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Designing at the Intersection of Function & Emotion

From micro-mobility to finance and healthtech, my work blends research, strategy, and design craft to deliver experiences that are intuitive, inclusive, and business-aligned. Explore selected projects below.

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Tier mobility

Boosted rider retention by 30% through a gamified loyalty experience

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Infinite software

Defined end-to-end UX flows for a white-label B2B platform in 3 weeks

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Rapid pay

Streamlined digital banking UI,
improving task success by 40%

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Kudos

Elevated brand & product usability for a startup entering Series A

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NHS Digital

Improved
onboarding with inclusive, accessible design

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The sole supplier

Increased product engagement with real-time sneaker drop alerts

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Tier Mobility

At Tier Mobility, as a Senior Product Designer, I led the creation and execution of a highly successful loyalty program through the Tier.app. This initiative boosted revenue by 30%, showcasing your adeptness in growth and monetization strategies. My approach included thorough market analysis, iterative design processes, cross-functional collaboration, and data-driven optimization. The program's success underscored the pivotal role of design thinking in driving business growth and customer engagement in the micromobility industry.

Infinite Software

At Infinite Software, I led the design and launch of a task automation feature that revolutionized project management on infinite.software, driving a 35% boost in user productivity. My role encompassed strategic market analysis, iterative design processes, and seamless cross-functional collaboration to ensure a data-driven, user-centric solution. By spearheading this initiative, I not only enhanced Infinite Software's reputation as a leader in project management solutions but also demonstrated the transformative power of design-driven innovation in optimizing workflows and driving business growth.

Rapid Pay

As a key member of the design team at Rapid Pay, I contributed significantly to the development of the Rapid Pay Design System, a comprehensive framework that streamlined user experiences across the platform. Additionally, I took the lead in designing the public banking data protocol, a critical component of Rapid Pay's infrastructure, ensuring seamless and secure data exchange between banking institutions. My responsibilities encompassed guiding the design process, prototyping intricate interactions, and navigating the challenges of presenting dense content in a user-friendly manner. These efforts culminated in the successful implementation of robust design solutions that enhanced usability, scalability, and trustworthiness within Rapid Pay's ecosystem, ultimately driving adoption and fostering long-term growth.​​​​​​​

Kudos

As a UX/UI Designer at Kudos, a premier television production company under Banijay UK, I played a pivotal role in enhancing user experiences across digital platforms. Collaborating closely with stakeholders, I crafted intuitive and visually engaging interfaces that resonated with audiences worldwide. Leveraging my expertise in user-centered design principles, I ensured seamless navigation and accessibility, catering to diverse user needs and preferences. By integrating innovative design solutions, I contributed to elevating Kudos' online presence and amplifying its reputation as a leading force in scripted content creation.

NHS Digital

As a Senior Product Designer at Synoptic Reactivate (NHS Digital), I led the design and development of a real-time insights dashboard, a crucial tool that helped safeguard lives and ensure business continuity during the pandemic. Overseeing the entire product design lifecycle, I guided a team of designers in crafting intuitive, visually compelling interfaces that delivered timely, actionable insights.

Through close collaboration with cross-functional development teams, I ensured seamless integration of design systems aligned with company principles, enhancing usability and scalability. This resulted in a robust dashboard solution adopted by companies, schools, and organizations, empowering them to navigate the challenges of the pandemic with confidence and resilience.

The sole supplier

As a Senior Product Designer at The Sole Supplier, I led the design and launch of an innovative sneaker customization platform, transforming user engagement and driving revenue growth. This initiative, launched on thesolesupplier.co.uk, resulted in a 40% increase in sales, reinforcing the brand’s position as a leading sneaker marketplace.

My approach combined in-depth market research, iterative design methodologies, and data-driven optimization, ensuring a seamless and engaging user experience. Through cross-functional collaboration with engineers, marketers, and stakeholders, I crafted a platform that not only resonated with sneaker enthusiasts but also demonstrated the business impact of strategic, design-led innovation within the fashion and streetwear industry.

Impact & Achievements

Showcasing a decade of design leadership, user research, and innovation—driving growth through meaningful, user-centered experiences.

10+ Years

Product Design & UX Strategy

Bridging design, business, and technology to deliver high-impact, scalable solutions across mobile and web platforms.

75+

UX Experiments
& A/B Tests

Led iterative experiments using behavioral analytics, heatmaps, and user feedback to refine journeys and boost engagement.

100+

Cross-Functional Collaborations

Partnered with engineering, product, marketing, and executive teams to align vision and execution from MVP to launch.

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© 2025 Leonardo Acero, Designing with purpose — crafting products that move people and businesses forward.