E-commerce App & Website Development

I'm looking to create a modern and clean e-commerce app and website for selling mobile displays, repair services, accessories, and some electronic items.

Key Requirements:
- Both web and mobile compatibility
- Modern and clean design
- Admin panel with user management

Ideal Skills and Experience:
- Experience in building e-commerce platforms
- Strong UI/UX design skills for modern layouts
- Backend development expertise for robust admin panels

Please provide examples of previous work and estimate timelines.