Some things I have worked on

No big deal!

Dragonpass

Password required

Taking a hugely underperforming login flow (32.6%) to a projected 65–82% success rate

deep discovery

digital brand

product design

  • Before: 32.6% login success rate

  • After: Projected range of approx. 65–80% login success (+32–50%)

  • Biometric opt-in: From 14% to 100% (user intent; actual may vary)

  • Customer support load: Major anticipated reduction

Taking a hugely underperforming login flow (32.6%) to a projected 65–82% success rate

deep discovery

digital brand

product design

  • Before: 32.6% login success rate

  • After: Projected range of approx. 65–80% login success (+32–50%)

  • Biometric opt-in: From 14% to 100% (user intent; actual may vary)

  • Customer support load: Major anticipated reduction

More..ish

Ready for review

Stamped out: a founder’s tale of the little loyalty app that could have been

end-to-end

branding

product strategy

  • Research, brand and MVP for a loyalty platform for small businesses

  • 100+ vendors and 5,000+ users at peak

  • Scalable design system and voucher logic

  • £350k angel investment interest

Stamped out: a founder’s tale of the little loyalty app that could have been

end-to-end

branding

product strategy

  • Research, brand and MVP for a loyalty platform for small businesses

  • 100+ vendors and 5,000+ users at peak

  • Scalable design system and voucher logic

  • £350k angel investment interest

Hermes to Evri

Ready for review

From Hermes to Evri: shaking off a less than reputation with a UI and design system reinvention

design system creation

ui design

accessibility

  • Cross-platform UI refresh (web, app, POS)

  • Design system from scratch

  • New ways of working adopted org-wide

  • 3M+ 5-star Trustpilot reviews post-rebrand

From Hermes to Evri: shaking off a less than reputation with a UI and design system reinvention

design system creation

ui design

accessibility

  • Cross-platform UI refresh (web, app, POS)

  • Design system from scratch

  • New ways of working adopted org-wide

  • 3M+ 5-star Trustpilot reviews post-rebrand

The Vault

Ready for review

Stuff I found on my hard drive

ui design

end-to-end

A disorganised smattering of work, stretching back to the days of doing UI in Photoshop. Bits and pieces I still like, from Vodafone, EA Games and more.

Stuff I found on my hard drive

ui design

end-to-end

A disorganised smattering of work, stretching back to the days of doing UI in Photoshop. Bits and pieces I still like, from Vodafone, EA Games and more.

Trusted by humans…

Trusted by humans…

Shipped work for all these guys!

Shipped work for all these guys!

Shipped work for all these guys!

Miley Cyrus

Chuck Ragan

Cheryl Cole

La Roux

Calvin Harris

Johnny Flynn

Pixie Lott

Hungry & Woods

Kate Nash

Noah & The Whale

Kathryn Jenkins

Jay Z

Janet Jackson

Nonpoint

Paulo Nutini

Animal Kingdom

Alphabeat

The Veronicas

Viva MTV

Arctic Monkeys

Chapel Club

Chase & Status

Madonna

Sophie Ellis-Bextor

Austin Wilde

The Saturdays

Two Door Cinema Club

Take That

Snow Patrol

The Horrible Crowes

Warner Music Group

EMI

Sony Music

Universal Music Group

Co-Operative Music

Vertigo Records

Nonesuch Records

SideOneDummy

Ed Banger Records

Razor & Tie

Transgressive Records

Red Eye Transit

The Revival Tour

BringTheNoise

Joan Jett

Shadowrun Online

EA Games

The Sims 3

EA Sports Active

FIFA

Portal 2

Call of Duty

Mass Effect

Fight Night

Dead Space

Warpball

Crysis

ghd

Original Source

Charles Worthington

Imperial Leather

Eastpak

Volcom

Cinespia

Silicon Valley Rocks

Moxy

Seabrooke

Vodafone UK

Vodafone Group

Vodafone Enterprise

Nectar Card

The British Heart Foundation

Qdooz

Thames Water

Lloyd's Register

TalkTalk

Co-Operative Bank

Natwest

BAE Systems AI

British Maritime

MI5

Smile Machine

Sony Playstation

Action Fraud

Conjure

Grundfos

Surgease

Evri

Chetwood Bank

Laithwaites

Nissan

Playdu

Surgease

Dragonpass

Enabled by machines…

Enabled by machines…

Cheers for reading!

© 2025 Cassie Groos

Cheers for reading!

© 2025 Cassie Groos

Cheers for reading!

© 2025 Cassie Groos

Some stuff I have
worked on