Quiz Game Android App Design

I'm in need of a seasoned app designer for the development of a quiz-based game. This Android application will utilize multiple-choice questions, include a timer for each question, and incorporate score tracking capabilities. The comprehensive design should be both user-friendly and engaging, aimed at a wide demographic. Experience in gameplay mechanics and UI/UX design for mobile gaming applications is a major plus. Key skills needed:
- App design
- Android development
- User experience
- User interface
- Game mechanics.
- Social Login Google.
- Understanding of quiz games.
- Android game service integration.