Dina Karakosta — Senior Digital Product Designer, Utrecht. 7+ years across B2B SaaS and e-commerce, focused on design systems, interaction, accessibility, and AI-assisted workflows.
Leading product and design on the first full UI modernization of Mambu's core banking engine, migrating a legacy GWT front end to React and MUI under a strict no-workflow-change, no-backend-change, 100%-parity mandate.
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Built and maintained an AI-readable design system in GitLab, plus two Claude Code skills that turn codebase context into Jira stories and automate accessibility and usability audits.
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Designed a reusable table pattern that gives compliance officers clear, contextual feedforward on what they can and can't do before they act, closing 5 client tickets at Fenergo.
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How extensive UX research uncovered why applicants were dropping out of a document upload and signing flow, leading to an end-to-end redesign that generated approximately €600K in additional monthly revenue from booked loans while reducing the manual work behind it.
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How driving user focus toward Santander's personal loans, in place of a lending product regulators were phasing out, led to a €7.5M annual boost in requested loan amounts.
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Owning the end-to-end redesign of Mambu's core banking engine UI for a platform used by 200+ customers generating 1M+ daily interactions.
Led the end-to-end integration of the Sentinels Transaction Monitoring product into Fenergo's KYC/CLM platform, from discovery through delivery.
Improved the UX of the Sentinels platform, used by Anti-Financial Crime and Compliance teams to detect, monitor and report financial crime.
Improved the UX of the company's website and digital environments across the Netherlands and Belgium.
Started in research and strategy: as a UX Strategist at MediaMonks, and earlier as a research assistant at Utrecht University. It's the range that shapes how I approach new problems today.
Dina was always a Product designer, not just focusing on UI/UX design. Going much further to deeply understand the core user need and solution, with a consideration for constraints.
With Dina, this collaboration is always smooth and enjoyable. She is open to new ideas and consistently focused on improving design patterns and systems, ensuring the entire team benefits from her work.
One of the most thoughtful, strategic, and collaborative designers I've worked with. Any team would be incredibly lucky to have her.
She is all round product designer who will always put the work into it and explores multiple solutions. It has always been a pleasure to work with Dina — she is very respectful and passionate.
I have seen very few designers in my lifetime that are as thorough in delivering work as Dina — although she's a very mature designer, she's still eager to learn new things.
