Moniepoint, one of Africa’s leading fintechs, convened senior engineering practitioners from across Nigeria’s fintech ecosystem for the inaugural Moniepoint ‘Off the Record Engineering Mixer’, held in Lagos as part of the company’s ongoing effort to foster deeper technical exchange among engineering leaders in the industry.
The Mixer, which brought together senior engineers from leading fintech companies, including Flutterwave, Cowrywise and Nomba, had candid conversations around “Building for Scale, The Trade-offs of Distributed Systems in Fintech” and “Building Distributed Systems for POS at Scale.” Discussions examined the realities of operating financial technology infrastructure at scale, including system failures, network dependencies, architectural trade-offs, observability, security and designing for failure.
The company said convening senior engineering practitioners to examine operational realities reflects its view that the challenges of building at scale in African fintech are shared rather than proprietary, and that the industry improves when the people running these systems compare notes directly.
Moniepoint also used the platform to highlight its approach to building more resilient card payment systems and protecting customers from false debits, guided by a principle that customers should never be left carrying the cost of uncertainty created inside a system they rely on but cannot see into.
Speaking on the engineering philosophy behind this approach, Ayomide Kolawole, Engineering Manager, Card Payments, Moniepoint, said, “Building reliable payment infrastructure is about understanding every point at which a transaction can fail, determining what the system knows at each stage and designing the right response when things go wrong. Our responsibility is to ensure that customers are not left carrying the consequences of uncertainty created within a system they rely on.”
“For us, the goal is not simply to process transactions quickly, but to make sure that when something goes wrong, the customer experience does not become the cost of that failure,” he added.
Moniepoint’s card payments infrastructure processes more than 20 million transactions daily and is built around a deliberate approach to failure. When the system is sufficiently certain that a transaction is unlikely to succeed, it fails fast. Where the outcome remains uncertain, the system continues to establish what actually happened before presenting a definitive response to the customer.
A key component of this infrastructure continuously evaluates the health of individual issuing banks across individual processors, monitoring success rates and response times in real time. When a destination crosses a configured threshold, the system automatically stops routing transactions there, reducing prolonged waits and limiting the risk of transactions piling up behind the scenes.
The principles behind this approach also connected with the wider discussions at the Mixer. The sessions examined the trade-offs that accompany architectural decisions such as sharding, asynchronous processing and service decomposition, with speakers highlighting how solutions designed to address one challenge can introduce new operational and maintenance considerations elsewhere. Participants agreed that observability and security were similarly essential to understanding system behaviour, identifying emerging risks, and building resilience into financial technology infrastructure.
The sessions reinforced a central principle of engineering at scale. Reliability is not simply about building systems that work. It is about understanding how they fail, designing for uncertainty and ensuring that when failures occur, customers are protected from consequences they should never have to bear.
The Moniepoint Off the Record Engineering Mixer was created as an open forum for practitioners to move beyond conventional technical presentations and examine the failures, trade-offs and engineering decisions behind the systems powering financial services.
L-r: Akachi Ntukokwu (Lead, Engineering Infrastructure, Flutterwave), Temitope Akintola (Senior Backend Engineer, Moniepoint), David Uchenna (Associate VP of Engineering, Cowrywise) and Clement Oyeyemi (Technical Lead, Nomba) at the Off The Record Mixer which held at the Moniepoint HQ in Victoria Island, Lagos
