Jhoan David T.

I help CRO teams and DTC brands turn fragile Shopify themes into stable, experiment‑ready storefronts. My work lives in Liquid, metafields and vanilla JavaScript, running theme‑level A/B tests through GrowthBook and Shoplift, with no flicker, no broken variants, and no impact on Core Web Vitals. I am not a general Shopify developer. I specialize in one thing: building and shipping Shopify experiments that protect revenue while testing bold ideas. I can join strategy calls with your CRO team, walk through the hypothesis, propose the cleanest architecture, and then go into the theme and make it real. 🎯 What I do for Shopify brands & CRO agencies — Theme‑level A/B tests using GrowthBook, Shoplift and custom feature flags (no overlay tools, no DOM swaps, no flicker). — High‑conversion PDPs for complex catalogs: metafield‑driven variants, coverage × material selectors, and size & fit UX that reduces friction instead of adding more clicks. — Mobile‑first PDP UX: sticky add‑to‑cart bars, clean buy boxes, and trust elements, reviews and FAQs placed where real users actually interact. — Cart drawer optimization: free‑shipping thresholds, discount clarity, total savings lines and cross‑sell placements that do not slow the store down. — Metafield architectures and Matrixify workflows so experiments scale across hundreds of SKUs without fragile manual hacks. ✅ What you get working with me — Clean, isolated, and documented Liquid code your team can review and roll back easily. — A duplicate‑theme build process that never touches production until QA is done. — Structured QA across devices, browsers, variant states, stock states, discounts and back‑in‑stock flows before anything goes live. — Clear implementation plans up front: which templates and snippets we touch, what metafields schema we use, and how we handle rollout. — A developer who stays available during launch windows to catch race conditions and edge cases before they touch revenue. 📂 Recent projects For a 4x4 accessories brand, I consolidated 200+ separate products into a single metafield‑driven PDP with a coverage × material selector, then wired it into a Shoplift A/B test running across 218 SKUs without touching checkout behavior. For a European lingerie brand, I rebuilt the entire mobile PDP and size‑selection UX: sticky add‑to‑cart bar, a size matrix showing stock and sale states per variant, and a cleaner minicart that makes discounts and final totals easy to read instead of confusing. 🛠️ Tech stack Shopify · Shopify Plus · Liquid · JavaScript · HTML · CSS · GrowthBook · Shoplift · Matrixify · Figma · GA4 · Klaviyo · Core Web Vitals 🏪 Best fit for CRO agencies running theme‑level experiments · DTC brands on Shopify or Shopify Plus · Teams that already have hypotheses and designs and need clean, QA'd Liquid implementation · Stores with complex catalogs (metafields, multi‑variant PDPs, 100+ SKUs). Invite me to your job, share your store URL, and I will come back with a quick audit and a concrete plan for your next test or PDP sprint. Shopify CRO · A/B Testing · Theme Development · Liquid · GrowthBook · Shoplift · PDP Optimization · Cart Drawer · Metafields · Shopify Plus · Conversion Rate Optimization · Mobile UX · Core Web Vitals · DTC Ecommerce · Shopify Developer · Shopify Expert · Shopify Theme Developer · Shopify CRO Specialist · Experiment Implementation · Feature Flags · Shopify 2.0