daily basis with some of the most important teams on some of the world's most important companies, including the leading AI teams at Google, Microsoft, Amazon, Oracle, as well as leading teams as Langchain, Mastra, Pydantic, Agno, AG2, Llamaindex, and others. This role requires both breadth and depth: rapidly understand new frameworks, identify the right integration patterns, and ship production-quality SDKs that tens of thousands of developers depend on.

What You'll Do:

• 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); Python proficiency is a plus
• Experience rapidly learning new frameworks and APIs
• 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: Agent framework experience (LangGraph, CrewAI, ADK, Mastra), LLM APIs, external partner work, open-source contributions, React, real-time systems.

Benefits: 100% health coverage for employees, 50% for dependents, Dental and Vision insurance, competitive paid time off, remote-first, high-agency culture, competitive salary and real equity.