AI-native product designer · London

I’m Hays, a lead product designer building clarity from zero to scale

I partner with founders and early teams to define product direction, build scalable systems, and ship high-impact experiences across AI, fintech, SaaS, and data products.

See selected work Currently building Nurii and open to new opportunities
Hayley Smeulders
10+
Years designing
3
Design systems shipped
0→1
Product definition
AI‑native
Designer
About me

A lead IC designer who turns ambiguity into shippable products.

I’ve spent 10+ years prototyping and testing real digital products for SaaS, fintech, and mission-led teams. I specialise in information architecture, evolving design systems, and complex UX flows - partnering closely with founders and product leads to turn ambiguous problems into user-tested solutions.

I stay hands-on where execution matters, and I lead when teams need direction - most recently shifting design from feature execution to ecosystem leadership at Lantern.

Product & UX
Discovery IA & navigation End-to-end journeys Accessibility
Systems & craft
Design systems Prototyping Interaction design AI-assisted workflows
Selected work

Strategy, systems and creative energy - shipped.

01 Lantern

Scaling experience across an AI product ecosystem

Leading product experience across multiple products while building “Lux,” a unifying design system for accessibility and interaction patterns.

Design leadership Multi-product strategy Design systems
02 Qwist

Unifying a European fintech platform

Built “Vault,” aligning B2B and B2C bank-switching products across markets - improving clarity, conversion and consistency at scale.

Lead product designer Design system Conversion
03 Tubr

0 → 1 data product definition

Turning raw hospitality data into a structured analytics product. Defined journeys, IA, dashboards and the brand alongside the founder.

Lead product designer Founder collaboration 0 → 1
04 Nurii

Founding a brain-longevity product, end to end

Concept to creation as founder and designer - brand, the eight-pillar model, design system, 60+ rituals and the companion app. Idea to build.

Founder Product & design Design system
Experience

A decade building - agency, fintech, AI.

2024-pres.
Founder & product designer NURII
London · brain longevity

Founded Nurii - a brain longevity product. Concept to creation: brand, the eight-pillar model, design system, 60+ rituals of content and the companion app. Idea to build.

2025-26
Product design lead LANTERN.AI
Hybrid London / Jersey · data SaaS

Lead end-to-end experience across 3+ AI products; defined the Lux design system and shifted the team from feature execution to ecosystem leadership.

2024-25
Lead product designer QWIST
Remote / Berlin · fintech SaaS

Built the Vault design system for B2B/B2C bank-switching products and led the UX/UI redesign for the Spanish market, improving conversion.

2024
Lead product designer · 0→1 TUBR
Remote · data SaaS

Partnered with the founder and data scientist to turn raw hospitality data into a structured analytics product - journeys, IA, dashboards and brand.

2014-22
Product designer · contracts VISUAL NOMAD
London / US / remote

Else London (T. Rowe Price, Alzheimer’s Society), Splendid, Huge, Foolproof and agency roles at VML/WPP.

Education
The University of Manchester
Design Management (2:1) · 2010–2014
The University of Sydney
Exchange · Marketing & Creative Advertising
Ravensbourne College
Foundation Diploma, Art & Design (Merit) · 2009–2010
Earlier roles & contracts

Else London - T. Rowe Price, Alzheimer’s Society dementia app. Visual Nomad Ltd (2017–2022) - Splendid, Huge, Foolproof, Appnovation. Mirum/VML/WPP, Brilliant Basics/Wongdoody.

What I bring to early-stage teams

Vision and technical capability, made shippable.

01

0 → 1 product definition

Turning vision and technical capability into structured user journeys, information architecture, and shippable interfaces.

02

Systems from day one

Building scalable design foundations early (Vault, Lux) to prevent fragmentation later.

03

Founder-level collaboration

Working directly with founders, product, and technical leads to align business goals with usable product strategy.

04

Hands-on leadership

Leading teams when needed - and staying close to the work when execution matters most.

Get in touch

Creative impact
starts here.

Tell me a little about what you're building and where you are - I read every message and reply personally.

or find me on LinkedIn