Digital Software E-commerce Website Development

I'm looking for a professional web developer with extensive experience in creating e-commerce websites specifically for selling digital products, particularly software.

Key Responsibilities:
- Develop a fully functional, user-friendly e-commerce website
- Incorporate features essential for software sales (suggested: License key management, Download management)
- Ensure the site is optimized for SEO and mobile devices

Ideal Skills:
- Proven experience in e-commerce website development
- Strong understanding of software sales requirements
- Skills in SEO and responsive design
- Knowledge of integrating license key and download management systems

Please provide examples of previous similar projects in your proposal.