Senior Engineer
Senior Engineer
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Job Description
Senior Engineer - Ghana
Qualifications & Experience
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BSc in Computer Science / Information Technology
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5-8 years experience as a Systems Administrator
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SQL Certification (advantageous)
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Project Management Certification (recommended)
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Experience administering MS Windows Server environments
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Experience with EFT & eCommerce payment systems
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Proficient with ACIs Postilion EFT Transaction Switch suite:
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Real-Time Framework (v4.x & 5.x)
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Post Office PostCard Portal TermApp Postilion Active-Active
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Knowledge of payment card tech (EMV magnetic stripe contactless)
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Understanding of card types (debit credit pre-paid gift cards)
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Knowledge of Hardware Security Modules
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Experience with Postilion upgrades migrations monitoring maintenance
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Strong understanding of ATM POS & mobile transaction flows
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Familiar with PCI DSS PA DSS & ISO8583 protocol
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Knowledge of 3rd party interfaces (Visa Mastercard UPI Bankserv etc.)
Key Responsibilities
System Configuration Monitoring & Support
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Maintain and configure Postilion EFT systems
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Ensure SLA uptime targets are met
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Implement system changes under change control
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Monitor production systems and respond to alerts
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Manage EFT software installations and fault call allocations
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Define operational routines and service metrics
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Conduct routine audits and system maintenance
System Release & Testing
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Test and validate new system releases and updates
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Ensure accuracy of release/upgrade testing
Security Compliance
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Ensure full PCI and security task compliance
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Execute recurring security tasks (e.g. encryption key changes)
Cross-Functional Support
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Resolve customer queries and provide technical support
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Assist operations with environment prep for patching
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Specify test and implement new systems or upgrades
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Conduct disaster recovery planning and testing
Documentation & Capacity Planning
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Maintain up-to-date technical and DR documentation
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Forecast and plan system capacity accurately
Quality Assurance & Supervision
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Align test strategies with Postilion changes
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Supervise and QA junior engineer work
Client Communication
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Establish technical communication with clients
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Provide clear and timely management/client feedback
Way of Work
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Ensure proper formatting spelling and professionalism in all documents
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Adhere to approval processes and meet all deadlines
Time-Sheet Management
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Track time in Jira (Tempo) 8 hrs/day average
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Use accurate project codes
Business Risk Management
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Comply with company policies and procedures
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Complete all mandatory training
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Proactively raise business risks to manager
Employment Type
Full Time
