Digital Product Sales Website & IMGUI

I'm looking for a skilled web developer to design a website for purchasing digital software products. Additionally, I need an Interactive GUI (IMGUI) for Windows.

Key requirements:
- Website should include:
- Payment processing
- Product reviews
- IMGUI for Windows to access digital products with a HWID locking key system for individual users

Ideal skills and experience:
- Web development, especially e-commerce
- Experience with IMGUI design for Windows
- Familiarity with payment processing systems
- User-friendly UI/UX design

Please provide examples of previous similar work.