via Ashby
$120K - 200K a year
Own and improve core APIs and SDKs, deliver elegant interfaces, and work closely with customers to enhance the product.
Experience in core product engineering, building products from zero to one, AI-native development, and excellent documentation skills.
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? elevate the experience of teams building on us, by improving our core APIs and SDK deliver elegant interfaces both on the frontend and the sdk own product end to end, taking them from inception to production work closely with customers to win their hearts, improving the product in the process writing crisp articulate docs "Must haves" if you are very good, nothing is a must per-se core product engineering you have build product, taking them zero to one you care deeply about the craft of the product you are building you are able to hold many different persona at contention while delivering delightful experiences for them ai native you have built with the language models you have built for the language models taste — you have that "finger feel" what makes a good product. typist — you can write docs well and explain complex ideas clearly human — you build trust and admit what you don’t know Optional multiple years of experience writing typescript contributions to a major open source project started companies or build large side projects
This job posting was last updated on 2/10/2026