Daniel H.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Oct 22, 2026.

I’m a Full-Stack developer with 5 years of experience building production-grade web, mobile app and backend systems. I’ve worked on government-scale platforms, bank payment integrations, and business-critical applications, with a strong focus on backend reliability and clean architecture — while still delivering modern, performant frontends. - Tech focus Frontend: React.js, Next.js, JavaScript (ES6+), TypeScript, HTML5, CSS3, Vanilla JS Mobile App: Flutter, React Native Backend: Java Spring Boot (payments, transactions, APIs), Django / Django REST Framework, Laravel, Slim Framework (API) Databases & Tools: PostgreSQL, Supabase, MySQL, REST APIs, JWT authentication, Git, Agile/Scrum - Let’s talk If you already have a design or specs — great. If not, I can help you define the technical approach. Send me a message and let’s see if we’re a good fit.