Guides
A closer look at the kinds of freelance work I take on. Each guide covers what the work involves, the experience I bring to it, and answers to the questions I hear most often.
If you would rather start with the big picture, the freelancing page is the place.
Work with Ruan Martinelli, a freelance product engineer with over ten years of experience shipping web products for startups across engineering, design, and product.
Hire Ruan Martinelli, a freelance Node.js developer with over ten years of experience building APIs, backends, and integrations for startups and products with millions of users.
Hire Ruan Martinelli, a freelance React developer who designs and builds polished web interfaces, dashboards, and design systems for startups.
Hire Ruan Martinelli, a freelance TypeScript developer building full stack products, APIs, and frontends with TypeScript end to end.
Hire Ruan Martinelli, a freelance full stack developer with over ten years of experience building complete web products: backend, frontend, design, and deployment.
Hire Ruan Martinelli as a fractional founding engineer: a senior product engineer who builds your startup like a founding team member, without the full time hire.
Hire Ruan Martinelli to design and build your startup MVP: a real, production ready first version of your product, shipped by one experienced product engineer.
Hire Ruan Martinelli to build AI features into your product: LLM integrations, AI powered workflows, and evals, built with the same care as the rest of your stack.
Hire Ruan Martinelli, a freelance developer building on the Cloudflare stack: Workers, R2, D1, KV, and Pages, for fast and inexpensive web applications.
Hire Ruan Martinelli, a freelance API developer who designs and builds REST APIs, webhooks, and third party integrations that other developers enjoy using.