Senior Engineer

Boardroom Appointments; Johannesburg; On-site; ZAR 600 000 - 800 000; Full time

Job summary

A leading recruitment agency in Johannesburg is seeking a Senior Engineer with extensive experience in systems administration, particularly with Postilion EFT systems. The candidate should have a BSc in Computer Science and several relevant certifications. Responsibilities include maintaining system uptime, security compliance, and providing cross-functional support to clients.

Qualifications

• 5-8+ years experience as a Systems Administrator.
• SQL Certification (advantageous).
• Project Management Certification (recommended).

Responsibilities

• Maintain and configure Postilion EFT systems.
• Ensure SLA uptime targets are met.
• Test and validate new system releases and updates.

Skills

Experience administering MS Windows Server environments

Proficient with ACIs Postilion EFT Transaction Switch suite

Strong understanding of ATM, POS & mobile transaction flows

Familiar with PCI DSS, PA DSS & ISO8583 protocol

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

Education

BSc in Computer Science / Information Technology

Job description

Senior Engineer -Khenya

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

• Est 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