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By Adewunmi Aladenusi
When people think of product design, it is easy to associate it solely with aesthetically pleasing interfaces or layouts that “look good.” The truth is, product design is less concerned with decorative elements and is more about other metrics that keep the business running. A product designer’s role is to build experiences that directly move the levers of a business — such as conversion, retention, revenue, and eventually, trust. In the last six years, while working across fintech, AI-powered consumer products and proptech, I’ve seen how much of a difference design choices, when tied to metrics, can make between a product that struggles and one that thrives beyond its launch date.
Every product begins with a question: what problem are we solving, and for whom? In the early stages of product development, the designer acts as both researcher and translator, drawing a wealth of information from user conversations, usability tests, and behavioral patterns to understand pain points and build design flows that work. Beyond being an exercise in user empathy, it is business intelligence. Think of a hesitant sign-up flow as a conversion gap. A confusing checkout goes beyond a botched user experience; it is lost revenue. When I worked on the design for merchant onboarding on mobile at Flutterwave, aesthetic improvement was at the bottom of my thoughts. The most important objective was to activate more businesses and reduce drop-offs. By aligning each design decision with this goal in mind, we successfully onboarded over 180,000 businesses, translating research-driven choices into tangible growth for the company.
Once insights are gathered, the design process turns into aligning human behavior with business goals. Here, design becomes a growth lever, where a button’s placement, the tone of copy, or the smoothness of a transaction flow can determine whether a user completes an action or abandons it. At Ladder Africa, refining consumer onboarding and first-time savings flows helped scale sign-ups from 1,000 to 12,000 in under a year. Beyond the numbers, we introduced a holiday savings challenge that leveraged behavioral design, encouraging users to develop saving habits through a designated set of triggers. That single feature boosted deposits by 40% in five months. What appeared to be a design tweak on the surface was, in reality, a business intervention.
But even after the product goes live, the work of a product designer continues. Launching is only the beginning of an endless feedback loop used for improvements and debugging. Real users expose gaps that no design sprint can anticipate, and iteration becomes essential. At Bongalow, our decision to rethink the financing experience went beyond simplifying the loan application flow; it also meant reducing the burden on customer support. The application tracker redesign cut support tickets by 27%. It assisted our cost-saving measures while also increasing account creation by 15%. Here, design not only improved the user experience but also strengthened operational efficiency.
There is also a subtler dimension to design’s impact, one that isn’t always captured neatly in dashboards. Consistency, clarity, and intuitive experiences build trust, and trust is the real currency that keeps users coming back. In industries like fintech, a botched transaction flow design erodes confidence in the product altogether. On the other hand, a reliable, well-thought-out flow reassures users, fostering loyalty and keeping them engaged.
There is a simple principle that guides all this: design must tie back to measurable outcomes. Without a metric, be it conversion, churn, support costs, or revenue, it risks becoming ornamental. Good design often goes unnoticed due to the fact that it seamlessly supports both the user’s goals and the company’s bottom line. This is why I see product design as a team sport, one that thrives at the intersection of research, business strategy, and technology. The most successful features emerge from this collaboration, where data informs design decisions and design thinking shapes business strategy.
Pixels and aesthetics are only a small aspect of a design team’s agenda. A product designer is charged with the responsibility of shaping outcomes. Every screen and user journey must justify its existence by improving life for the user while securing the product’s place in the market. That is how design impacts business metrics, and why product designers belong at the heart of every company’s growth story.
