Principal Mobile Engineer (POS Terminal)

Who we are Moniepoint Inc. is Africa’s all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, cross-border, and business management tools each month. As Nigeria’s largest merchant acquirer, we power most of the country’s point-of-sale (POS) transactions. Through our subsidiaries, Moniepoint Inc. processes over $250 billion in digital payment transaction value annually. About the role As a Principal Mobile Engineer (POS-Terminal) at Moniepoint, you will be responsible for designing and leading the architecture of our POS terminal solutions across multiple platforms. You will ensure the scalability, security, performance, and reliability of our POS systems and related applications, including mobile apps for repair scheduling and maintenance. While the majority of our terminals are currently based on Android Native, your expertise in cross-platform solutions (e.g., Flutter, C, JavaScript) will be crucial as we expand and diversify our portfolio.You’ll play a critical role in shaping the direction of our POS-related products, collaborating with cross-functional teams, and ensuring the technical vision aligns with the company’s broader strategic goals. Curious about what makes Moniepoint an incredible place to work? Check out posts on how we cultivate a culture of innovation, teamwork, and growth. What you will do: • Lead the design and architecture of POS terminal solutions, ensuring security, scalability, performance, and integration with various hardware and payment systems. • Develop and maintain architectural documents and diagrams for POS terminal systems, ensuring all platforms are well documented and up to date. • Make architectural decisions on POS terminal software, integrating various payment technologies, EMV standards, and ensuring hardware compatibility. • Lead the development of POS-related applications • Optimize system performance and security, particularly around payment processing and EMV protocols. • Participate in planning sessions with product and engineering teams to ensure solutions meet market needs and business goals. • Conduct code reviews and ensure best practices for mobile and embedded systems development, especially for Android Native development. • Define and enforce software engineering best practices across the POS and related teams to improve efficiency and developer productivity. • Ensure the stability and reliability of POS terminal products and applications, monitoring system performance and troubleshooting as necessary. • Provide technical mentorship to engineering teams, helping them grow their skills and contribute to the broader technical vision. • Participate in the hiring process, screening engineers with expertise in POS systems, mobile, and embedded development. To succeed in this role, we think you should have: • At least 8 years of experience in system design, architecture, and development, specifically in the POS terminal domain. • Strong expertise in Android Native development (Java/Kotlin), with a deep understanding of Android-based POS terminal solutions. • Experience in cross-platform mobile development, such as Flutter , and familiarity with other POS application platforms (e.g., C, JavaScript) is a plus. • Strong knowledge of EMV (Europay, Mastercard, and Visa) security protocols, including chip-based transactions, encryption, and key management. • Experience with hardware integration for POS devices, such as card readers, pin pads, printers, and other peripherals. • Deep understanding of payment systems architecture , including integration with payment processors and gateways. • Knowledge of software quality assurance principles and their application in financial systems. • Excellent problem