Manufact

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)

TL;DR mcp-use is building open-source dev tools and infrastructure for MCP to help dev teams quickly build and deploy custom AI agents with MCP servers. Think of Vercel, but oss and vertical on MCP (Model Context Protocol). mcp-use SDK is one of the most popular MCP libraries with 8,000+ stars on GitHub and 3,000,000+ downloads. Used by 20% of US 500 like NASA, SAP, NVIDIA and more than 5,000 companies. The Role We are looking for an Open Source Champion. You are someone who lives on GitHub and can’t stand seeing an open issue or a question go unanswered. You will be the face of mcp-use in the developer community. You should already be familiar with the MCP space or have built projects using it. You will be our bridge to the official MCP committee, helping us lead the conversation on how this protocol grows. Your main goal is to show the world why our SDK is the best way to build MCP Servers, ChatGPT Apps (MCP Apps) and AI agents. What you’ll do Manage the community. You will run our open source repositories and keep the community happy and growing. Be the MCP expert. You will be our point of contact for the official MCP committee and other big industry initiatives. Evangelize our SDK. You will show developers why our SDK is the gold standard for creating MCP-enabled agents and servers. Bridge the gap. You will talk to developers every day to help them build cool things and use their feedback to improve our tools. Create the guides. You will build examples and documentation that make it incredibly easy for anyone to get started with MCP. What we’re looking for You have a history of contributing to or leading open source projects. You are already active in the MCP world or have built MCP-related tools in the past. You enjoy writing and talking to people as much as you enjoy writing code. You are organized and disciplined about keeping projects moving forward. You want to be the person who helps thousands of developers enter the AI era.

About Manufact Manufact (formerly mcp-use) builds the open-source SDKs and cloud infrastructure powering the Model Context Protocol (MCP) ecosystem. Our SDKs are used by thousands of developers to build MCP servers, agents, and ChatGPT Apps. We are YC S25, founder-stage, and moving fast. We are hiring a Developer Relations Engineer in San Francisco to ship demos every day, speak at events, run partnerships with the rest of the dev tools world, and write the content that makes developers fall in love with mcp-use. What you will own Daily demos Ship a cool demo every single day. Deep dives on features of the mcp-use SDK, walkthroughs of new product surfaces, short videos, working repos, X threads, GIFs. The kind of content that makes a developer stop scrolling and clone the repo. You will be the person who shows the world what mcp-use can actually do. Speaking and events Be on stage. Conferences, meetups, hackathons, podcasts, livestreams. AI Engineer Summit, MCP-themed events, partner workshops, university talks. We expect you to be a regular speaker at the events where MCP and AI builders show up, and to know everyone worth knowing in that scene. Partnerships and ecosystem coordination Run our collaborations with other dev tools companies. Cursor, Anthropic, OpenAI, Vercel, Zed, Replit, Linear, Stripe, every adjacent SDK and AI tool we should be cross-promoting with. You will coordinate joint demos, joint blog posts, joint launches, integration tutorials, and quarterly co-marketing pushes. This is real surface area: you own the relationships, the calendar, and the deliverables. Writing Blog posts, tutorials, deep technical guides, launch posts, X threads, LinkedIn essays. Manufact's voice on the internet runs through you. Frequent, high-quality, technically credible writing. Open source community Triage issues. Review PRs. Keep contributors unblocked. Be the person who makes mcp-use the most welcoming OSS surface in the MCP world. Bridge to the MCP committee Stay close to the official modelcontextprotocol/* maintainers and the broader spec community. Influence the protocol from the inside. Who we want You ship code AND ship content, in equal measure. Every week. You are already in the MCP world. You have built MCP servers, contributed to modelcontextprotocol/*, used mcp-use, or shipped tools other MCP developers use. This is the strongest single signal. You live on GitHub. Maintainership of an OSS project, meaningful PRs to repos you do not own, or stars on your own work. You write and speak in public. A blog, an X account with real engagement, conference talks, a podcast, a YouTube channel, anything. You are comfortable with a camera, a microphone, and a stage. You can run a partnership end to end. Organized enough to schedule a joint launch with another company's DevRel lead, kick off the engineering work, write the post, and ship on time. Deep curiosity about LLMs, agents, and the agentic protocol stack. You read MCP spec changes the day they drop. Smarter than the founders. We mean it. Bonus points You have spoken at a conference, run a meetup, or organized a hackathon. You have shipped a ChatGPT App, Claude desktop integration, or Cursor extension. You have maintained a Discord, OSS community, or large GitHub project. You have a real X presence, blog, or YouTube channel. You have strong opinions about Paul Graham essays. Red flags Pure marketing or non-technical DevRel. This role writes code. No public GitHub footprint, no shipped projects. Want to work remote. BigCo experience with no side projects, no OSS, no community involvement. Interview process Tell us about things you have built. Send URLs: repos, posts, talks, demos. The bar is what you have made, not what is on your CV. Send a short 2 to 3 minute Loom telling us about you and what excites you about MCP. Intro call with the founders. Take-home or OSS contribution. A real PR to one of our repos, or a small project we agree on. Paid trial. A week or two working wi

TL;DR mcp-use is building open-source dev tools and infrastructure for MCP to help dev teams quickly build and deploy custom AI agents with MCP servers. Think of Vercel, but oss and vertical on MCP (Model Context Protocol). mcp-use SDK is one of the most popular MCP libraries with 8,000+ stars on GitHub and 3,000,000+ downloads. Used by 20% of US 500 like NASA, SAP, NVIDIA and more than 5,000 companies. What you will own Build the best dev tools for MCP development. Develop the best platform to build and deploy MCP servers and agents. Improve and expand the features of the mcp-use SDKs. What we’re looking for We want people with high agency, smart, and passionate about how LLMs interact with external systems via MCP. Must be smarter than the founders. Understanding about LLMs and MCP. Excellent software engineering skills. You are a great hacker. You make good stuff. You have good taste. Speed of execution. Startups move quickly. You have watched Silicon Valley (optional). The role requires being in-person at our office in Zurich + traveling with us when we go to SF. We do not offer remote work options. What you are getting You're setting the foundation. Direct impact on 200,000+ developers building with mcp-use. Work directly with founders and shape the company's technical strategy. Good compensation + equity in a rocket ship. Hacker house in the best part of Zurich + long periods in SF.

TL;DR mcp-use is building open-source dev tools and infrastructure for MCP to help dev teams quickly build and deploy custom AI agents with MCP servers. Think of Vercel, but oss and vertical on MCP (Model Context Protocol). mcp-use SDK is one of the most popular MCP libraries with 8,000+ stars on GitHub and 3,000,000+ downloads. Used by 20% of US 500 like NASA, SAP, NVIDIA and more than 5,000 companies. The Role We are looking for an infra god. You are the person who knows how to build a cloud that just works. On mcp-use Cloud, companies deploy their own MCP servers and the agents that use them. You will design and build the architecture that powers this whole system, making sure it is fast, secure, and stays up. You will also create the technical blueprints that allow our platform to run inside different environments. Whether a customer uses AWS, Azure, or Google Cloud, you will enable them to run our solution on their own terms. What you’ll do Build the entire cloud setup for our platform from the ground up. Make sure our service can scale as we add thousands of new users. Create a way for customers to deploy mcp-use on their own private clouds easily. Help us figure out exactly what a startup needs to run a great cloud platform without the headache. You will set up the monitoring and dashboard systems so we always know exactly how the platform is performing and can fix issues before users even notice. You will build the walls and locks that keep our customers’ data private and secure within their own environments. You will ensure that as companies add more MCP servers and agents, the system stays fast and reliable. Own everything related to where our code lives and how it runs. What we’re looking for You have built and managed cloud systems before and know them inside out. You know how to make software easy to install and run on different types of servers. You are comfortable being the lead on technical architecture for large-scale deployments. You have experience setting up the tools needed to watch over a cloud and keep it healthy. You like simple solutions over complex ones. You are comfortable being the first person to handle infrastructure at a fast-growing startup.