Senior Software Engineer – Prepaid Card Payments at Onafriq

Key Responsibilities

• Design, develop, and maintain payment processing applications using C++, python, Bash and PL/SQL.
• Assist with daily support activities and identify automation opportunities
• Implement and enhance systems that comply with Visa and Mastercard TPP requirements, including certification and compliance updates.
• Work with ISO 8583 and PostBridge protocols to ensure reliable message parsing, routing, and settlement.
• Support dual message processing for prepaid card transactions and contribute to expanding capabilities for debit card processing.
• Collaborate with business, operations, and compliance teams to deliver solutions aligned with financial industry regulations and standards.
• Troubleshoot and resolve complex transaction processing issues in production environments.
• Optimize system performance, scalability, and security for mission-critical applications.
• Mentor junior engineers and provide technical leadership in payments domain knowledge.

Qualifications

• Bachelor’s degree in Computer Science, Engineering, or related field (Master’s preferred).
• 7+ years of software development experience, with expert-level proficiency in C++ and PL/SQL.
• Strong background in Visa/Mastercard payment processing as a Third-Party Processor (TPP).
• Proven experience with ISO 8583 message specifications and PostBridge.
• Hands-on experience with dual message credit card processing.
• Banking or fintech industry experience required.
• Familiarity with debit card processing highly desirable.
• Knowledge of transaction security, encryption, and PCI DSS compliance.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent communication and teamwork skills.