Shopify & Shopify Plus Development

Shopify Stores Built to

We build custom Shopify and Shopify Plus stores that boost sales and conversions.

Custom Liquid & Online Store 2.0Shopify Plus EnterpriseHeadless Hydrogen & OxygenConversion-Focused UX
sumitdevtech.com/shopify-website-development

Online Store 2.0

Modular JSON Sections

Frictionless Checkout
1-Click Accelerated Pay
E-Commerce Tech Stack

Our 8-Core Shopify Engineering Ecosystem

From ground-up bespoke theme code and checkout customization to private app integrations and ERP inventory synchronization, explore our Shopify architecture.

01

Bespoke Online Store 2.0 Themes

Zero restrictive templates. We program modular Liquid themes allowing your merchandising team to build custom pages on the fly.

02

Shopify Plus Customization

Custom checkout extensibility, Shopify Scripts, B2B wholesale portals, and automated business workflows via Shopify Flow.

03

Headless Commerce (Hydrogen)

Decoupled Next.js / Hydrogen storefronts powered by Shopify Storefront API for sub-second page transitions and global edge delivery.

04

App Stack & Custom Integrations

Bespoke Node.js / React Shopify apps, private API integrations with ERPs, CRMs (Klaviyo), and 3PL fulfillment networks.

05

Mobile-First Conversion UX

Sticky add-to-cart bars, thumb-friendly navigation, instant drawer carts, and dynamic upsell/cross-sell triggers.

06

Speed & App Bloat Cleanup

Eliminating unused tracking pixels, reducing app script overhead, optimizing hero assets, and achieving 90+ mobile speed scores.

07

Zero-Downtime Store Migration

Seamless migration of customers, product variants, order histories, and SEO redirects from WooCommerce, Magento, or BigCommerce.

08

Multi-Currency & Global Markets

Configure Shopify Markets for localized currencies, regional pricing, multi-language catalogs, and international duties.

Expertise & Services

Comprehensive Shopify Services

Discover our specialized Shopify engineering services crafted to launch new direct-to-consumer brands and scale established high-volume retailers.

01

Custom Shopify Theme Development

Handcrafted, lightning-fast Shopify themes engineered with modular JSON templates, flexible sections, and your unique brand aesthetics.

Liquid / CSSOnline Store 2.0
02

Shopify Plus Enterprise Solutions

Enterprise setups featuring custom checkout extensions, high-volume flash sale readiness, and wholesale B2B pricing portals.

Shopify PlusCheckout Extensibility
03

Conversion Rate Optimization (CRO)

Strategic audit and redesign of product detail pages (PDPs), cart drawers, and checkout steps to minimize abandonment and boost revenue.

CRO AuditingA/B Testing
04

Custom Shopify App Development

Purpose-built private and public Shopify apps connecting your store to proprietary backends, ERPs, and custom calculation engines.

Private AppsShopify API
05

E-Commerce Migration to Shopify

Hassle-free migration from WooCommerce, Magento, PrestaShop, or custom carts with full data preservation and 301 SEO redirects.

Data MigrationZero Lost Sales
06

Shopify Speed & Performance Optimization

Clean up heavy legacy code, eliminate redundant third-party app scripts, and optimize media assets to hit top mobile speed scores.

PerformanceCore Web Vitals
Strategic Process

Our 4-Step Shopify Development Workflow

From merchandising wireframes to custom Liquid programming and staging QA, our systematic workflow ensures your store launches on time and drives revenue.

Step 01

Store Strategy & Catalog Mapping

We analyze your SKU matrix, product variants, customer buying psychology, and third-party app integrations to plan the store layout.

Deliverable: Merchandising Blueprint & Wireframes
Step 02

Custom Theme Coding & Section Build

We program custom Online Store 2.0 Liquid sections, responsive navigation, dynamic cart drawers, and PDP blocks in a private staging store.

Deliverable: Fully Interactive Staging Store
Step 03

Payment, App & Checkout QA

We rigorously test payment gateways (Shopify Payments, PayPal, Klarna), shipping rules, tax calculations, and discount code logic.

Deliverable: End-to-End E-Commerce QA Report
Step 04

Domain Switch & Launch Day Support

Seamless domain switchover, production inventory check, Google Analytics 4 tracking verification, and live order monitoring.

Deliverable: Live Store Launch & Merchant Handbook
0+
Shopify Stores Built
D2C & B2B Brands
0%
Avg Conversion Increase
Post Custom Redesign
0.00.98%
Platform Uptime
Shopify Cloud Reliability
0%
Mobile Responsive
Fluid Mobile Commerce
E-Commerce Verticals

Shopify Stores Built For High-Growth Niches

Custom-crafted merchandising layouts designed specifically for user behaviors and buying patterns across retail categories.

Fashion & Apparel

Color swatches, size chart calculators, shoppable lookbooks, and high-resolution zoom galleries.

Impact+55%

Health & Nutrition

Recurring subscription ordering (Recharge), bundle builders, ingredient accordions, and clinical badges.

Impact3.2x

Consumer Electronics & Tech

Interactive specification comparison tables, warranty upsells, dynamic accessory pairing, and video demos.

Impact+40%

B2B Wholesale & Supplies

Wholesale account registration, tiered volume discounting, quick order forms, and Net-30 invoice terms.

Impact$12M+
Got Questions?

Frequently Asked Questions

Clear answers about our custom Shopify theme engineering, app selections, migration guarantees, and store launch steps.

Pre-made themes are designed to fit everyone, which means they are weighed down by hundreds of unused settings, styles, and bloated scripts that drastically slow down mobile load speeds. A custom theme is coded exclusively for your brand, loading in under a second and directly optimizing your specific conversion funnel.
Let’s work together

Have a Project in Mind? Let’s Build Something Amazing!

Get a free personalized consultation, custom budget estimate & technical blueprint for your business within 24 hours.