Case Study
Payments, Device Systems & Legacy Modernisation
Integrated payments, POS, ticketing, gates and device drivers, and completed major upgrades to long-running device systems.
Business Context
Transport, ticketing and retail scenarios required multiple payment methods, back-end systems and physical devices to operate together reliably.
Constraints & Challenges
The solution involved dependencies across websites, servers, databases, POS, ticketing machines, gate control, mobile applications and device drivers.
My Role
Responsible for software and database design, interface development, system integration, testing support and technical documentation.
Technical Judgement
Considered payment flows, device behaviour, interface dependencies, compatibility and long-term supportability together in solution decisions.
Actions Taken
Completed VISA/Mastercard payment-interface and Alipay retail-system integration, and delivered upgrades for ticketing machines, add-value machines and gate systems.
Publicly Shareable Evidence
Practical delivery experience in payment-interface integration, device-driver migration, system upgrades and device integration.
Business Value
Supported continued payment and device services, reduced legacy constraints, and improved integration and maintenance capability.
