Mambu’s Justus Roux Reveals What He’d Do If He Built A Bank

Why It Matters

Building banks around trust and flexible technology is essential for competing in today’s digital‑first financial ecosystem.

Key Takeaways

• Trust is the foundational pillar for any new bank.
• Customers demand 24/7, borderless banking accessibility anytime anywhere.
• Technology must be scalable and future‑proof from inception.
• Product relevance hinges on continuous adaptation to evolving customer needs.
• Banks may evolve into tech platforms rather than traditional institutions.

Summary

In a brief interview, Mambu co‑founder Justus Roux outlines how he would design a bank from scratch, emphasizing that the venture must start with trust and a deep understanding of modern customers’ expectations.

Roux argues that the traditional brick‑and‑mortar model is obsolete; consumers now expect 24/7, borderless access and the ability to bank from any device. To meet that demand, the core technology stack must be scalable, future‑proof, and capable of rapid product iteration.

He notes, “No‑one banking hours is a thing of the past,” and questions whether the new entity should even call itself a bank or simply act as a technology provider delivering financial services.

The implication for incumbents and fintech startups alike is clear: success will depend on building trust, leveraging adaptable tech platforms, and continuously refreshing product offerings to stay relevant in an increasingly digital financial landscape.

Original Description

Justus Roux, Solutions Engineering Manager at Mambu sits down for a conversation with FF News about the world of SME banking. In this video, Justus reveals what he’d do if he were to build a bank in the modern ecosystem.

“I think the first thing is to understand what the customer's needs are. Customers are developing quite quickly and the concept of a bank is changing away from bricks and mortar to actual accessibility and trust. So, the first thing I need to do when I build a bank understands how I can gain the trust of my clients and understand their needs.”

“Nowadays, banking hours are a thing of the past. No one goes to a bank because it closes at 3. I want to bank anytime I want, in any country, I want because that’s my lifestyle. So, does the bank actually have to be a bank or can it be a tech provider?”