Bill S.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 am a seasoned mobile application developer with over two decades of hands-on experience in crafting cutting-edge mobile solutions. My journey in the industry has seen the evolution of mobile technology, and I've consistently adapted and excelled in delivering top-notch mobile apps. Owner of Oval Innovations, LLC. Key Skills: iOS and Android Development Cross-Platform Development (React Native, Flutter) UI/UX Design and Optimization Backend Integration and API Development Quality Assurance and Testing Continuous Integration/Continuous Deployment (CI/CD) Project Management and Team Leadership