GY

George Yiakoumi

Senior Product Designer & Design Engineer

Senior Product Designer and Design Engineer based in London. 11 years shipping digital products across financial services, AI, and enterprise consultancy, most recently building behavioural research infrastructure for lumenx. I design in Figma and ship in React, Next.js, and Tailwind, contributing directly to production code to close the design-to-dev gap.

Skills / Tools

Adobe After Effects CCAdobe After Effects CCAdobe Illustrator CCAdobe Illustrator CCAdobe InDesign CCAdobe InDesign CCAdobe Photoshop CCAdobe Photoshop CCAdobe Premiere Pro CCAdobe Premiere Pro CCAvid Pro ToolsAvid Pro ToolsBlenderBlenderExcalidrawExcalidrawFigmaFigmaWebflowWebflowCloudflareCloudflareCloudinaryCloudinaryCSS3CSS3Framer MotionFramer MotionGitHubGitHubGSAPGSAPHTML5HTML5JavascriptJavascriptLottieFilesLottieFilesNetlifyNetlifyNextjsNextjsRadix UIRadix UIReactReactRenderRenderSASSSASSShadcnShadcnStorybookStorybookSupabaseSupabaseTailwind CSSTailwind CSSVisual Studio CodeVisual Studio CodeClaude AIClaude AILinearLinearMiroMiroNotionNotion

Career History

lumenx

lumenx

London, UK • Remote

AI-led behavioural research platform for enterprise teams (notably pharma). Conducts qualitative interviews and produces structured insight reports grounded in behavioural science frameworks.

Senior Product Designer & Design Engineer (Contract)

Jun 2025 - Present
  • Sole designer on a small cross-functional team, owning end-to-end product design from user flows through to shipped UI.
  • Designed the project setup flow and conversation guide that drove the AI interviewer's behaviour, in close collaboration with the principal scientist, working against AI data-availability constraints.
  • Designed and shipped a behavioural insights reporting interface structured around COM-B, MINDSPACE, and EAST frameworks, used as the centrepiece of a successful pilot demo.
  • Migrated the design system from a custom foundation to Tailwind, Radix UI, and shadcn/ui, with the codebase as source of truth and Figma as a synced hi-fi mocking aid.
  • Contributed to the production codebase (React, Next.js, Tailwind, shadcn/ui, Radix UI) via GitHub commits and PRs, working alongside the frontend developer on implementation.
  • Delivered a 5-day pre-demo refactor of AI-generated code, restoring alignment with the team's design system foundation. Demo shipped on time.
&us

&us

London, UK • Hybrid

Branding and innovation consultancy. Project-based work across pharma, tech, and retail. Clients included Novartis, HP, Johnson & Johnson, and Wickes.

Product Designer

Feb 2023 - May 2025
  • Embedded for 6 months on a design system rebuild in Figma, audited existing files across UI, palette, dataviz, and typography, then rebuilt from scratch using atomic methodology with regular client sign-offs.
  • Designed and tested a GenAI feature integration on an enterprise developer platform, with UX research, prototyping, and an IRL playtest session with the client's AI specialists.
  • Ran a fake-door market validation test on Webflow for a new consumer device concept, surfacing demand and preference data.
  • Built a CMS-backed Webflow resource hub for client leadership using Midjourney-sourced imagery, with a clean handover for in-house rebuild.
  • Delivered heuristic and competitive analysis on conversion journeys, with UX optimisation recommendations as a structured deck.
  • Produced video content across multiple projects: storyboarding, editing in After Effects and Premiere Pro, and on-set production direction.
Ocean Finance

Ocean Finance

Manchester, UK

UK consumer lender (loans, credit cards, motor finance, mortgages, insurance). Joined as an email designer and developer, moved into broader UX/UI over time.

UX / UI Designer

Jan 2018 - Jun 2022
  • Redesigned signup and onboarding journeys for regulated financial products, working through compliance and third-party constraints.
  • Ran AB tests on a growth team, including an accessibility-driven token revision that improved colour contrast against WCAG standards and lifted application conversion.
  • Maintained the cross-brand design system in Sketch and Abstract.
  • Designed display advertising for paid placements (eBay, Gumtree, and others), including HTML5 Canvas animated ads in Adobe Animate, produced iteratively against campaign performance.

Digital Designer & Email Developer

Jan 2016 - Jan 2018
  • Sole resource for HTML email design and build across the parent group's portfolio of consumer lending brands.
  • Produced animated email content for seasonal campaigns, tied to measurable conversion uplift.
  • Built and tested email templates end-to-end in code, using Litmus to maintain production deliverability standards.
NEPOMAK

NEPOMAK

London, UK • Hybrid

International non-profit connecting young Cypriot diaspora through cultural, educational, and networking initiatives. Board-level volunteer role alongside full-time employment.

Head of Digital (Volunteer, Board)

Sep 2016 - Jan 2020
  • Audited the existing site, then designed and built a new responsive WordPress platform from scratch in PHP, enabling the team to manage and update content without developer dependencies.
  • Established brand guidelines, set up CRM workflows in SendInBlue, and designed email templates to unify global communications across regional chapters.
  • Presented the new digital platform and brand system at the NEPOMAK World Conference in Cyprus to an international audience.
  • Designed and delivered a commissioned logo for a Cypriot government official as part of the organisation's wider engagement work.
Think Money Group

Think Money Group

Manchester, UK

Parent group of UK consumer finance brands. Joined as my first design role across a multi-brand marketing function.

Junior Web Designer

Sep 2014 - Jan 2016
  • Designed across the group's brand portfolio: landing pages, marketing campaigns, print, and email templates.
  • Sole resource for HTML email design and development, and for animation and motion graphics across the group's marketing output.
  • Contributed to brand-led campaigns and group-wide collateral, including event sponsorships.

Certifications

Coursera
Full-Stack Web Development with React Specialization
Coursera
Blockchain Specialization
Coursera
UI / UX Design Specialization

Languages

English

Primary

Greek

Fluent