SK MOHOTASIN B.
Shopify Front-End Developer | Theme Speed Optimization
10+ years building and refining Shopify storefronts — from ground-up custom themes to surgical fixes on live stores generating serious revenue. I work across the full front-end stack: Liquid, HTML, CSS, JavaScript, jQuery, and AJAX — whatever it takes to make your storefront fast, clean, and conversion-ready. Whether you need a custom theme built from scratch, an existing theme rescued from messy AI-generated code, or a store that scores green on Core Web Vitals, this is what I do every day. No guesswork. No overcomplication. Just clean, maintainable theme work delivered on time. What I can do for your store: → Custom Shopify theme development (OS 2.0 sections, blocks, templates) → Theme speed optimization — real-world performance, not just PageSpeed scores → App and API integration on the front end → Customer events, Web Pixels, and GA4/tracking setup → On-page SEO aligned with your theme structure → Refactoring legacy, bloated, or AI-generated Liquid code → PageFly, Klaviyo, Seal Subscriptions, and third-party app wiring → B2B/wholesale and subscription funnel builds → Direct-to-checkout flows and conversion-focused UX How I work: Send the store URL, what needs fixing or building, and your timeline. You get back a clear plan and honest estimate — fast. I keep communication simple and turnaround tight, and I work well with both solo merchants and agency teams. If you want a developer who takes ownership and delivers clean work — let's talk.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $634
Billed in all: $43,904$44k
$211 in the last 6 months
Across 5 contracts
Across 49 contracts
Earnings, last 30 days
Skill rankings: Top 20% in AJAX
Ranked by MRR among everyone on Upwork with the skill.
- #392AJAX2,006 freelancers · 🇧🇩 #22Top 20%🇧🇩#22 of 113
- #819Liquid1,844 freelancers · 🇧🇩 #32Top 44%🇧🇩#32 of 96
- #854Google Search Console1,908 freelancers · 🇧🇩 #65Top 45%🇧🇩#65 of 164
- #1,353Page Speed Optimization3,190 freelancers · 🇧🇩 #134Top 42%🇧🇩#134 of 381
- #1,356Shopify Plus3,236 freelancers · 🇧🇩 #50Top 42%🇧🇩#50 of 130
- #1,386Shopify Templates3,688 freelancers · 🇧🇩 #64Top 38%🇧🇩#64 of 208
- #1,815Shopify Theme4,613 freelancers · 🇧🇩 #76Top 39%🇧🇩#76 of 247
- #1,875jQuery8,973 freelancers · 🇧🇩 #85Top 21%🇧🇩#85 of 527