Looking for a job

Aaron Chai

@aaronchai

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I build high-converting, accessible Shopify storefronts and full-stack commerce tools.

United States

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What I'm looking for

I'm looking to build high-converting, accessible commerce products and full-stack tools, with ownership across UI/UX, performance, integrations, and resilient backend workflows.

At Beauty 21 Cosmetics, I own end-to-end engineering for L.A. Girl and L.A. Colors storefronts across 2,600+ SKUs. My storefront redesign contributed to 50% online sales growth.

I led the L.A. Colors Online Store 2.0 relaunch, building reusable Liquid sections, Tailwind CSS, JavaScript, and Web Components that cut duplicate code by 60% and deploy time by 45%.

I improve the systems behind commerce, from Cloudflare Worker-backed B2B distributor portals to Python data pipelines and Shopify automation. I’ve reduced quote turnaround from more than three days to under four hours and normalized 10,000+ product attributes.

I also focus on fast, accessible experiences: I raised site health from 52 to 94, reduced LCP by 35%, restored SEO metadata across 600+ pages, and led WCAG 2.2 remediation. I’m currently building Appnux Store Locator, a Shopify app designed to perform at 40,000 locations in 25 languages.

Experience

Work history, roles, and key accomplishments

Current

Appnux Store Locator

Current

Appnux

Aug 2026 - Present (1 month)

Built a Shopify app that renders clustered store maps, handling 40,000 locations in 25 languages. Shipped guided setup, CSV import with geocoding, and theme blocks behind HMAC-verified endpoints and webhooks.

React TypeScript NodeJS PostgreSQL Shopify Webhooks geocoding Analytics

Current

Store Locator Developer

Current

Appnux

Aug 2026 - Present (1 month)

Built a Shopify app for clustered store maps, handling 40,000 locations in 25 languages. Shipped guided setup, CSV import with geocoding, and theme blocks behind HMAC-verified endpoints and webhooks.

React TypeScript NodeJS PostgreSQL Shopify Webhooks geocoding CSV Analytics

Current

Web Developer

Current

Beauty 21 Cosmetics Inc.

Sep 2024 - Present (2 years)

Owned end-to-end engineering for two Shopify storefronts, driving a 50% increase in online sales through redesign and performance optimization. Led the L.A. Colors Online Store 2.0 relaunch, cutting duplicate code by 60% and deploy time by 45%.

Shopify Liquid JavaScript Tailwind Web Components Python Cloudflare Workers GraphQL Klaviyo Bazaarvoice GitHub Actions WCAG 2.2 SEO CI CD

Operations and IT Specialist

Calhome (T-Motor Sports Inc)

Mar 2024 - Jun 2024 (3 months)

Managed Shopify and multi-marketplace operations, building a cross-channel inventory system that achieved 99.5% accuracy and 35% sales growth. Automated reconciliation and reporting, reducing manual entry by 60% and cutting storefront load time by 28%.