BASE24-EPS Engineer

Oss Group
Melbourne, VICFull time

Listed 24 Sep 2026

Senior BASE24-eps Engineer

We are looking for an experienced Senior BASE24-eps Engineer with a minimum of 5+ years' hands-on ACI BASE24-eps experience to work within a high-volume banking and payments environment.

You will support, troubleshoot and maintain a business-critical BASE24-eps environment while also developing, customising and enhancing payment functionality.

Key responsibilities:

  • Provide hands-on L2/L3 production support for BASE24-eps
  • Investigate and resolve payment transaction failures and production incidents
  • Perform Root Cause Analysis (RCA) and implement permanent fixes
  • Develop, customise, configure and enhance BASE24-eps
  • Support ATM, POS, EFT and card payment processing
  • Troubleshoot authorisation, routing, switching, settlement and reconciliation
  • Support interfaces with Visa, Mastercard, payment networks and host banking systems
  • Monitor system health, performance and transaction processing
  • Support releases, deployments, upgrades and payment scheme changes
  • Participate in testing and implementation of BASE24-eps enhancements
  • Support high availability, DR and failover activities
  • Work within a 24x7 production support environment
  • Work closely with development, infrastructure, QA and payments teams

What we're looking for:

  • Minimum 5+ years' hands-on BASE24-eps experience
  • Strong BASE24-eps production support experience
  • Hands-on BASE24-eps development/customization experience
  • Strong knowledge of payment switching and card transaction processing
  • Experience with ATM/POS acquiring and EFT
  • Understanding of the end-to-end card transaction lifecycle
  • Experience troubleshooting high-volume payment environments
  • Strong Incident, Problem and Change Management experience
  • Banking or Financial Services experience
  • Strong communication and problem-solving skills