Member of Technical Staff - Research Engineer is open at Composio in sf. The posting gives no salary; similar roles in the United States advertise a median of $195K. Posted on Feb 10, 2026, and still on Composio’s careers page when we last checked, on Nov 14, 2026.
About the role
? - build large evals with real tool calling data, measuring where models suck 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 - SFT on our agentic traces and RL models on top of our agentic harness and app…
The opening lines of the posting. The rest is on Composio’s careers page.
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