Android App User Onboarding Enhancement

I'm looking for an Android developer to enhance the user onboarding experience of my app. The onboarding process should be sequential and incorporate tooltips and hints.

Key Requirements:
- Implement sequential onboarding
- Designing and integrating tooltips and hints
- Incorporating user engagement elements within the tooltips and hints. This includes quizzes or mini games, call-to-action buttons and pop-up messages

Ideal Candidate:
- Proven experience in Android app development
- Expertise in designing user-friendly interfaces
- Prior experience with user engagement elements within app onboarding
- Ability to deliver high-quality work on time.

The goal is to increase user onboarding rate and improve overall user experience.