Crypto Payment and API Integration

I need an expert developer to enhance my existing PHP and Laravel trading script with the following functionalities:

- Payment Gateway Integration for Cryptocurrency Auto Payments
- Commission Management for Affiliate and Referral Links
- API Connection to Alpha Vantage for Forex and Crypto Data

Ideal skills and experience:
- Proficiency in PHP and Laravel
- Experience with payment gateway integration
- Familiarity with affiliate systems and commission management
- Knowledge of Alpha Vantage API and financial data handling