App UI Enhancement

I'm looking for a skilled UI/UX designer to improve the layout and design of my app.

Key requirements:
- Improve layout and design for better aesthetics and user experience.
- Experience in modern, minimalistic design preferred.

Ideal candidates will have:
- Strong portfolio showcasing similar projects.
- Expertise in user-centered design principles.
- Proficiency in design tools (e.g., Sketch, Figma, Adobe XD).

Please provide samples of previous work and a brief overview of your design approach.