Senior POS Mobile Engineer

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 Senior Mobile Engineer (POS Terminal), you will be responsible for building, optimizing, and maintaining high-performance Android-based POS applications used across large-scale transaction environments. You will work closely with Mobile Architects, Backend Engineers, Product Managers, and Hardware teams to deliver reliable, secure, and scalable POS features. This role requires strong hands-on Android expertise, deep understanding of payment flows, and experience integrating with POS hardware and EMV standards. You will own complex features end-to-end while contributing to system design discussions and ensuring engineering excellence across the codebase. What you’ll get to do Feature Development & Ownership Design, implement, and maintain Android-based POS terminal applications (Java/Kotlin). Own end-to-end development of key transaction flows (sales, refunds, reversals, settlement). Collaborate with backend teams to integrate APIs and ensure reliable transaction synchronization. Implement offline-first capabilities and manage edge-case handling in low-connectivity environments. Payments & Security Integrate EMV chip, contactless (NFC), and card-present transaction flows. Work with encryption standards, key management processes, and secure payment SDKs. Ensure compliance with payment security best practices. Troubleshoot and resolve transaction-related issues in production Hardware Integration Integrate and maintain support for POS peripherals (card readers, pin pads, printers, scanners). Work with OEM SDKs for Android-based POS terminals. Handle Bluetooth, USB, and embedded hardware communication layers. Code Quality & Engineering Standards Write clean, maintainable, testable code following established architectur e patterns. Participate in code reviews and provide constructive feedback. Contribute to improving CI/CD pipelines and release processes. Support debugging, monitoring, and performance optimization efforts.