I design and support the ATM & CRM systems behind Cambodia's self-service banking — from EMV card-scheme testing to transaction workflow design and production releases, with 6+ years of hands-on experience.
I've spent the last 6+ years at ABA Bank on the team that keeps self-service banking running — supporting, testing, and building the software behind every ATM and CRM transaction.
That's meant everything from UAT test planning across pre-production and production, to designing transaction workflows, running EMV card-scheme simulations for Visa, Mastercard and UPI, and working hands-on with vendors to resolve issues quickly.
Alongside the terminal work, I've built a parallel set of skills in web development and UX/UI design — HTML/CSS/JS, Angular, Figma — which is how this site came to exist.
2023 — Present
ABA Bank
Own UAT test planning through pre-production and production for ATM/CRM releases
Design and implement ATM/CRM transaction workflows from business requirements
Run card-scheme simulation testing for Visa, Mastercard, UPI and CSS
Coordinate with vendors and cross-functional teams to resolve live issues
Manage project timelines in Jira and report progress to line management
2021 — 2023
ABA Bank
Troubleshot transactional errors across ATM, CRM, CDM and CIM networks
Investigated disputes using CCTV footage and ticketing systems
Planned cash monitoring and replenishment schedules
Reported incidents to relevant teams and departments
2019 — 2021
ABA Bank
Verified ATM/CRM balances and coordinated cash refill and collection
Resolved branch complaints on terminal issues
Monitored machine start/stop status and card collection
2017–2023
Royal University of Phnom Penh
2017–2019
Norton University