Partnering with high-growth Shopify DTC brands to eliminate third-party script bloat, remediate mobile Core Web Vitals, and unlock sub-second checkout speeds.
Bridging the gap between technical storefront engineering and commercial e-commerce growth.
Mahafuzul Haque (MH Forhad) is the Founder & Principal Performance Consultant at SystemDevify and Lead Full-Stack Shopify Architect. Having manually architected, built, and optimized 170+ Shopify Storefronts and 2 custom Shopify Apps over the past 5+ years, he partners directly with high-growth direct-to-consumer (DTC) brands to diagnose storefront bottlenecks and translate technical speed optimization directly into checkout conversion gains.
SystemDevify rejects the typical agency playbook of stacking monthly subscription apps that cripple mobile loading speeds. Instead, we direct end-to-end theme engineering using native Shopify Dawn (OS 2.0) theme systems, pure Vanilla JavaScript, and native Web APIs with zero third-party script bloat. Every line of code is written to protect merchant revenue, eliminate render-blocking waterfalls, and maintain bulletproof stability during high-volume promotional sales.
From custom serverless microservices, secure webhook middleware, and Shopify GraphQL Admin APIs to Cloudflare edge DNS routing and email deliverability infrastructure (SPF, DKIM, DMARC), we provide complete architectural integrity for modern e-commerce brands.
Most high-growth stores don't suffer from a lack of traffic; they suffer from storefront friction and conversion leakage.
Slow mobile Largest Contentful Paint (LCP) and poor Interaction to Next Paint (INP) drive up bounce rates and waste paid ad spend. We dissect your network waterfall to deliver sub-second product page paints that capture instant customer attention.
Every newly installed app drags down checkout velocity with external tracking scripts and DOM bloat. We audit, consolidate, and rebuild costly app features natively using pure Liquid and vanilla Web Components with zero external script drag.
Delayed AJAX drawer carts, broken variant selectors, and glitchy discount popups kill buyer momentum. We re-engineer bulletproof native cart flows and custom bundles that update instantaneously with zero layout shift.
Beyond theme templates, we engineer resilient e-commerce infrastructure: Cloudflare edge proxies, serverless webhook processors, and REST/GraphQL Admin API integrations that automate backend workflows cleanly.
Independent e-commerce data consistently proves that every 100ms improvement in mobile page load speed increases checkout conversions by up to 1%. Standard Shopify themes weighed down by third-party tracking apps often delay First Contentful Paint (FCP) and Largest Contentful Paint (LCP) by 3 to 6 seconds. Our diagnostic discovery systematically reorganizes the HTML <head> asset sequence, eliminates render-blocking dependencies, and minifies critical CSS so your marketing budget converts at maximum efficiency.
Structured, zero-risk technical consulting tailored to protect and scale your live store revenue.
A comprehensive forensic audit of your live storefront's network waterfall, script execution costs, app payload drag, and checkout friction points with an actionable engineering roadmap.
Focused technical remediation targeting sub-second LCP, sub-200ms INP, and zero CLS across your highest-traffic product and collection pages to immediately improve return on ad spend (ROAS).
Eliminate costly monthly app subscriptions by rebuilding custom bundle builders, drawer carts, and dynamic upsell sections natively into your Dawn theme with zero third-party script overhead.
To ensure 100% continuous business operations, all architectural changes and speed sprints are executed strictly on isolated staging themes using our zero-downtime protocol. Merchants review and test all changes on password-protected duplicate themes with live product data before any code is approved and cleanly published to the live production storefront.
Ready to eliminate storefront bloat and capture lost checkout revenue? Connect directly for a diagnostic consultation:
Prefer platform escrow protection? Verified client engagements also available via Upwork and Fiverr Pro.
Building clean, zero-bloat Shopify tools and native OS 2.0 architectures takes intense focused sprints. Support independent maintenance or secure direct commercial architecture support.
$10/mo
Back open-source code maintenance and get credited in repository releases.
Back on GitHubCustom
Direct integration support, custom Liquid schema development, and speed overhauls for production stores.
Inquire Direct