Mateja I.
Full Stack Developer | React/Next.js, Node.js & Supabase Specialist
Need a production-ready SaaS or MVP built fast and without technical debt? With 7+ years of Full Stack experience, I specialize in building scalable SaaS products and MVPs. My expertise is built on a strong Node.js foundation and extensive experience with Headless CMS architectures, allowing me to bridge the gap between complex backend logic and modern frontend performance. What I Can Do For You • Build or improve your web app (React / Next.js) • Create or improve responsive interface • Set up or optimize your backend (Node.js / Supabase / PostgreSQL) • Fix bugs, optimize performance, or refactor code • Develop MVPs and prototypes quickly • Integrate external APIs or third-party services • Deploy apps to Vercel, Netlify, or custom hosting Why Clients Work With Me • Clear, simple communication • Predictable, organized workflow • Fast delivery and frequent updates • Clean, maintainable code that’s easy to continue building on Recent Work • Built and launched a production-ready nutrition tracking app (similar to MyFitnessPal) using React Native, Node.js, Supabase, and PostgreSQL • Developed multiple admin dashboards and internal tools (React, Next.js, Tailwind) • Created custom APIs and backend services (Node.js, REST, GraphQL) If you want a reliable developer who delivers results without drama, let’s talk.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $19k
Billed in all: $24,684$25k
$3.2k in the last 6 months
Earnings, last 30 days
Skill rankings: Top 3% in HTML
Ranked by MRR among everyone on Upwork with the skill.
- #14Strapi205 freelancers · 🇷🇸 #1Top 7%🇷🇸#1 of 3
- #110CMS Development2,787 freelancers · 🇷🇸 #6Top 4%🇷🇸#6 of 54
- #125Redux3,245 freelancers · 🇷🇸 #2Top 4%🇷🇸#2 of 30
- #231REST API5,062 freelancers · 🇷🇸 #6Top 5%🇷🇸#6 of 37
- #248Tailwind CSS6,978 freelancers · 🇷🇸 #7Top 4%🇷🇸#7 of 70
- #308Supabase4,116 freelancers · 🇷🇸 #6Top 7%🇷🇸#6 of 39
- #586HTML18,716 freelancers · 🇷🇸 #8Top 3%🇷🇸#8 of 297
- #636SQL12,903 freelancers · 🇷🇸 #16Top 5%🇷🇸#16 of 143