How Nigerian Neobank Kuda Built Its In-House Core Banking Application

Why It Matters

By internalizing its core banking system, Kuda gains operational independence, higher speed, and better margins, setting a benchmark for African fintechs seeking scalable, resilient infrastructure.

Key Takeaways

• Kuda launched NERV, an in‑house core banking platform
• Microservices architecture enabled 5,000 TPS scalability
• Parallel development avoided service disruption during migration
• Own core reduced third‑party operational risk
• Faster product rollout improved customer experience

Pulse Analysis

The Nigerian banking landscape has long depended on off‑the‑shelf core banking solutions, a model that lets startups focus on customer acquisition while outsourcing the ledger engine. As Kuda’s user base surged past one million, the limitations of its third‑party provider became evident: latency spikes, inability to customize, and a looming risk of service outages. Recognizing that a proprietary core could unlock both reliability and innovation, co‑founder and CTO Musty Mustapha championed the development of NERV in 2019, even though the venture required a multi‑million‑dollar investment and a culture shift toward engineering‑first thinking.

To meet the demanding transaction volumes of a digital‑first bank, Kuda abandoned monolithic designs in favor of a microservices architecture that could scale horizontally. Early load tests struggled to reach ten transactions per second, but systematic bottleneck analysis—particularly of cache connection handling—propelled performance past the internal target of 1,000 TPS and eventually to 5,000 TPS in simulated environments. The migration to production proved gritty; a mis‑configured live environment caused unexpected latency, forcing the team to revert to a stable staging setup before a successful cut‑over. The episode underscored the value of parallel development and transparent user communication.

Owning NERV has reshaped Kuda’s business model: operational risk tied to third‑party downtime has been eliminated, end‑of‑day processes are fully automated, and new products such as multi‑currency wallets and credit lines can be launched without waiting for vendor road‑maps. These efficiencies translate into stronger unit economics and faster customer value delivery, a competitive edge that other African fintechs are now eyeing. As more banks contemplate in‑house cores, Kuda’s experience demonstrates that a disciplined engineering culture, incremental rollout, and proactive communication can turn a costly gamble into a strategic asset.