Cross-Platform Mobile App UI/UX Design

I'm seeking an experienced UI/UX designer to create a mobile app interface for both iOS and Android platforms. The app will primarily serve as a utility tool.
we need to redesign this app totally
Key Requirements:
- Design a user-friendly and intuitive interface for a utility tool app.
- Ensure a consistent and seamless experience across both iOS and Android platforms.
- Create wireframes, prototypes, and high-fidelity designs.
- Collaborate with me to incorporate feedback and make necessary revisions.

Ideal Skills and Experience:
- Proven experience in designing mobile app interfaces, particularly for utility tools.
- Strong understanding of both iOS and Android design guidelines.
- Proficiency in design tools such as Sketch, Figma, or Adobe XD.
- Excellent communication skills and a portfolio showcasing relevant work.

Please provide samples of previous mobile app UI/UX projects and a brief proposal outlining your approach. Looking forward to your bids!