Unilevel MLM System Development

I need a Unilevel MLM system built on PHP. The system should have customer user roles and include the following key features:

- Commission tracking
- Referral bonuses
- Sales reports

Ideal skills and experience:
- Strong PHP development skills
- Experience with MLM systems, especially Unilevel plans
- Database management
- Familiarity with commission structures and reporting tools

Please provide examples of similar work done.