Posted on:February 10, 2026

Member of Technical Staff - Platform Eng at Composio

Composio is hiring a Member of Technical Staff - Platform Eng in San Francisco, CA, US. On-site.

About Composio

Composio is a developer platform that gives AI agents (such as Claude or Codex) secure access to over 1,000 tools. It provides SDKs, tool execution, and authentication infrastructure for building agents, with features like just-in-time tool calls, secure delegated auth, sandboxed environments, and parallel execution. It also offers enterprise features including SSO, governance, and audit controls.

Member of Technical Staff - Platform Eng 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?

  • evolve our platform primitives and APIs — auth, automatic refreshes, triggers, tool search, tool planning, orchestrating and managing sandboxes

  • manage multiple runtimes for code execution across lambdas and firecracker

  • performance optimization — tracing, CPU/heap profiling, optimizing db queries, optimizing temporal workflows.

  • work closely with product engineering teams and customers to win their workloads, improving the product in the process

  • writing articulate docs

"Must haves"

if you are very good, nothing is a must per-se

  • core platform engineering

    • you've worked extensively in scaling backend distributed systems

    • you know how to maintain reliable systems while shipping fast

    • you are able to hold many different parts of the platform in mind at once

  • ai native

    • you have built with the language models

    • you have built for the language models

  • linux — you are comfortable in a linux enviornment

  • 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, Go

  • contributions to a major open source project

  • started companies or build large side projects

Apply now

Applications go straight to Composio. We never sit between you and the employer.

Apply now ↗
Get new startup jobs by email
Pick what you want to hear about. The first email confirms your alert, then we only write when something new matches. You can unsubscribe from any email.
1 of 15 categories
How often

Similar engineering jobs

All engineering jobs →