Senior Software Engineer – Prepaid Card Payments job at Onafriq
Posted by: great-volunteer
Posted date: 2025-Dec-30
Location: Kampala
Senior Software Engineer – Prepaid Card Payments 2025-12-29T09:23:17+00:00 Onafriq https://cdn.ugashare.com/jsjobsdata/data/employer/comp_6873/logo/Onafriq.png https://onafriq.com/ FULL_TIME Kampala Kampala 00256 Uganda Professional Services Science & Engineering, Computer & IT 2026-01-10T17:00:00+00:00 8 Who We Are Onafriq is an omnichannel network of networks, making borders matter less by providing our partners with a single pathway to unlock the full power of cross-border and cross-platform payment solutions. With a network spanning 40 African markets, Onafriq connects over 500 million mobile money wallets, 200 million bank accounts, and 300,000 agents in Nigeria, enabling domestic and cross-border disbursements and collections, card issuing and processing, agency banking, and treasury services. By connecting global and regional enterprises, mobile money operators, money transfer operators, banks, fintechs, global development organisations, and online and offline merchants, supported by world-class regulatory and compliance capabilities and a strong regional presence in 10 offices in Africa, and others in the UK, US, and China, Onafriq is ushering in a new era of access for people across the African continent and beyond. About the Role We are seeking a highly skilled and experienced Senior Software Engineer with deep expertise in payments processing and strong technical proficiency in C++ and PL/SQL. The ideal candidate will have hands-on experience with Visa and/or Mastercard processing as a Third-Party Processor (TPP), a solid understanding of ISO 8583 and PostBridge specifications, and a background in the banking or fintech sector. This role will focus on designing, developing, and maintaining high-performance, secure payment processing applications with emphasis on dual message prepaid card processing and an interest in extending into debit card processing. The position is location agnostic. (Lagos, Nigeria/ Nairobi, Kenya/ Johannesburg, South Africa/ Zimbabwe) 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.
Preferred Skills - Experience with switching platforms and real-time transaction processing systems.
- Exposure to cloud-native architectures and containerized deployments (Docker, Kubernetes).
- Knowledge of fraud detection, settlement, and reconciliation processes.
- Familiarity with Agile/Scrum methodologies.
Why work for us: - We work at the very cutting edge of fintech in Africa.
- We solve relevant problems for Africa and the world in hope of continuing to make an impact on the millions, if not billions, of users who also believe in what we do.
- We have a very diverse work environment with over 28 nationalities represented and continually strive to build a culture of caring and execution.
- We operate a flexible working and unlimited leave policy.
- We offer a competitive salary package and bonuses.
- We prioritize the overall well-being of our staff through various initiatives aimed at ensuring they reach their full potential in a supportive environment.
- Work on high-impact products used across Africa and beyond.
- Collaborative, inclusive, and innovative engineering culture.
- Opportunities for growth, learning, and making a difference.
- 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.
- C++
- PL/SQL
- Python
- Bash
- Visa and/or Mastercard processing as a Third-Party Processor (TPP)
- ISO 8583
- PostBridge
- Dual message prepaid card processing
- Debit card processing
- Transaction security
- Encryption
- PCI DSS compliance
- Analytical skills
- Troubleshooting skills
- Problem-solving skills
- Communication skills
- Teamwork skills
- Switching platforms
- Real-time transaction processing systems
- Cloud-native architectures
- Docker
- Kubernetes
- Fraud detection
- Settlement
- Reconciliation processes
- Agile/Scrum methodologies
- 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.
JOB-69524885b379b Vacancy title:
Senior Software Engineer – Prepaid Card Payments Jobs at:
Onafriq Deadline of this Job:
Saturday, January 10 2026 Duty Station:
Kampala | Kampala Summary
Date Posted: Monday, December 29 2025, Base Salary: Not Disclosed JOB DETAILS: Who We Are Onafriq is an omnichannel network of networks, making borders matter less by providing our partners with a single pathway to unlock the full power of cross-border and cross-platform payment solutions. With a network spanning 40 African markets, Onafriq connects over 500 million mobile money wallets, 200 million bank accounts, and 300,000 agents in Nigeria, enabling domestic and cross-border disbursements and collections, card issuing and processing, agency banking, and treasury services. By connecting global and regional enterprises, mobile money operators, money transfer operators, banks, fintechs, global development organisations, and online and offline merchants, supported by world-class regulatory and compliance capabilities and a strong regional presence in 10 offices in Africa, and others in the UK, US, and China, Onafriq is ushering in a new era of access for people across the African continent and beyond. About the Role We are seeking a highly skilled and experienced Senior Software Engineer with deep expertise in payments processing and strong technical proficiency in C++ and PL/SQL. The ideal candidate will have hands-on experience with Visa and/or Mastercard processing as a Third-Party Processor (TPP), a solid understanding of ISO 8583 and PostBridge specifications, and a background in the banking or fintech sector. This role will focus on designing, developing, and maintaining high-performance, secure payment processing applications with emphasis on dual message prepaid card processing and an interest in extending into debit card processing. The position is location agnostic. (Lagos, Nigeria/ Nairobi, Kenya/ Johannesburg, South Africa/ Zimbabwe) 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.
Preferred Skills - Experience with switching platforms and real-time transaction processing systems.
- Exposure to cloud-native architectures and containerized deployments (Docker, Kubernetes).
- Knowledge of fraud detection, settlement, and reconciliation processes.
- Familiarity with Agile/Scrum methodologies.
Why work for us: - We work at the very cutting edge of fintech in Africa.
- We solve relevant problems for Africa and the world in hope of continuing to make an impact on the millions, if not billions, of users who also believe in what we do.
- We have a very diverse work environment with over 28 nationalities represented and continually strive to build a culture of caring and execution.
- We operate a flexible working and unlimited leave policy.
- We offer a competitive salary package and bonuses.
- We prioritize the overall well-being of our staff through various initiatives aimed at ensuring they reach their full potential in a supportive environment.
- Work on high-impact products used across Africa and beyond.
- Collaborative, inclusive, and innovative engineering culture.
- Opportunities for growth, learning, and making a difference.
Work Hours: 8 Experience in Months: 84 Level of Education: bachelor degree Job application procedure Application Link: Click Here to Apply Now
|