Mostafa B.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 Nov 5, 2026.

I’m a mobile developer & data integration expert with experience in building mobile apps, exchanging data between EHR systems. – I can help in: - Developing Mobile apps for both Android / iOS using Expo and React native - Javascript + typescript clean proven code - Connect systems with HL7 protocol format using APIs/TCP MLLP server - Building / Consuming API using NodeJS, Mirth connect, PHP laravel... Regular communication is really important to me, so let’s keep in touch!”