Khaled D.

I build complete products — from the mobile app your users touch to the backend, database, and server infrastructure behind it. One developer, end to end, no coordination overhead. Over 66 completed Upwork projects (100% Job Success, 5.0★), I've shipped apps for medical companies, marketplaces, and startups across Europe and the Gulf. What I deliver: * Mobile apps — Flutter, React Native, and native Android, from MVP to production apps serving thousands of weekly active users * Backend & APIs — Python, C#/.NET, REST APIs, Firebase (Auth, Analytics, Crashlytics, Cloud Functions) * Infrastructure — Linux server setup and administration (Hetzner, VPS), deployment, monitoring * The unglamorous parts that make products succeed — payment integrations (PayTabs, Paymob), multilingual/RTL support (Arabic, German, French, English), analytics dashboards, crash monitoring Currently maintaining a production app for a German medical company — so I'm comfortable with professional standards: clean code, clear communication, and deadlines that hold. How I work: I respond fast, give honest estimates, and flag problems early instead of hiding them. Check my reviews — clients come back. Let's discuss your project. Send me a message with what you're building.