Senior Developer for Existing iOS App, Backend & Admin Portal

Nuance is a live iOS matchmaking app newly launched with only 200 users. I’m seeking a senior independent developer to take over maintenance and ongoing development from our current agency, working directly with me on a flexible hourly basis. The role covers the iOS app, backend and web-based admin portal used to manage members and manually release matches. Initial priorities include reviewing the codebase, resolving existing bugs and stabilising matching logic, preferences, onboarding, messaging and coin transactions. You should have experience taking over production applications, working across mobile, APIs and databases, testing fixes end to end and managing App Store releases. I’m looking for clear communication, practical problem-solving and someone who takes ownership from diagnosis through verified resolution. Independent developers only, please. Include your hourly rate, availability, mobile and backend technologies, and an example of an existing application you have successfully taken over.