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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-solving skills with an ability to manage complex system interactions and adapt to changing requirements. Strong communication skills, capable of presenting complex technical concepts clearly to both technical and non-technical stakeholders. Leadership abilities with a focus on mentoring engineers and driving process improvements within the team. What we can offer you Culture -We put our people first and prioritize the well-being of every team member. We’ve built a company where all opinions carry weight and where all voices are heard. We value and respect each other and always look out for one another. Above all, we are human. Learning - We have a learning and development-focused environment with an emphasis on knowledge sharing, training, and regular internal technical talks. Compensation - You’ll receive an attractive salary, pension, health insurance,annual bonus, plus other benefits. What to expect in the hiring process A preliminary phone call with one of our recruiters A Takehome Hackerrank test. A Technical interview session with our Engineering Team A Technical and Behavioural Interview with our Head of Mobile Engineering A Behavioral and Technical interview with a member of the Executive team. Moniepoint is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees and candidates. Originally posted on Himalayas