Darrel-day Guerrero
Senior Web Developer at Shopify
Canada
Summary
🤩
Rockstar🎓
Top SchoolDarrel-day Guerrero is a senior web developer with 12 years of experience, currently shaping Shopify’s core Checkout platform at an L6 level. He progressed through multiple hands-on roles at Shopify since 2018, combining deep front-end craftsmanship with production Checkout systems and online experience work. Earlier roles at Genetec and VuWall show a track record of building integrated web applications, hardware API integrations, and test-driven front-end architectures for complex realtime and security-focused products. Based in Canada, he blends engineering rigor—improving test coverage and performance—with practical product delivery at scale. Colleagues can expect a developer who moves fluidly between UI and backend concerns and who has repeatedly advanced within a high-velocity, mission-critical commerce codebase.
12 years of coding experience
5 years of employment as a software developer
Bachelor of Engineering (BEng), Bachelor of Engineering (BEng) at Concordia UniversityDiplôme d'études secondaire (DES), SÉBIQ, IB, Diplôme d'études secondaire (DES), SÉBIQ, IB at International BaccalaureateDiplôme d'études collégiales (DEC) - Associate's Degree, Diplôme d'études collégiales (DEC) - Associate's Degree at Dawson College
Github Skills (68)
testing10
validating10
component-library10
jsx10
firefox10
api10
design-tokens10
shopify10
formatting10
typescript10
vscode-extension10
dom10
preact10
credit10
virtual-dom10
Programming languages (4)
Github contributions (5)
VuWall/VuWall-Motion
Oct 2015 - Oct 2015
Contributions:23 commits, 15 pushes, 3 branches in 2 days
DanH91/tdd-angular2
Sep 2015 - Sep 2015
Contributions:19 commits, 16 pushes in 2 days
test-driventestingangular2test-driven-developmentangular
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