Product design leadership
One designer carrying research, strategy, design systems and AI into your product, from the first interview to the line of code that ships it.
Selected clients and teams, from early-stage startups to Fortune Global 500.
10 years turning ideas into high-value realities
- Millions
- in USD moved monthly
- 8M
- users managed
- 4
- pioneering products
- 27
- countries served
- 75
- projects delivered
- 25
- people managed
Featured cases
Selected work where research, design and close collaboration with developers drove real business outcomes.
90-second claim intake
Motor insurance claims reported in 90 seconds instead of a phone call of up to 7 minutes. A policyholder app and an adjuster dashboard, designed, built and shipped to a public URL in 3 days, with each claim reaching the adjuster in under 2 seconds.
Sebrae's ecosystem
Brazil's largest small-business support institution, rebuilt as one ecosystem: an app repositioned as a personal business assistant for 743K active users, a unified portal with 2.5M service interactions a month, and a design system that cut 130 color values to 30.
TMB's ecosystem
Brand, design system and a five-app consumer-financing ecosystem that lets digital-product creators sell to students in installments. Revenue grew 104% in 2024, 400K students were activated, and creators got Brazil's first mobile banking app built for them.
Greiner Bio-One's eTrack
A pioneering lab-traceability app redesigned in 2 months, which became Greiner Bio-One's first SaaS product. Labs reach 90 to 95% traceability with 80 to 90% fewer pre-analytical errors, in 4 language markets.
Diletta Pay
One white-label banking platform behind 3 custom banks and 5 brands, from the admin system that helped N26 manage 4M users in Brazil to BRL 2 to 16M in daily transactions at Inovanti (now Humu).
Report by Suzano
An acquisition landing page for Report, one of Brazil's best-known paper lines, with separate routes for buyers and resellers and sales attributed to each of its 9 products.
What changes when one person carries the whole arc
Most teams stitch together a researcher, a brand consultant, a product designer and a design systems lead. I do all four, so context isn't lost between briefs and developers get one coherent design intent instead of four.
Thinks like an owner
I care about your KPIs, your runway and your board deck, not just the pixels.
Measured by outcomes, not outputs
I track revenue, conversion and adoption, not deliverables shipped.
From minimally viable to maximally valuable
I help you launch fast without design debt you'll regret later.
Designs in your developers' stack
Tokens in Tailwind, prototypes in React, AI in the workflow, so what ships matches what was designed.
Works across time zones
10 years collaborating from São Paulo with teams on US and EU hours.
What partners say
"It's incredible how [Stephan] managed to use [the landing page] to promote Report even beyond what we had imagined."
"[Stephan's] perspective and Design System expertise were instrumental in all the changes and evolutions we've made."
"I highly recommend Stephan to any organization looking for a designer capable of creating meaningful impact in digital products."
"Stephan is brilliant… he has the ability to humanize the product."
"He not only delivers a Design System that meets our needs but exceeds all expectations."
"[Stephan] solved complex technical challenges with sound judgment… communicates clearly with technical and non-technical colleagues, takes full ownership of his work."
Design leadership driven by purpose, not hype
If your team needs senior design leadership without the overhead of a full-time hire, let's talk about your challenge.