Designer for bold, ambitious products and teams.

Available for contract & full-time roles

SA Government

Citizen-facing government services under COVID

Loadout

Web3 protocol for composable in-game loadouts

GuanPay

Stake-to-own crypto payments protocol on Base

Occhio Scan

AI UX audit tool for non-designers

Occhio Inspector

Chrome extension for heuristic UX audits

IlluviDEX

A DEX for in-game assets with real-world value

Guanciale

Autonomous crypto trading platform with AI advisor

PLAYA3ULL

Brand and marketing site for a gaming blockchain

Illuvium Beyond

Collectible card meta-layer for the Illuvium universe

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21 projects across gaming, fintech, consumer, government

I'm a product designer who helps ambitious teams ship bold products without compromising quality.

8+ years across game-like products, fintech, consumer apps, and government digital services. I do my best work embedded in product teams, turning fuzzy ideas into shippable systems.

How I work:

Shape product strategy without drowning the team in docs.
Build high-fidelity prototypes to settle debates quickly.
Work shoulder-to-shoulder with engineering so specs stay honest.
Establish design systems that outlive the first sprint.

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Capabilities

Product DesignDesign SystemsWeb DesignMobileService DesignUser ResearchGames ResearchBrand & IdentityGames UX/UIPrototypingProduct ManagementFrontend

Approach

Understand before you design.Workshops, interviews, and LUMA facilitation to frame the real problem and build empathy before any screen gets made. The right question beats the right answer.

Shape what gets built.I scope initiatives, write user stories, and align stakeholders around a clear direction. Design decisions land better when everyone agrees on what's being built and why.

Make things to think.A working prototype ends debates that a hundred frames can't. I build to learn, not to present.

Sit next to engineering.I write enough frontend to keep specs honest and hand off what's actually buildable.

Leave more than screens.Tokens, components, and patterns the team can keep building on long after handoff.

Share as I go.Loom walkthroughs, Figma comments, preview deploys. No surprise reveals at the end of the sprint.

Experience

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In their words

Kosta is a fast, efficient, thorough operator and a pleasure to work with. Over 12 months I've found him to be an excellent designer, continuously going above and beyond expectations. Dedicated, passionate, deeply knowledgeable, creative, and often provides the kind of constructive feedback that lifts the whole product suite.

Kosta brings industry rigour into the classroom. His students leave with a sharper eye and a clearer sense of what it actually takes to ship design work that matters.

As our Lead Designer, Kosta was the quiet engine behind a lot of what made PLAYA3ULL feel like a real product. Strategic when we needed strategy, fast when we needed pixels, and always raising the bar on everyone else.

Kosta takes fuzzy, ambitious briefs and turns them into something we can actually ship. He cares about the craft, moves quickly, and isn't precious about his work. A rare combination in a designer.

One of the strongest product designers I've had on my team. Kosta pairs sharp visual judgement with real product thinking, and he's generous with both. The work around him got better because of it.