Contact

About

Joshua Lenz

Product Design Lead
London
joshlenzlipitch@gmail.com

Six years at Conversion.com, an experimentation agency, four of them running the design team. I designed 727 live A/B tests for clients like Meta, Canon and Toyota. Since then I've shipped my own iOS app and built the AI systems a jewellery business runs on, saving its team hours of admin every week.

Experience

Enibas

Jan 2025 – Present

Product & Systems Designer

Craft-jewellery retailer

Collapsed three disconnected systems into one automated spine: Shopify and Katana APIs, two Chrome extensions the team uses daily, jobs on a twice-daily schedule. Orders flow from sale to workshop hands-free, and the AI layer surfaces exceptions rather than acting on them. Run day to day by a non-technical team.

Linguease

2025 – Present · side project

Product Designer

iOS app on the App Store since April 2026, designed and built solo with Claude Code from my own Figma design system.

Conversion.com

Mar 2017 – Dec 2023 Head of Design (2019–23)
Lead UI/UX Designer (2018–19)
UX Designer (2017–18)

Head of Design

Experimentation agency

Led a four-person team delivering ~140 experiments a year across 19+ brands, introduced Figma in my first year, and rebuilt its design process into a repeatable system. I designed 727 myself, for Meta, Canon, Toyota, KFC and The Times, all validated on live traffic.

Glance Creative

Jul 2016 – Mar 2017

UX/UI Designer

London creative agency

Led design end to end on multiple iOS and Android apps, and presented the work to clients.

Earlier career

2014 – 2017

UX design at Mountview Consulting; graphic design & eCommerce at Enibas.

Education

Skillset

De Montfort University
BA (Hons) Business Management, 2015

Craft: UI design, UX, experimentation, IA, design systems, Figma
Build: Claude Code, REST APIs, Chrome extensions, Make.com, Airtable
Lead: team leadership, design strategy, stakeholder management