Mobile App Wireframes

I'm seeking a skilled designer to create wireframes for a mobile app aimed at enhancing user engagement. The app is specifically designed for iOS devices.

Key Requirements:
- Creation of intuitive and interactive wireframes
- Incorporation of user-centric design principles
- Experience in mobile app design, specifically for iOS
- Understanding of engagement-focused design strategies

Ideal candidates will have a strong portfolio of iOS mobile app wireframes and a proven track record of designing for user engagement. Please include relevant samples in your proposal.