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E-Commerce & CMS

Shopify Development Services

Custom Shopify Development

Quecko builds custom Shopify storefronts engineered to maximize conversions and load instantly. From custom Liquid theme development and headless architectures to bespoke private app engineering and third-party systems integrations, we build stores that match your brand identity and scale with your volume.

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400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
400+clients across 20+ countries
$300M+in funds generated
250+products built
150+engineers worldwide
What We Build

Comprehensive Shopify Engineering

01

Custom Liquid Theme Development

Building bespoke Shopify themes from scratch using HTML5, CSS3, and Liquid, ensuring unique designs and fast load times without template bloat.

02

Bespoke Private Shopify Apps

Engineering custom apps using Node.js or Ruby on Rails to handle specialized logic—loyalty systems, custom pricing tiers, or localized tax calculations.

03

Speed & Core Web Vitals Optimization

Compressing images, auditing app scripts, implementing lazy loading, and refactoring CSS/JS to achieve PageSpeed scores above 90.

04

ERP & Accounting System Integrations

Connecting your Shopify database directly to external ERPs (SAP, NetSuite), inventory managers, and accounting systems (Xero, QuickBooks).

05

Headless Commerce Transition

Decoupling the front-end layout (using React or Next.js) from the Shopify backend using the Storefront API for custom designs and fast load speeds.

06

Fulfillment & Logistics Integration

Setting up automated order routing and custom shipping rules, and integrating with 3PL carriers (FedEx, UPS, DHL) for real-time tracking updates.

The Challenge

Generic templates and bloated apps slow down your store and kill conversions.

Shopify makes starting an online store easy, which is why there are so many slow, generic stores on the web. Off-the-shelf themes look generic and restrict your design flexibility. Installing dozens of third-party apps to add basic features inserts bloated scripts into your storefront, dragging down loading speeds and frustrating mobile shoppers. A one-second delay in page load time can reduce conversion rates by up to 20%. Quecko builds Shopify storefronts differently. We engineer lightweight, custom Liquid themes from scratch, write bespoke private apps to handle specialized business logic, and optimize your asset delivery to ensure your store loads instantly on every device.

Execution Blueprint

From Day 1 to Day 90: What Custom Shopify Execution Looks Like

01Day 1–15

Design & Architecture

Visual wireframing, mapping product attributes, defining integrations (ERP/CRM), and planning store architecture.

02Day 16–45

Liquid Theme Development

Developing custom templates, building modular page sections, and implementing responsive layouts.

03Day 46–75

API Sync & App Integration

Writing private app code, connecting ERP databases, and setting up carrier shipping configurations.

04Day 76–90

Optimization & Release

Auditing Core Web Vitals, testing checkout sequences, executing data migrations, and production launch transfer.

Technology

Technologies We Master

Tools, frameworks, and protocols we use to build secure and scalable solutions.

Storefront Languages

LiquidLiquid
HTML5HTML5
CSS3/TailwindCSS3/Tailwind
JavaScriptJavaScript

Backend Integrations

Shopify Storefront API (GraphQL)Shopify Storefront API (GraphQL)
Admin API (REST/GraphQL)Admin API (REST/GraphQL)

App Development

Node.jsNode.js
ReactReact
Next.jsNext.js
PostgresPostgres

Optimization

LighthouseLighthouse
PageSpeed InsightsPageSpeed Insights
Chrome DevToolsChrome DevTools
WebpackWebpack

Deployments & Pipelines

GitHub theme integrationGitHub theme integration
Shopify CLIShopify CLI
Theme KitTheme Kit
Our Edge

We Build Shopify Stores That Perform at Scale.

We write clean, native Liquid code and custom CSS, eliminating the need to install bloated third-party apps that drag down site performance.

No-Bloat Code Policy

We write clean, native Liquid code and custom CSS, eliminating the need to install bloated third-party apps that drag down site performance.

Storefront Speed Obsession

We optimize image assets, defer non-critical scripts, and prioritize lazy loading to maintain mobile PageSpeed metrics above 90.

API & Systems Integration Masters

Our background in enterprise database engineering allows us to connect Shopify with inventory systems, ERPs, and accounting platforms.

250+ Products Shipped

We combine transaction-level security with modern user experience design to deliver stable, high-converting storefronts.

Our Work

Our Projects

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Social Proof

“The work Quecko has done has been absolutely brilliant. Extremely responsive, reliable, and fast — we can throw last minute requests in and they'll get them done by the end of the day.”

Tom Blears

Chief Executive Officer, Bitcast
Engagement

How We Collaborate

Dedicated Shopify Engineering Pod

Full-time Liquid developers, custom app developers, and conversion QA supporting your storefront.

Project-Based Theme Build

End-to-end development of your custom Shopify store, from visuals to launch.

Storefront Optimization Sprint

Focused engineering review to optimize page speeds, resolve layout bugs, and improve Core Web Vitals metrics.

FAQ

Frequently Asked Questions

Yes. We write custom data migration scripts to extract product listings, customer profiles, and order histories from WooCommerce, map them to Shopify's database schema, and verify data parity before launching.

We audit the store using Chrome DevTools and Web Lighthouse. We compress image libraries, defer non-critical JavaScript files, remove unused app code left behind by uninstalled plugins, and combine CSS stylesheets.

Pre-made templates are built to accommodate a broad range of stores, which means they include excess code that slows down your site. A custom Liquid theme is written only with the code your store requires, yielding faster load speeds and complete design freedom.

Yes. We can integrate Shopify with Shopify POS or write custom API bridges to connect with legacy, third-party POS platforms to keep inventory, pricing, and customer details synchronized in real-time.

Blogs

Latest Stories from Quecko

Ready to launch a high-converting, custom Shopify storefront?

From bespoke Liquid theme engineering and private app development to headless commerce integrations and PageSpeed optimization — Quecko builds Shopify stores designed to maximize conversions.

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