E-commerce Site on CodeIgniter

I need a skilled developer to create an e-commerce website using CodeIgniter. The site will primarily sell physical goods.

Essential requirements:
- User account management
- Shopping cart
- Payment gateway integration

Ideal skills and experience:
- Proficiency in CodeIgniter
- Strong background in developing e-commerce platforms
- Experience with payment gateway integrations
- Ability to implement secure user account management systems
- Familiarity with responsive design for mobile and desktop

Please provide examples of previous work. Looking forward to your proposals!