Payment Gateway Integration — PHP Developer

Employer
Web
Project parameters
Type of cooperationOne-time project
SectionWeb development
Prepaymentwithout prepayment
Payment methodsCash, Bank transfer
Acceptance of requestsfrom Apr 2, 2026 until Apr 16, 2026
Project description
We need a skilled PHP 8 developer to integrate a payment processing API into our existing e-commerce platform. What to do: - Connect to the payment provider REST API
- Implement callback/webhook handling with signature verification
- Integrate into the checkout flow
- Handle payment status updates and refunds
- Write unit tests
- Provide technical documentation Stack: PHP 8.1+, MySQL, Nginx. Budget: $250 fixed. Timeline: 14 days.