WordPress Booking Plugin Extension Developer

Advanced WordPress / WooCommerce Developer – Booking System We are looking for an experienced PHP / WordPress / WooCommerce developer to extend an existing custom booking plugin. The existing system is operational. This is an extension of an existing codebase, not a rebuild. Required expertise Advanced PHP & WordPress plugin development WooCommerce development and payment workflows Payment authorization / delayed capture MySQL transactions and race-condition-safe processing Booking/reservation and capacity systems Secure token-based invitation/acceptance workflows WordPress Cron and automated workflows Testing, debugging and regression prevention Experience extending existing custom plugins The project includes complex session processing, automated teacher assignment, payment handling and replacement-session logic. Important Development exclusively on staging No production access Existing functionality must be preserved No unnecessary third-party dependencies Thorough testing is required Fixed Price: USD 180 Strictly non-negotiable. The complete agreed scope must be delivered for USD 180. Please answer briefly: Years of professional PHP/WordPress experience? One relevant booking/reservation project? Experience with payment authorization and delayed capture? How would you prevent two simultaneous bookings from exceeding capacity? How would you prevent two teachers from being assigned simultaneously? Confirm: USD 180 fixed and non-negotiable? (Yes/No) Confirm: staging-only development with no production access? (Yes/No) Generic applications without relevant experience will not be considered. The detailed technical specification will be provided to shortlisted candidates. The existing plugin architecture must be understood and extended rather than unnecessarily rebuilt.