Work

The Crezco logo

Crezco

Lead front end developer

June 2021 - Present

Crezco exists to make money easy, we combine Open Banking technologies with easy to use APIs and dashboards. I lead front end development and make sure everything performs well, looks good and is easy to use.
The Albion logo

Albion Cycling

Project lead developer

January 2022 - April 2022

Albion is an outdoor clothing brand, with a focus on adventure and sustainability. I led the rebuild of the site, we migrated from a custom Wordpress frontend to a React powered headless store with Hydrogen and Oxygen, Shopify’s latest and most powerful storefront.
The Pusher P logo

Pusher

Senior front end developer

November 2019 - June 2021

Pusher makes easy to use APIs that make scalable realtime communication features easy. My role was mainly focused on making sure the dashboard our customers use was easy to use, performant and looked good.

Blog posts

The GOV.UK crown logo

Government Digital Service

Senior front end developer on GOV.UK Pay

June 2017 - November 2019

The UK Government Digital Service is part of the Cabinet Office. GDS is part of the digital transformation of government. I worked within Government as a Platform as the front end developer on GOV.UK Pay, which makes it quicker and easier for government services to process payments online.

Blog posts

The Digitas LBi Unicorn logo

DigitasLBi

Senior interface developer on Project Helios

2016 - May 2017

Project Helios is the digital mothership of the Renault–Nissan alliance, the engine is currently deployed to 167 markets in 50 languages. I worked in Release Prep, where we oversaw the deployment of new features from any of the fourteen teams that contributed and also built internal tools. The Helios engine is rooted in Adobe Experience Manager CMS linked up with over 1000 different APIs with a BackboneJS front-end.
The Rapha logotype

Rapha

Front end developer and designer

2013 - 2016

I joined Rapha as the first in-house developer and worked with a small team on a complete replatform moving the website, fulfilment and accounts on to Hybris. I was responsible for designing and building the front end of the website. I also worked with marketing on product releases and campaigns to produce exciting features using Wordpress.
The Do Lectures logoThe Hiut Denim owl logo

Freelance

Web developer and designer

2010 - 2013

For a few years I freelanced with several companies and lived in varied locations including Wales, Bristol, Berlin and San Francisco. I mainly worked with my friends, The Hieatts, on various projects for The Do Lectures, Do Book Co. and Hiut Denim. The latter two were new companies and I was involved in all aspects of the business, from building the website to helping to manage inventory and invoices. I worked with other small business too building bespoke themes for mainly Wordpress and Shopify.
The howies logotype

howies

Head of Web

2008 - 2010

I landed a job with howies right out of university after a summer interning there the year before. I brought a knowledge of the internet and social media to the company and helped grow the online presence of the brand. Being a small company I also helped out with a lot of things, from helping produce photoshoots to designing and writing content for the quarterly catalogues.
Jon Heslop in his house
Self-portrait, 09/02/25 — Fujifilm X-Pro3, Leica Summilux-M 50 ƒ/1.4, ASPH

About me

Jon Heslop is a web developer based in Walthamstow, he lives with his wife Rebecca and their dog, Maude. He enjoys cycling, cooking and hanging out with friends.

Enough of the third person... I was born in London, grew up on the Wirral before coming of age in the Midlands (somehow that’s the accent that mostly stuck). I went to university in London and then spent a while in West Wales.

I’ve been building websites since I was a teenager and I have been very lucky with the places and people I’ve worked with over the years.

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