Jon Heslop
Senior Frontend Developer at Crezco
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJon Heslop is a Senior Frontend Developer based in London with 11 years of experience crafting polished, user-focused web experiences for brands and government services. He combines a designer's eye for typography and detail with strong engineering discipline, having led ecommerce replatforms, editorial migrations, and iterative product work at companies like Rapha, Pusher, and the Government Digital Service. Comfortable in high-pressure, unpredictable environments, he excels at translating stakeholder vision into pragmatic technical direction and roadmaps. Jon is equally at home building prototypes and shipping production-ready interfaces, and he mentors peers to raise frontend standards across teams. Outside of work he brings a creative, hands-on sensibility—he rides bikes and has a background in web design and content strategy that informs his UX-first approach. Trained in physics at UCL, he pairs analytical problem solving with a craft-focused aesthetic.
11 years of coding experience
5 years of employment as a software developer
University College London
English
Stackoverflow
256reputation
9kreached
1answer
1question
Github Skills (149)
origami10
firefox-addon10
nunjucks10
google-pay10
deno10
javascript10
payment10
rust10
browser-extension10
typescript10
karma-mocha10
pusher10
gaap10
nodejs10
paystack10
Programming languages (18)
Github contributions (5)
jonheslop/cass-works
Mar 2021 - Jan 2024
Contributions:5 PRs, 21 pushes, 5 branches in 2 years 11 months
jonheslop/jfh-2021
Mar 2021 - Apr 2025
Contributions:51 PRs, 231 pushes, 54 branches in 4 years 2 months
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