UX/UI Designer for Mobile App Onboarding

I'm seeking an experienced UX/UI Designer to create an onboarding flow and paywall screen for a subscription-based mobile app. This is a one-time project, but I hope to establish a long-term collaboration.

Key Requirements:
- Onboarding flow focused on user retention
- Paywall screen for subscription-based access
- Designs must convert, guide, and align with user psychology

Ideal Skills & Experience:
- Proven UX/UI design experience, especially for mobile apps
- Strong understanding of user psychology and retention strategies
- Portfolio showcasing similar projects

I'm looking for someone who can help us build something meaningful, not just another interface.