E-commerce Website Development -- 2

I need a comprehensive e-commerce website to sell physical products. The site should have the following essential features:

- Instant download after purchase
- Subscription management
- License management

The site must integrate with the following payment gateways: PayPal, Stripe, and Square.

Ideal skills and experience:
- Proven experience in developing e-commerce websites, particularly for physical products
- Strong understanding of subscription and license management systems
- Expertise in integrating multiple payment gateways
- Familiarity with ensuring secure and seamless transactions
- Ability to create user-friendly interfaces for a smooth customer experience

Please provide examples of similar work done and your approach to this project.