About

Product-focused developer with a strong UI/UX design background and over 15 years of experience crafting high-impact user experiences across various industries. A team player with a positive can-do attitude, passionate about turning smart ideas into seamless, high-performing digital products.

Experience

Product & Growth Engineer

conversion.eco

2025

I started conversion.eco to help ethically conscious brands maximize their online revenue through my experience in product strategy, design, and development. Clients I worked with include biomel.life, Bower Collective, and Symplicity Foods

Product & Growth Engineer

conversion.eco

2025

I started conversion.eco to help ethically conscious brands maximize their online revenue through my experience in product strategy, design, and development. Clients I worked with include biomel.life, Bower Collective, and Symplicity Foods

Product & Growth Engineer

conversion.eco

2025

I started conversion.eco to help ethically conscious brands maximize their online revenue through my experience in product strategy, design, and development. Clients I worked with include biomel.life, Bower Collective, and Symplicity Foods

Senior Product Engineer & UX/UI Lead (full time)

allplants

2022 – 2025

Led a full re-design and development of the main shop funnel, resulting in a 20% increase in conversion and a 30% uplift in user engagement through usability testing and data-driven improvements.

Implemented & scaled a rigorous CRO testing plan, driving a 33% increase in ATC% and CVR growth from 1.17% to 1.70% in six months.

Designed and implemented various large solutions for the shop flow such as categorising all skus and Mix and Matching products which saw an uplift in AOV by 5%

Implemented a redesign and build of a new checkout page, improving checkout CVR by 20%, unlocking modern payment methods, ensuring compliance with PSD

Led the transition to a monorepo and new design system using chakra-ui and nx.dev

Senior Product Engineer & UX/UI Lead (full time)

allplants

2022 – 2025

Led a full re-design and development of the main shop funnel, resulting in a 20% increase in conversion and a 30% uplift in user engagement through usability testing and data-driven improvements.

Implemented & scaled a rigorous CRO testing plan, driving a 33% increase in ATC% and CVR growth from 1.17% to 1.70% in six months.

Designed and implemented various large solutions for the shop flow such as categorising all skus and Mix and Matching products which saw an uplift in AOV by 5%

Implemented a redesign and build of a new checkout page, improving checkout CVR by 20%, unlocking modern payment methods, ensuring compliance with PSD

Led the transition to a monorepo and new design system using chakra-ui and nx.dev

Senior Product Engineer & UX/UI Lead (full time)

allplants

2022 – 2025

Led a full re-design and development of the main shop funnel, resulting in a 20% increase in conversion and a 30% uplift in user engagement through usability testing and data-driven improvements.

Implemented & scaled a rigorous CRO testing plan, driving a 33% increase in ATC% and CVR growth from 1.17% to 1.70% in six months.

Designed and implemented various large solutions for the shop flow such as categorising all skus and Mix and Matching products which saw an uplift in AOV by 5%

Implemented a redesign and build of a new checkout page, improving checkout CVR by 20%, unlocking modern payment methods, ensuring compliance with PSD

Led the transition to a monorepo and new design system using chakra-ui and nx.dev

Software Engineer (contract)

16 companies

2015 - 2021

I spent 10+ years contracting, delivering high-performance applications across e-commerce, fintech, and SaaS. Led key projects at Boohoo, MarketAxess, and ClearBank, building scalable component libraries, optimising performance, and implementing headless architectures.

Specialised in Nextjs, Gatsby, and modern UI frameworks, with a strong focus on testing, design systems, and performanceMentoring developers, improving UX, and driving conversions through performance optimisations.

Software Engineer (contract)

16 companies

2015 - 2021

I spent 10+ years contracting, delivering high-performance applications across e-commerce, fintech, and SaaS. Led key projects at Boohoo, MarketAxess, and ClearBank, building scalable component libraries, optimising performance, and implementing headless architectures.

Specialised in Nextjs, Gatsby, and modern UI frameworks, with a strong focus on testing, design systems, and performanceMentoring developers, improving UX, and driving conversions through performance optimisations.

Software Engineer (contract)

16 companies

2015 - 2021

I spent 10+ years contracting, delivering high-performance applications across e-commerce, fintech, and SaaS. Led key projects at Boohoo, MarketAxess, and ClearBank, building scalable component libraries, optimising performance, and implementing headless architectures.

Specialised in Nextjs, Gatsby, and modern UI frameworks, with a strong focus on testing, design systems, and performanceMentoring developers, improving UX, and driving conversions through performance optimisations.

Clients

allplants, Boohoo

2021

MarketAxess

2020

Clear Bank, Floom

2019

Interactive Investor, Laterooms

2018

AO, Fragrance Shop, Twine

2017

Ampersand, Mission Mars, Formisimo, Havas

2016

Telcom, Fatsoma, Envirofone

2015

Education

Computing Science

Staffordshire University

2011

General Computer Science with a focus on web developent, design and UI / UX

Computing Science

Staffordshire University

2011

General Computer Science with a focus on web developent, design and UI / UX

Skills

Programming

JavaScript

TypeScript

React

Node.js

Next.js

Gatsby

GraphQL

Storybook

nx.dev

rxjs

redux-observables

Tools

Vercel

React Query

Rudderstack

VWO

Debugbear

Stripe

Shopify

Motion UI

Figma

Prismic

Tech Leadership

Leading cross-functional workshops

Project Management

Strategic Thinking

Tech Skills

Design Systems

UI / UX

Usability Testing

A/B Testing

Atomic Design

Get in touch

jez@jezfx.com

jez@jezfx.com

jez@jezfx.com

07825778919

07825778919

07825778919