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Composio

Agentic AI integration infrastructure platform

Fullstack Engineer Intern - Product Team

Full-Stack EngineeringConfirmed live in the last 24 hours
Internship · Fall 2026, Winter 2027San Francisco, CA, USA$57.69 /hrIn-person

About the Job

Requirements

  • Experience building full-stack projects from scratch, taking them from zero to one.
  • Ability to build with language models and build for language models.
  • Ability to write documentation well and explain complex ideas clearly.

Responsibilities

  • Improve the developer and consumer web experiences.
  • Deliver interfaces across the frontend and SDK.
  • Work closely with customers and improve the product based on customer needs.
  • Write clear, articulate documentation.

Desired Qualifications

  • Proficiency in TypeScript, React, Tailwind, and Next.js.
  • Having started companies, built large side projects, or won hackathons.

About the Company

Composio

Agentic AI integration infrastructure platform

Composio provides an infrastructure platform that lets AI agents connect to external apps and services through a unified API, handling credentials and tool integrations for 250+ pre-built tools (like Salesforce, HubSpot, Gmail, and Slack). It adds a reinforcement learning layer so agents can learn from experience and share knowledge across the ecosystem, enabling better performance over time. The platform is framework-agnostic and works with LangChain, CrewAI, and OpenAI Agents, reducing integration friction and speeding up development from months to days. Its goal is to help enterprises deploy capable, integrated AI agents at scale by enabling collective learning and easier multi-tool coordination.

Company size
51-200
Company stage
Series A
Total funding
$25M
Headquarters
San Francisco, CA
Founded
2023

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