Christian M.

For over 5 years, I've been a trusted Full-Stack Developer partner for startups and mid-sized companies across SaaS, Healthcare, AI, IoT, and Marketplace platforms 🚀 My core focus is building scalable, production-ready web applications using React.js, Next.js, and Node.js, with a strong emphasis on clean architecture, performance, and long-term maintainability. I work both hands-on as a Senior Full-Stack Engineer and as a technical lead, supported by a small, experienced team of Full-Stack and React developers. Together, we've invested 76,800+ engineering hours delivering robust products for ambitious startups across Healthcare, SaaS, DevOps/Infrastructure, BioTech, EdTech, Travel, Legal, and FoodTech. Proven Impact Contributed to products later acquired by companies like Unilever Worked with clients collaborating with Coca-Cola, Mondelez International, Whirlpool Helped build a platform serving 150M+ monthly users in cloud storage & file hosting Participated in the development of an AI + IVF healthcare product, contributing to real-world successful pregnancies Technical Expertise Frontend: React.js, Next.js, TypeScript, JavaScript; Tailwind, Bootstrap, SCSS; Redux, Redux-Saga, Redux-Thunk, SWR, shadcn/ui; React Native (mobile), Angular (experience) Backend: Node.js, NestJS, Express, Koa; WebSockets, REST APIs; AWS (Lambda, Cognito, S3, Amplify, IoT) Databases: PostgreSQL, MongoDB, MySQL; Firebase/Firestore, DynamoDB, Supabase Tooling & DevOps: CI/CD, code reviews, scalable workflows; Webpack, Gulp, NPM/Yarn, ESLint, Prettier; SSR, SEO optimization, PWA architecture, Vercel deployments What I Do Best Build scalable SaaS & marketplace platforms Deliver fast MVPs without sacrificing architecture Improve performance, UX, and maintainability of existing apps Lead teams, define development processes, and ensure predictable delivery Help founders turn ideas into production-ready products How I Work Small teams → faster decisions, less overhead Clear architecture → fewer rewrites Structured processes → ~90% accuracy on delivery estimates Transparent communication and regular progress updates After years of building complex systems, one thing is clear: there's no secret — well-structured development processes consistently outperform shortcuts. 👋 If you're looking for a senior, reliable engineering partner who can build, scale, and stabilize your product — let's talk. ⤵️ Check out my projects below and let's build something solid.