Member of Technical Staff - Research Engineer at Composio (San Francisco, CA)
Composio· San Francisco, CA·
Role details
Work type
Onsite
Employment
Full-Time
Job description
At Composio, we are building infrastructure that allows agents to communicate with the tools you use for work including Github, Gmail, Notion, Salesforce, etc. We are a small team of engineers wrangling problems from context to search, that help us provide the most capable bridge between your agents and your tools.
We raised a $25M Series A from Lightspeed with some incredible angels like Guillermo Rauch (CEO of Vercel), Dharmesh Shah (CTO of Hubspot), Gokul Rajaram. Beginning of this year we 3x our ARR, our customer range from your friends in the YC batch to Wabi, Glean, Zoom and many more.
What you'll do?
- 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 sandboxes.
"Must haves" if you are very good, nothing is a must per-se
- research
- you can independently execute against the research goals
- you can prototype and test experiments very quickly
- you can work with product and engineering teams to take research ideas to production in a matter of days
- typist — you can write docs well and explain complex ideas clearly
- human — you build trust and admit what you don’t know
Why work at Composio
- Culture highlights: The team is building infrastructure that “shapes AI’s future” and solving hard, unsolved problems in distributed self-improving systems. Emphasis on elegance, autonomy, and collective intelligence.
- Remote/hybrid/office policy: Not explicitly defined, but HQ is in San Francisco with offices in the US, India, Canada, Nepal, and Colombia. Hybrid/remote likely depending on role.
- Notable perks or engineering culture: Engineers work on cutting-edge LLM infrastructure, distributed systems, and developer tools. The blog highlights a focus on “hard problems no one’s cracked yet” and a commitment to creating “systems that feel magical.” Open roles include Member of Technical Staff (Research Engineer, Product Eng, Enterprise Platform), Growth Engineer, and Founding BDR – indicating a fast-scaling, high-impact environment.