Minimalist Mobile App UI Design

I'm looking for a designer to create a front face for a mobile app, that is minimalist and sleek. The design should predominantly feature a black color scheme. No actual app building is needed; this is purely a design task.

Ideal experience includes:
- Mobile app UI/UX design
- Proficiency in minimalist design principles
- Experience with a predominantly monochrome color scheme

Please provide a portfolio showcasing similar projects you've completed.