Hey!
I'm Jai
Senior product designer, based in Germany. I work on products that are genuinely hard to get right: enterprise platforms built from zero, checkout architecture at scale, and the subscription flows where users decide whether to stay.
Six projects. I defined the problem, set the direction, and owned the outcome.
B2B eSIM Platform
Before a single wireframe, I ran stakeholder workshops with sales, finance, and legal to define the object model. Then I designed the entire platform: roles, permissions, billing, reporting. The key call was configuration over white-label, the decision that let the platform absorb 3,000+ companies without a single code fork.
Checkout Unification
I ran the audit myself to prove unification was worth it. Mapped 23 divergence points across three surfaces and set the direction: one system, predictable behavior, no silent edge-case failures.
MedEspañol
Built from zero: a health navigation platform for Spanish speakers in Germany. AI-assisted triage, Arztbrief interpretation, doctor video consultations. Designed, shipped, and running in production at medespanol.org.
Plans Lifecycle
The growth team wanted to hide the cancel button. I showed them Hotjar footage of users rage-tapping through four screens to find it. That conversation shifted from churn prevention to earned retention. Cancellation tickets dropped 61%.
Photo Studio
Before opening Figma, I stress-tested 40+ edge cases with Claude: background removal bleeding into the product, upscaling artifacts, multi-violation flows. That session defined the trust model: preview-first, no AI action without the seller's explicit approval. The team shipped it after I left.
Seller Photo Moderation
I pushed back on the brief. The real problem wasn’t the copy. It was that the system knew things the seller couldn’t see. Redesigned from information architecture up, across 100M+ users.
Jairo Alvarez designs where
marketplaces,systems,constraints,platforms,trust,
product, and data meet.
My work tends to land in complex territory with real conversion stakes. That covers enterprise platforms for thousands of companies, checkout systems across web and native app, seller tools at marketplace scale, and the acquisition flows where users decide whether to commit. The common thread is that the margin for confusion or friction is always low.
How I work: I map the funnel before I sketch. Whether the product has a million users or a handful of enterprise accounts, I start by understanding where people drop, what they misread, and what the system makes harder than it should. Engineering comes in early, before designs are committed, because the solutions that hold up in production usually require a conversation about build costs that can’t happen after the fact.
My background is graphic design. I moved into digital products and stayed because the problems are harder. I work in English and Spanish, across teams in Latin America and Europe. I’ve shipped work that reached millions of users, and I’ve built product end-to-end in production when the team didn’t exist yet.
I’m curious about where technology is actually going. I use AI as a tool in the work: heuristic evaluation before committing to a direction, accessibility auditing before every handoff, edge case simulation before opening Figma. Based in Hannover. Available immediately.