Posted Aug 18, 2026

Senior Mobile Developer (iOS Objective-C + Android Java) - React Native Rebuild

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Update July 30th: Now hiring for this job. I AM REAL - Please start your proposal with this exact phrase at the very top. We are a professional company looking for a senior-level mobile developer with strong expertise in both iOS and Android development. Current project scope: • Maintain and enhance our existing native Android codebase (written in Java) • Ongoing iOS maintenance and development using Objective-C • Bug fixing, feature development, and performance improvements • Work closely with our web development team You must be: • Highly experienced with Java (Android), Objective-C (iOS), and React Native (for the rebuilds) • Forward-thinking, innovative, and obsessive about writing clean, high-quality, maintainable code • Able to deliver projects on time with minimal supervision • Excellent at communicating with web developers Requirements: • Individuals only - no agencies • Must be located in India • Job Success Score of 95% or higher • Apply through Upwork We provide clear, detailed instructions and prompt assignment feedback so you always know exactly what is expected. If you’re a talented senior mobile developer who loves building products that help users around the world, we’d love to hear from you. Looking forward to your proposal!