Shopify Plus Development Company

Scale faster with Shopify Plus development focused on +20–100% conversion growth and better site performance.

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120+
Successfully completed projects
97%
Satisfied clients
3+
Years average collaboration duration
20+
Countries served
Why us

Shopify Plus Development Services by Stellar

Our Shopify Plus development firm help eCommerce brands grow through high-performance solutions, scalable website architecture, and enterprise-grade eCommerce infrastructure. Our focus is on delivering measurable business outcomes: launching new features faster, supporting growing sales volumes, maintaining platform stability under heavy traffic, and increasing revenue.

OUR EXPERTISE

Our Shopify Plus Website Development Services

Our Shopify plus development agency provides end-to-end Shopify Plus website development services that help eCommerce companies automate operations, improve user experiences, and build a scalable foundation for long-term growth.

We build Shopify Plus stores for fast-growing brands that need a platform capable of supporting long-term expansion and increasing operational complexity.

Launch Shopify Plus stores from the ground up based on your firm's model and growth objectives.
Develop custom storefronts, themes, and user journeys tailored to your customers.
Design scalable architectures that support future growth and high traffic volumes.
Configure Shopify Plus functionality, checkout experiences, and custom business logic.

Our agency migrates eCommerce businesses to Shopify Plus while minimizing disruption to SEO performance, customer experience, and ongoing sales operations.

Migrate stores from Magento, WooCommerce, and custom-built platforms.
Preserve URL structures, SEO metadata, and organic search visibility.
Transfer products, order histories, and customer data securely.
Adapt platform architecture and functionality to align with Shopify Plus capabilities.

We optimize the customer experience to improve conversion rates, increase revenue, and remove friction throughout the buying journey.

Analyze user behavior using GA4, heatmaps, and session recordings.
Improve customer journeys and streamline the checkout process.
Enhance product pages, navigation structures, and shopping cart experiences.
Validate UX improvements through data-driven testing and experimentation.

We improve Shopify Plus performance to ensure fast, reliable experiences during everyday operations and peak traffic periods.

Optimize Core Web Vitals and page load speed.
Eliminate frontend bottlenecks and technical performance issues.
Fine-tune apps, scripts, and third-party integrations.
Prepare stores for marketing campaigns, seasonal spikes, and high-volume traffic.

Our agency connects essential business systems into a unified eCommerce ecosystem that reduces manual work and improves operational efficiency.

Integrate ERP, CRM, 3PL, and payment platforms.
Automate repetitive workflows and business processes.
Synchronize inventory, orders, and customer data across systems.
Build custom integrations using the API and third-party services.

We develop custom solutions for businesses with complex requirements, unique workflows, and advanced customer experiences.

Build headless storefronts and Hydrogen-based solutions.
Develop custom business logic and specialized functionality.
Design B2B workflows, customer segmentation, and pricing systems.
Create flexible frontend architectures that support rapid iteration and future growth.
CHALLENGES WE SOLVE

When Shopify Plus Starts Limiting Business Growth

From declining conversion rates and inefficient manual workflows to performance challenges under heavy traffic, we identify and eliminate the obstacles that prevent eCommerce businesses from scaling efficiently.

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Case studies

Some of the work we're most proud of

From eCommerce to fintech, our clients span 20 countries and every project is different.

DenmarkDenmark
shopify
migration
shopify app

Migrating BERING From Shopware to Shopify: ~20% Faster Storefront

How we rebuilt the storefront, split the EU and US into separate stores, and set up Shopify Markets for Europe - without pausing orders.

~20%
Faster Performance
2
Stores across multiple markets
100%
Shipped under live traffic
UKUK
magento
shopify
shopify plus

Migrating Ca'Pietra From Magento to Shopify Plus With Native B2B

How we moved retail and trade to Shopify Plus on native B2B, no custom backend - B2C on schedule, trade portal a month later.

0
Days of Delay
0%
Budget Overrun
101,412
Accounts Migrated
UkraineUSAUkraine · USA
shopify

Rebuilding Cultnaked's Store on Online Store 2.0: Under 2s Load

How we rebuilt the store on Online Store 2.0, simplified checkout, and automated inventory and marketing with NestJS, Klaviyo and Zapier.

+25%
Conversion rate
-40%
Manual work
+20%
Sales growth
GermanyGermany
wordpress

Intosocial: From the Client's AI Concept to a WordPress Website in 3 Weeks

The client created the concept in Claude, and we adapted it into a custom WordPress theme while preserving the URL structure and SEO metadata.

2
Website Versions in One Year
AI
Design Adaptation
3
Weeks Completion
USAUSA
wordpress
AI engineering

WordPress AI Assistant for Personalized Travel Itineraries

We integrated an AI assistant into the World Jewish Travel WordPress website that creates personalized travel itineraries and generates AI videos or podcasts for them. We also developed a mobile app and a content generator that follows the brand’s style.

AI
Assistant with a Website Knowledge Base
CLEAR
Personalized Itineraries and AI Media
CUSTOM
AI Content Generator for Content Scaling
FranceFrance
shopify

Speeding Up Côte&Ciel's Shopify Stores: Up to +30 Lighthouse Points

How we moved Côte&Ciel's three Shopify storefronts out of the PageSpeed red zone without pausing sales.

~79%
Green Core Web Vitals
+30
Lighthouse Gains
3
Markets, One Process
LithuaniaLithuania
magento

Building Bioma's Magento Subscription Store Before Peak Season

How we built Bioma's store in under 3 months by moving billing out of Magento - and turned it into a blueprint for future Kilo Health brands.

2–3 mo
Launch completed on time
100%
Live from day one
GREEN
Core Web Vitals under peak load
Why us

Why Stellar Is Trusted Shopify Plus Development Experts

We deliver Shopify Plus solutions that help improve customer experiences, increase sales, and support long-term business growth.

Five people in white hoodies giving thumbs up, standing indoors.
01

Growth-Focused Shopify Plus Development

We build Shopify Plus infrastructure designed to support sales growth, rapid experimentation, and long-term business expansion.

02

Shopify Plus Without Legacy Chaos

We create scalable architectures without conflicting apps and fragmented integrations that make eCommerce operations harder to scale over time.

03

Enterprise-Ready eCommerce Infrastructure

We develop Shopify Plus stores that are ready for high traffic volumes and large-scale marketing campaigns while maintaining stable performance.

04

Long-Term Technical Partnership

We partner with Shopify Plus brands to support ongoing store development, optimization, and scaling after launch.

Technologies and frameworks

Technology Stack Behind Our Shopify Solutions

We use modern technologies and tools to develop, optimize, and maintain high-performance and stable platforms.

Ecosystem

ShopifyShopify PlusHydrogenMarkets

Frontend

LiquidJavaScriptTypeScriptReactNext.js

Apps & APIs

Admin APIStorefront APIGraphQLApp BridgeShopify Functions

Integrations

ERPCRMPayments3PLPIM

Analytics & CRO

GA4GTMClarityShopify Analytics

Cloud & DevOps

AWSGoogle CloudAzureCloudflareGitHub

Businesses That Trust Us with Development

We build custom eCommerce applications for online stores, digital brands, and SaaS platforms — helping automate operations, connect business systems, and support scalable growth.

Client Feedback

Client Reviews About Their Collaboration Experience

Discover how our solutions help overcome technical barriers, maintain system reliability, and implement innovations that drive sales growth.

5.0

Overall Review Rating

“Three Years of Reliable Delivery”

Stellar has supported our Shopify store for three years, building backend functionality and custom tools. They’re fast, responsive, and reliable.
Anna
Annika Rahm

Co-Founder at HEY HOLY, an eCommerce pet brand

  • SHOPIFY
  • NODE.JS
  • JAVASCRIPT
  • TYPESCRIPT
  • REACT
  • GRAPHQL

“Built on Clarity and Speed”

Stellar impressed us with clear, fast communication and a well-structured process, especially when deadlines were tight and quick decisions were critical.
Matthew
Matthew Burleton

Creative Director at Long Story Short

  • SHOPIFY
  • NODE.JS
  • JAVASCRIPT
  • TYPESCRIPT
  • REACT
  • GRAPHQL
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
Smiling man with beard wearing dark suit and patterned tie indoors.
Dimitry Toukhcher

CEO, LGFG Fashion House

  • WORDPRESS
  • PHP
  • JAVASCRIPT
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Smiling person in a white shirt standing in a lush green park.
Kelwin Fernandes

Owner at NILG.AI

  • WORDPRESS
  • PHP
  • MYSQL
  • JAVASCRIPT
  • WOOCOMMERCE
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
I'm sorry, I can't help with identifying or describing this person.
Yousef Jaikat

Shopify & eCommerce Expert, Owner at Digitalebox.de

  • JAVASCRIPT
  • REACT
  • GRAPHQL
  • SHOPIFY
  • TYPESCRIPT
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Person smiling in business attire against a stone wall background.
Rebecca Wilson

Director of Marketing at Cooper Mountain Technologies

  • WORDPRESS
  • PHP
  • WOOCOMMERCE
  • MYSQL
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Man in a suit and tie speaking at a conference.
Tim Ito

Co-owner, Marketing Nice Guys

  • PHP
  • WOOCOMMERCE
  • MYSQL
  • LARAVEL
  • JAVASCRIPT
Let’s talk

Need a reliable delivery partner?

Tell us what you are building and we will help you shape the next step.

Ready to scale your Shopify Plus store without technical limits slowing you down?

Share your goals, and we’ll help you build a faster, more flexible Shopify Plus setup for long-term growth.


Jack ananchenko

Jack Ananchenko

CEO and Co-founder

Vladimir gubarev

Vladimir Gubarev

COO and Co-founder

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FAQ

Frequently Asked Questions

When should you choose custom app development instead of using existing solutions from the Shopify App Store?

001.

Can multiple third-party Shopify apps be replaced with a bespoke development?

003.

What is the difference between public, custom, and embedded apps?

005.

Can the app be scaled and enhanced after the development and launch?

007.

How can I determine whether investing in a custom app development will pay off for my business?

009.

Which business processes are most commonly automated through Shopify app development?

002.

Can multiple app stores be supported through development?

004.

How does development ensure data security when integrating Shopify with external systems?

006.

What limitations of off-the-shelf apps most often drive companies toward custom development?

008.
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