PHP Payment Gateway Integration Module
Employer
Content
Project parameters
Type of cooperationOne-time project
SectionWeb development
Prepaymentwithout prepayment
Payment methodsCash, Bank transfer
Acceptance of requestsfrom yesterday, 23:08 until Aug 23, 2026
Project description
Project Overview
We need a senior PHP developer to integrate a payment gateway API into our existing web platform. The module must handle transaction initiation, status callbacks via webhooks, refunds, and full audit logging.
Requirements
PHP 7.4+ compatible module
Webhook endpoint with HMAC signature verification
Transaction status polling fallback
Refund and partial refund support
Admin panel for transaction history
Unit tests for core logic
Deliverables
Standalone PHP module (PSR-4)
OpenAPI documentation
Integration guide
Budget negotiable for the right candidate.
We need a senior PHP developer to integrate a payment gateway API into our existing web platform. The module must handle transaction initiation, status callbacks via webhooks, refunds, and full audit logging.
Requirements
PHP 7.4+ compatible module
Webhook endpoint with HMAC signature verification
Transaction status polling fallback
Refund and partial refund support
Admin panel for transaction history
Unit tests for core logic
Deliverables
Standalone PHP module (PSR-4)
OpenAPI documentation
Integration guide
Budget negotiable for the right candidate.
