Senior Software Engineer, Partnerships & Integrations (Open-Source)
About this role
Role Overview
The Senior Software Engineer, Partnerships & Integrations (Open-Source) at CopilotKit is a remote position based out of Seattle, WA, offering an opportunity for an early leader to shape the agent-user interaction stack. This role suits an experienced engineer who excels at building high-leverage integrations within a fast-moving open-source ecosystem.
CopilotKit operates as an open-source platform designed to connect AI agents with user-facing applications. The team has built a rapidly growing JavaScript AI framework, achieving millions of weekly installs and broad enterprise adoption across startups and Fortune 100 companies. Working within this environment means contributing to a critical layer of the AI infrastructure stack that brings AI agents out of terminals and into real-world production.
Key Responsibilities
Take ownership of deep integrations connecting CopilotKit and AG-UI with the broader agentic stack to maintain its status as a default integration choice. Partner daily with technical teams at major infrastructure organizations and hyper-scalers, including Google, Microsoft, Amazon, and Oracle. Collaborate directly with leading AI ecosystem teams such as LangChain, Mastra, Pydantic, Agno, AG2, and LlamaIndex. Rapidly understand emerging frameworks, establish ideal integration patterns, and deliver production-ready SDKs utilized by tens of thousands of developers.
Requirements
Demonstrate fluency in AI-assisted development as a primary working method, utilizing AI tools to explore unfamiliar APIs, generate boilerplate code, and manage rapid context-switching. Evaluate technical outputs, identify potential failure modes, and apply real-time course corrections. Bring a strong background in shipping meaningful integration work where speed, breadth, and depth are equally critical.
Skills and Tools
About the Company
CopilotKit is the leading open-source platform connecting AI agents with user-facing applications. Within two years, the organization has scaled to over 40,000 GitHub stars, millions of weekly installs, and tens of millions of copilot interactions with strong month-over-month growth. Monetizing at the enterprise level, the platform sees production usage by more than ten percent of Fortune 500 companies. The company collaborates deeply with top AI infrastructure providers and hyper-scalers to define how interactive AI functions in the real world.
How to Apply
Interested candidates should visit the official CopilotKit careers page to submit an application for this position.
Skills and tech stack
Questions candidates ask
Where is the Senior Software Engineer position located?
The role is based in Seattle, WA, with remote work options available.
What core technologies and tools are mentioned for this role?
Key technologies include JavaScript, LangChain, and AG-UI, alongside AI-assisted development workflows.
Which external partners does CopilotKit collaborate with?
Engineering teams collaborate with major organizations including Google, Microsoft, Amazon, Oracle, LangChain, Mastra, Pydantic, Agno, AG2, and LlamaIndex.
What is the primary focus of the integration work?
The focus is on building deep connections between CopilotKit, AG-UI, and the broader agentic stack to ensure smooth integration for developers.
How should candidates apply for the job?
Candidates must apply directly on the official CopilotKit careers page.