PRODUCT DESIGN · UX
Complex problems.
Clear products.
I'm Jeronimo. For 8 years I've been turning complex problems in fintech, healthcare and enterprise software into products people actually use.
Amex Advance, before and after. Flip the switch.
Trusted with complex challenges at Johnson & Johnson, Prudential, American Express and ADP.
Selected work
04 case studies · 2017 → 2025
01 · JOHNSON & JOHNSON · HEALTHCARE · 2025
Making a global health ecosystem easier to navigate.
Research, A/B testing and reusable patterns across a large corporate web ecosystem.
02 · PRUDENTIAL · FINTECH · 2022–2023
Clearer paths through life's biggest money decisions.
+10% engagement · −6% lead loss
03 · AMERICAN EXPRESS · FINTECH DATA · 2017–2020
Turning predictive data into decisions partners could act on.
15% more efficient data analysis · Read the case study →
04 · ADP PROGRESSIVE PAYROLL · SAAS · 2021–2022
Catching payroll errors before payday does.
A live payroll register that surfaces problems while there's still time to fix them.
AMEX ADVANCE
15%
more efficient data analysis
PRUDENTIAL.COM
10%
higher page engagement
VOYA
11%
better usability scores
ENCORE FINANCIAL
8%
higher mobile conversion
How I solve problems
01
Start with evidence
Research, analytics, heatmaps and stakeholder goals come together before any pixels do, so we design for the real friction and not the loudest opinion.
02
Explore widely and cheaply
Sketches, flows and low-fidelity prototypes compare several directions in days. AI tools speed up production. The judgment stays human.
03
Validate before committing
Moderated and unmoderated tests, A/B experiments and design reviews put ideas in front of people while changes are still cheap.
04
Design for the system
Every screen has to work inside the brand, the design system, the engineering reality and the next feature.
Good UX isn't about adding more to an experience. It's about making the right things clearer, more useful and easier to act on.
About
8 years between Fortune 500 teams and startups, usually where user needs, business goals and regulation pull in different directions.
Grew up in South America. BFA Graphic Design, Pennsylvania College of Art & Design.
- 2025Johnson & Johnson
Senior Product Designer - 2024–25ENCORE Financial
Senior UX & Brand Designer - 2024Voya Financial
Senior Lead Designer - 2022–23Prudential Financial
Senior Product Designer - 2021–22ADP
Senior UX/UI Designer - 2020–21Life.io (Pacific Life)
Senior Visual Designer - 2017–20American Express
Lead UX/UI Designer