NestEgg 2024-present
Making AI decisions easier to trust
I designed an AI assistant concept that shows loan officers its reasoning and proposed changes before they confirm a decision.
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RosinaI’m the human judgment your AI product needs
Rosina Pissaco
16 years across fintech, SaaS, and enterprise platforms, from onboarding conversion to AI products people trust.
I design end to end, from research and product strategy to interaction design, prototyping, and delivery.
The gap
AI can build a product. People still need to know how to use it.
AI tools let founders and CTOs launch quickly, often without a product designer. But a working product can still confuse people, lose them during onboarding or fall short in a demo. I help teams understand where the experience breaks down and what to improve.
How I help
A product UX audit built on research.
Understand the problem
Review the journey, available research and product data to separate evidence from assumptions.
Decide what matters
Identify the issues that need attention and agree what to tackle first.
Design the next step
Develop the agreed changes into flows, screens and prototypes, with validation scoped to the project.
Selected work
Global App Testing 2022-2023
Test management and automation
I redesigned test management around everyday coordination tasks, keeping Test Managers in control of automation.
8 hours saved per Test Manager each week
Spoked 2021-2022
AI cycling coach
I designed a training-plan builder that supported beginners while retaining the controls experienced cyclists needed.
+22% new-user retention after launch
LottoSocial 2020-2021
Group lottery play
I redesigned group lottery play to make progress, winnings and fees easier to understand.
+30% retention
Songclip 2017-2019
Music discovery and sharing
I redesigned how people find, preview and share music clips alongside images and video.
21% less time to find and share in usability testing