Joshua Lenz
Product Design Lead
Ireland
joshlenzlipitch@gmail.com
A design lead who builds the system behind the design, not just the screens. Six years at the world's leading experimentation agency gave me an instinct most designers never build: design decisions are hypotheses, settled by user behaviour, not opinion. I turn messy operations into simple systems a team can run, with AI where it earns its place and a human on the calls that matter.
Craft-jewellery retailer
Collapsed three disconnected systems into one automated spine: Shopify, Katana, Make.com, Airtable, Chrome extensions. 200 manufacturing orders a month flow hands-free; AI flags for humans rather than decides. Self-repairing, and run by a non-technical team
Language-learning iOS app, designed and built solo with Claude Code and Swift. Product, UX, brand and code, shipped to the App Store in April 2026.
Lead UI/UX Designer (2018–19)
UX Designer (2017–18)
The world’s leading experimentation agency
Led a four-person team delivering ~140 experiments a year across 19+ brands, and rebuilt the agency’s design process into a repeatable system the team worked to. I designed 400+ myself, for Meta, Canon, Tommy Hilfiger, Toyota, Just Eat, KFC, Vodafone and The Times, all validated on live traffic rather than opinion.
London creative agency
Led design end to end on multiple iOS and Android apps, and presented the work to clients.
UX design at Mountview Consulting; graphic design & eCommerce at Enibas.
De Montfort University
BA (Hons) Business Management, 2015
- Craft: UI, UX, IA, design systems, experimentation, Figma
- Build: Claude Code, Make.com, Airtable
- Lead: team leadership, design strategy, stakeholder management