PHP M-Pesa Till Integration

I need a developer who has already handled M-Pesa Till integrations to drop straight into my PHP site and wire up secure, reliable payments. The codebase is clean and MVC-style, but the checkout flow is still missing the M-Pesa layer—STK push, confirmation callback, and automatic reconciliation... (Budget: £18 - £36 GBP, Jobs: API Integration, Git, JavaScript, MVC, MySQL, Payment Processing, PHP, Software Architecture)