What the role involves
Why Manufact?
At Manufact, we’re building the infrastructure layer for the next generation of software: AI agents.
Our platform helps developers build, test, and deploy MCP servers and AI-powered applications that integrate directly with tools like ChatGPT and Claude. We’re creating the foundation for a world where software is consumed not just by humans, but by autonomous agents.
In a short time, our open-source SDKs have reached millions of downloads and are used by thousands of developers and companies worldwide.
You’ll be joining a very small, fast-moving team with roots in Zurich and San Francisco. This is an opportunity to work directly with the founders and contribute to a product used at scale by cutting-edge AI teams.
Joining Manufact at this stage means high ownership, fast learning, and real impact from day one.
Your Role
At Manufact, you won’t just “do tasks”. You’ll help build core infrastructure for AI agents.
This is a hands-on engineering internship where you will primarily work on backend systems, while also contributing to DevOps and parts of the frontend as needed.
You’ll ship real features used by developers building AI products, and see your work in production quickly.
What You Will Do
Build core backend systems
Develop and improve backend services using TypeScript
Work on APIs, SDKs, and infrastructure powering MCP servers and apps
Help design systems that are scalable, reliable, and developer-friendly
Contribute to DevOps and infrastructure
Assist in deploying and maintaining cloud infrastructure
Improve developer workflows, CI/CD pipelines, and testing systems
Help ensure reliability and performance of the platform
Work on testing and developer tooling
Use Playwright to build end-to-end tests and improve product reliability
Contribute to tools that developers use to build and debug MCP apps
Touch frontend when needed
Support simple frontend features or internal tools
Help improve developer experience across the product
Ship fast and iterate
Work closely with the founders to prioritize and deliver features
Take ownership of projects from idea to production
Iterate quickly based on real user feedback
What Success Looks Like
You’ve shipped features that are actively used by developers
Backend systems you worked on are stable, scalable, and easy to use
Testing coverage and reliability have improved through your contributions
You’ve taken ownership of projects and delivered them end-to-end
You’ve learned how to operate in a fast-paced startup environment
Who You Are
You are studying Computer Science or a related field (or equivalent experience)
You have solid programming skills, ideally in TypeScript or similar languages
You are comfortable working on backend systems
You are curious about DevOps, infrastructure, and distributed systems
You enjoy building and shipping real products, not just prototypes
You take ownership and like moving fast
Bonus
- Experience with Playwright or automated testing
- Exposure to cloud platforms (AWS, GCP, etc.)
- Interest in AI, LLMs, or developer tools
Why Join Manufact
- Work directly with founders and shape a YC startup from the inside
- Build infrastructure for AI agents used by thousands of developers
- Gain hands-on experience across backend, DevOps, and product engineering
- High ownership and steep learning curve
- Flexible start date (the sooner, the better)
About Manufact
Manufact provides open-source dev tools and infrastructure for MCP to help dev teams quickly build and deploy MCP Servers for AI agents & MCP Apps for ChatGPT and Claude. We developed the mcp-use SDK, which has over 7M downloads and 10,000 GitHub stars, and is used by 20% of the US 500. Create MCP servers/apps in minutes, connect your GitHub repo, and make them immediately available to AI agents and ChatGPT.
Full Manufact profile