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Henry Yim

@henryyim

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Senior Shopify developer driving high-converting, scalable e‑commerce.

United States

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What I'm looking for

I seek remote roles building scalable Shopify/ headless commerce solutions, emphasizing conversion, performance, integrations, and automated release workflows in collaborative, product-focused teams.

I am a conversion-driven Shopify specialist with 8+ years building high-performance storefronts, apps, and headless architectures for global markets. I lead end-to-end delivery—discovery, solution design, implementation and CI/CD—improving Core Web Vitals by 30% through targeted optimizations, enabling Markets/B2B expansion, and automating operations with Flow, Functions and third-party platforms.

I have deep expertise in Shopify Plus, Hydrogen/Remix and Online Store 2.0, plus Admin & Storefront APIs, Checkout Extensibility and Theme/App Extensions. My work includes migrations, private/public apps, multi-currency/market setups, payments/logistics integrations, and analytics-driven CRO that consistently lifts conversion and reduces release cycle time.

Experience

Work history, roles, and key accomplishments

Senior E-Commerce Developer

Wick Creative

Feb 2024 - Apr 2025 (1 year 2 months)

Led Shopify Plus builds and migrations, delivering 6+ storefronts and achieving an average 28% conversion uplift through IA improvements, faster PDPs/PLPs, and CRO experiments; improved LCP/INP and reduced page load ~40% via headless architectures and edge rendering.

Checkout Extensibility Shopify Functions GraphQL Liquid React GA4

Ecommerce Developer

Forloh

Apr 2024 - Aug 2024 (4 months)

Delivered a Shopify storefront with advanced faceted search and taxonomy, built a Python Admin-API data pipeline for thousands of SKUs with webhook-driven near real-time sync, and improved Core Web Vitals by ~35%.

Shopify Python Webhooks Metaobjects SEO Stripe PayPal

Lead Shopify Developer

Trennder Agency

May 2022 - Jan 2024 (1 year 8 months)

Led theme development and bespoke app builds for Shopify/WOOCOMMERCE, integrated subscriptions, UGC, and search systems, and automated catalog/order operations to reduce manual errors while improving SEO and performance.

Online Store 2.0 Theme App Extensions Liquid Zapier Make)SEO Performance Optimization Make

Full Stack Developer

Punch

Oct 2020 - Apr 2022 (1 year 6 months)

Customized Shopify and regional CMS platforms, integrated Japan-specific payments (Konbini/PayPay/Paidy), introduced Next.js modular architecture for multi-brand rollouts, and refactored services to achieve 30%+ faster server responses.

Next.js Shopify PHP AWS CI CD Performance Tuning

Frontend Developer

Moni Group

May 2017 - Jul 2020 (3 years 2 months)

Built a responsive React marketplace frontend, created a Storybook UI component library to accelerate theme/UI work, and supported analytics-driven UX iterations that increased mobile session duration by ~40%.

React Storybook HTML5 Accessibility Analytics