Senior Engineer

Senior Engineer - South Africa

Qualifications & Experience

• BSc in Computer Science / Information Technology

• 5-8+ years experience as a Systems Administrator

• SQL Certification (advantageous)

• Project Management Certification (recommended)

• Experience administering MS Windows Server environments

• Experience with EFT & eCommerce payment systems

• Proficient with ACIs Postilion EFT Transaction Switch suite:

  • Real-Time Framework (v4.x & 5.x)

  • Post Office, PostCard, Portal, TermApp, Postilion Active-Active

• Knowledge of payment card tech (EMV, magnetic stripe, contactless)

• Understanding of card types (debit, credit, pre-paid, gift cards)

• Knowledge of Hardware Security Modules

• Experience with Postilion upgrades, migrations, monitoring, maintenance

• Strong understanding of ATM, POS & mobile transaction flows

• Familiar with PCI DSS, PA DSS & ISO8583 protocol

• Knowledge of 3rd party interfaces (Visa, Mastercard, UPI, Bankserv, etc.)

Key Responsibilities

System Configuration, Monitoring & Support

• Maintain and configure Postilion EFT systems

• Ensure SLA uptime targets are met

• Implement system changes under change control

• Monitor production systems and respond to alerts

• Manage EFT software installations and fault call allocations

• Define operational routines and service metrics

• Conduct routine audits and system maintenance

System Release & Testing

• Test and validate new system releases and updates

• Ensure accuracy of release/upgrade testing

Security Compliance

• Ensure full PCI and security task compliance

• Execute recurring security tasks (e.g. encryption key changes)

Cross-Functional Support

• Resolve customer queries and provide technical support

• Assist operations with environment prep for patching

• Specify, test, and implement new systems or upgrades

• Conduct disaster recovery planning and testing

Documentation & Capacity Planning

• Maintain up-to-date technical and DR documentation

• Forecast and plan system capacity accurately

Quality Assurance & Supervision

• Align test strategies with Postilion changes

• Supervise and QA junior engineer work

Client Communication

• Establish technical communication with clients

• Provide clear and timely management/client feedback

Way of Work

• Ensure proper formatting, spelling, and professionalism in all documents

• Adhere to approval processes and meet all deadlines

Time-Sheet Management

• Track time in Jira (Tempo), 8 hrs/day average

• Use accurate project codes

Business Risk Management

• Comply with company policies and procedures

• Complete all mandatory training

• Proactively raise business risks to manager