Maya Chen

Senior Frontend Engineer

Summary

Frontend engineer with 7 years building high-traffic commerce web apps in React and TypeScript. Led a 5-person team that rebuilt checkout for 3M shoppers (+14% conversion) and owns a design system used by 40+ engineers. Cares about speed, accessibility and clean APIs.

Experience

Senior Frontend EngineerJun 2021 – Present

Northline CommerceToronto

Led the rebuild of checkout in React and TypeScript for 3M monthly shoppers, lifting conversion 14% and cutting mobile drop-off by a third.
Cut Largest Contentful Paint from 3.8s to 1.6s with route-level code splitting, image CDN rules and streaming server rendering.
Built a 70-component design system adopted by 6 squads, halving UI bug reports within two quarters.
Mentored 4 engineers through promotion cases; 3 were promoted within 18 months.
Introduced feature flags and canary releases, allowing 40 deploys a week with a 0.5% rollback rate.

Frontend EngineerMar 2018 – May 2021

Brightside PaymentsVancouver

Shipped the merchant dashboard used by 25,000 stores, with real-time sales charts streamed over WebSockets.
Introduced Playwright end-to-end tests covering 120 critical flows; release rollbacks fell from 6 to 1 per quarter.
Migrated 90,000 lines of JavaScript to TypeScript over 5 months without pausing feature work.
Upgraded every payment form to WCAG 2.1 AA, fixing 60 accessibility issues flagged in an external audit.
Partnered with designers to prototype 3 onboarding flows, raising merchant activation 11%.

Junior Web DeveloperMay 2016 – Feb 2018

Maple Digital AgencyToronto

Built responsive storefronts for 15 retail clients, each launched on schedule and within budget.
Created a reusable theme starter that cut new-site setup time from 2 weeks to 3 days.
Optimised images and caching for a fashion client, reducing page weight 55% before Black Friday.
Trained 3 junior developers on Git, code review and accessible HTML.

Education

University of Waterloo2012 – 2016

B.Math., Computer Science

Written for roles atShopify

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Why this résumé works

Opens with scale (3M shoppers) and a business result (+14% conversion) — what a commerce team cares about.
Performance work is shown as before/after numbers, not adjectives.
Leadership is proven by adoption and promotions, not claimed.

Bullet breakdown

Senior Frontend Engineer at Northline Commerce — what each line does right.

Led the rebuild of checkout in React and TypeScript for 3M monthly shoppers, lifting conversion 14% and cutting mobile drop-off by a third.
Strong verb Number 1–2 lines
Cut Largest Contentful Paint from 3.8s to 1.6s with route-level code splitting, image CDN rules and streaming server rendering.
Strong verb Number 1–2 lines
Built a 70-component design system adopted by 6 squads, halving UI bug reports within two quarters.
Strong verb Number 1–2 lines
Mentored 4 engineers through promotion cases; 3 were promoted within 18 months.
Strong verb Number 1–2 lines
Introduced feature flags and canary releases, allowing 40 deploys a week with a 0.5% rollback rate.
Strong verb Number 1–2 lines

Written by GotOffered as an example of a strong Senior Frontend Engineer résumé for roles at companies like Shopify. The person and past employers are fictional. Not affiliated with or endorsed by Shopify; logos are trademarks of their owners.