Android App Development for "Career Growth"

I need an Android developer with strong UI/UX design skills and experience in backend integration (database + Firebase) to work on a "Career Growth" app. The app is intended for students and its main features include:

- Skill Development Resources
- Mentorship Program
- Goal Tracking
- Company Reviews

The app should consist of the following:

1. **Signup and Onboarding**: A smooth and user-friendly onboarding process.
2. **Five Main Pages**: These pages should be dedicated to the features mentioned above.
3. **Gamified Leaderboard on Profile Page**: This is a crucial feature which will include:
- **Points System**: Users should be able to earn points based on their activities within the app.
- **Badges for Achievements**: Users should be recognized and rewarded for their accomplishments with badges.
- **Levels Based on Activity**: There should be different levels that users can achieve based on their engagement.

Ideal Skills:
- Proficient in Android app development
- Strong UI/UX design skills
- Experience with backend integration (database + Firebase)
- Prior experience in developing gamified apps
- Knowledge of user onboarding best practices
- Ability to create a seamless user experience for students

Please provide examples of your previous work, especially any apps with similar features or target audience.