Member of Technical Staff - Research Engineer

About Composio

Composio builds infrastructure that allows agents to communicate with the tools you use for work such as Github, Gmail, Notion, Salesforce, and more. We are a small team of engineers tackling problems from context to search, providing the most capable bridge between your agents and your tools. We raised a $25M SeriesA from Lightspeed and other angels, and have tripled our ARR this year.

Responsibilities

• Build large evaluations with real tool‑calling data, measuring where models struggle in long‑horizon tool execution.
• Work on search problems for finding semantically similar tools and cached tool execution paths and plans.
• Train large agentic harness systems to improve session accuracy with millions of real tool calls as baseline data.
• Fine‑tune on our agentic traces and train RL models on top of our agentic harness and app sandboxes.

Requirements

• Excellent research...