Unity Mobile Developer – Existing Consumer App

I'm looking for an experienced Unity developer to join an existing mobile app project. The app is already live and has an active user base, and I'm looking for someone to help build new features while working alongside another Unity developer. This is not a solo project; you'll be collaborating within an existing codebase and taking ownership of well-defined features. What you'll be working on: Implementing new app features Building and refining UI/UX Improving onboarding and user experience Animations and visual polish Bug fixes and optimization Integrating third-party SDKs when needed Collaborating through Git with another developer What I'm looking for: Strong experience with Unity and C# Experience shipping mobile apps (iOS preferred) Comfortable working in an existing codebase Able to build polished, responsive UI Good communicator with reliable turnaround times Comfortable using modern AI development tools (Codex, Cursor, Claude Code, GitHub Copilot, etc.) to improve productivity while maintaining code quality Nice to Have: Firebase experience Mobile UI/UX experience Experience implementing subscriptions or in-app purchases Animation experience Experience optimizing apps for performance Project This is an active consumer app with regular feature releases. I'm looking for someone who enjoys building polished user experiences and can work independently on assigned features while collaborating with another developer. If the collaboration goes well, I'm looking for a long-term working relationship with ongoing feature development. To Apply Please include: 2–3 Unity mobile apps you've worked on (App Store or Google Play links preferred) A brief description of your role on each project Your experience working in an existing Unity codebase Which AI coding tools you use in your workflow Your hourly rate and weekly availability Bonus: Tell me about a feature you're particularly proud of building in Unity and why.