Aaron Chai

• Built a Shopify app (React Router, TypeScript, Node.js, PostgreSQL) that renders clustered store maps and stays fast at 40,000 locations in 25 languages. • Shipped guided setup, CSV import with geocoding, and theme blocks behind 6 HMAC-verified app-proxy endpoints and 4 Shopify webhooks. • Engineered a privacy-safe search analytics dashboard that flags demand gaps where shoppers found no nearby store, with CSV export.

Appnux

• Own, develop and maintain end-to-end engineering for lagirlusa.com and lacolors.com across 2,600+ SKUs: theme architecture, backend services, Klaviyo and Bazaarvoice integrations, and data pipelines, with the storefront redesign driving 50% online sales growth. • Spearheaded the L.A. Colors Online Store 2.0 relaunch from theme architecture to live cutover, implementing reusable Liquid sections, JavaScript, Tailwind CSS, and Web Components across product, collection, and campaign templates, cutting duplicate code 60% and deploy time 45%. • Optimized storefront performance by removing render-blocking third-party scripts, clearing orphaned assets and deal logic, and lifting the site health score from 52 to 94, achieving a 35% reduction in Largest Contentful Paint (LCP) for a faster shopping experience. • Built a full-stack B2B distributor portal for 120 wholesale accounts (gated Liquid frontend, metaobject catalog, filtered search, cross-device wishlists) on a Cloudflare Worker backend with HMAC-verified App Proxy, Admin GraphQL, and rate limiting, cutting quote turnaround from 3+ days to under 4 hours. • Built Python pipelines that normalized 10,000+ product attributes (60% less manual entry), automated catalog refreshes four times daily and review-feed syncs through GitHub Actions (sync lag from 24 hours to under 1 hour), and migrated all 237 product descriptions with an LLM-assisted workflow. • Restored site-wide SEO metadata on 600+ pages and cleared 1,000+ Search Console indexing errors (organic traffic up 65%); led full-site quality audits, WCAG 2.2 remediation that cut pages failing Level A from 539 to 251, and GitHub-to-Shopify CI/CD with automated Liquid linting for faster, safer releases.

Beauty 21 Cosmetics Inc. (L.A. Girl / L.A. Colors)

• Ran Shopify and five-marketplace operations (Amazon, Walmart, Home Depot, Wayfair, Lowe's): listings, pricing, orders, customer issues. • Built a Python and Shopify Flow cross-channel inventory system: 99.5% inventory accuracy, 35% cross-platform sales growth. • Automated reconciliation and reporting with pandas (manual entry down 60%) and optimized storefront pages, cutting load time 28%.

Calhome (T-Motor Sports Inc)

Frontend Developer Career Path

Scrimba

IBM Full Stack Software Developer

Coursera