Top-Rated
Europe's top eCommerce developers, 2025.
200+ satisfied clients
Ecommerce development services
Whether you're launching your first online store, rebuilding an outdated platform, or scaling your existing e-commerce solution — we bring the expertise to drive your business forward
Talk to foundersGet a free estimate within 24 hours
75%
Clients increase sales
120
Successfully delivered projects
3+
Years average clients partnership
20
Countries, US, UK, EU market
Why us
Engineering e-commerce platforms that drive real growth
We help ecommerce brands build platforms that can withstand traffic, catalog, and sales growth. We design the architecture, integrations, and user experience to make your store run fast, stable, and without technical limitations. We work as a technology partner that helps you choose the right platform, build a scalable ecommerce architecture, and launch a solution ready for business growth.
TOP development and digital expertise
5.0Based on 50+ verified customer reviews
Hyvä Partner
Certified partner for fast Magento frontends
Amasty Partner
Verified Magento extensions partner
Top-Rated
Top Rated Plus - Highest-tier agency on Upwork
Top-Rated
Top Rated Plus - Highest-tier agency on Upwork
Top-Rated
Top Customer Software Developers, Europe 2025
ISO Certified
ISO 270001 Certified for data security and protection
Adobe Partner
Official Adobe Commerce ecosystem partner.
Top-Rated
Top Shopify Software Developers, Europe 2024
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.
Denmark
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 markets100%
Shipped under live traffic
UK
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 Delay0%
Budget Overrun101,412
Accounts Migrated
Ukraine · USA
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
Germany
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 YearAI
Design Adaptation3
Weeks CompletionUSA
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 BaseCLEAR
Personalized Itineraries and AI MediaCUSTOM
AI Content Generator for Content Scaling
France
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 Gains3
Markets, One Process
We have solutions
When a Business Needs Our Ecommerce Expertise
Often, ecommerce problems do not appear during a crisis. Their root cause is frequently hidden in the system architecture. We build platforms where technical risks are addressed at the design stage.
Launching a new projects & SMBs
We help launch online stores quickly on Shopify or WooCommerce without unnecessary technical complexity.
Scaling a D2C brand
We create custom UX/UI based on customer behavior analytics and unify all sales channels into a single system.
Enterprise ecommerce
We design microservice systems and headless architecture to ensure stable performance under high loads.
No matter where you are in your growth journey — the challenges are real, and so are our solutions.
SERVICES
Our Company's eCommerce Software Development Services
We deliver a full cycle of ecommerce platform development, from designing flexible architecture to implementing Al tools for personalization and sales process automation.
eCommerce App Development Service
We build scalable eCommerce apps that extend store functionality, automate operations, improve customer experience, and support long-term business growth.
Custom Ecommerce Development Services
We build custom eCommerce solutions around your business processes, integrations, creating scalable platforms without forcing you into rigid templates.
Headless Ecommerce Development Services
We build headless eCommerce solutions that separate frontend and backend, giving businesses more flexibility, faster experiences, and greater control over future development.
Ecommerce Migration Services
We migrate eCommerce stores, products, customers, orders, and integrations to modern platforms while minimizing downtime, data loss, and disruption to daily operations.
Ecommerce Replatforming Services
We replatform outdated or limiting eCommerce systems to scalable modern architectures, improving performance, maintainability, integrations, and long-term flexibility.
Professional eCommerce Consulting Services
We help businesses make better eCommerce decisions through technical audits, architecture planning, platform selection, performance analysis, and practical development roadmaps.
eCommerce Web Development & Design Services
We design and develop conversion-focused eCommerce websites that combine strong UX, responsive design, performance, and scalable functionality across devices and markets.
E-commerce Platforms Expertise
Ecommerce Platforms Our Company Works with
Shopify and Shopify Plus
Shopify is a convenient platform for quickly launching an ecommerce store, while Shopify Plus is designed for fast-growing brands that need scalability and enterprise-level features.
Magento (Adobe Commerce)
A powerful platform for large ecommerce projects with complex catalogs, integrations, and a need for deep customization.
WooCommerce
A flexible solution for businesses on WordPress that allows for quick online store launches and scaling through a large ecosystem of plugins.
Salesforce Commerce Cloud
We implement enterprise solutions on Salesforce Commerce Cloud for large brands, providing deep CRM integrations, personalization, and omnichannel sales.
What`s next?
Get a free tailored Estimate and Growth Plan - contact us today and receive a customized plan for your business, with a demo available to preview.
Jack Ananchenko
CEO and Co-founder
Vladimir Gubarev
COO and Co-founder
Industries
Ecommerce Solutions Tailored to Your Industry
We design solutions that take into account the business logic of your industry, from subscription systems in D2C to deep integrations with ERP systems for wholesale operations.
B2B & Wholesale
Companies with wholesale sales, complex pricing, personal customer accounts, and ERP integrations.
Fashion & Apparel
Brands with large catalogs, product options (size/color), fast UX, and high mobile conversion requirements.
Automotive Parts
Brands with large catalogs, product options (size/color), auto parts stores with VIN search, fitment data, and complex compatibility filters. Fast UX and high mobile conversion requirements.
Health & Beauty / DTC Brands
Direct-to-consumer brands where subscriptions, personalization, and repeat purchases are important.
Electronics & Consumer Tech
Catalogs with product configurators, feature comparisons, and complex technical specifications.
Food & Grocery
Ecommerce with local delivery, inventory management, and integrations with POS and logistics.
Enterprise Solutions
Integrated Solutions for Your Business Model
From API-first platforms to multi-vendor systems, we build custom logic that removes technological limitations and elevates your business to the enterprise level.
Why us
Why Companies Choose Stellar for E-commerce Development
We build digital assets where international-level security is combined with high performance and transparent project management.
01
Focus on conversion
We optimize customer journeys, product discovery, and checkout flows to reduce friction and increase conversion rates.
02
Security and accessibility
We build secure, accessible eCommerce experiences that protect customer data and work reliably across devices and user needs.
03
Process transparency
We keep scope, priorities, progress, and risks visible throughout the project so you always know what is happening and why.
04
Speed and scalability
We build fast, scalable eCommerce systems designed to handle growing traffic, catalogs, integrations, and business complexity.
01
Focus on conversion
We optimize customer journeys, product discovery, and checkout flows to reduce friction and increase conversion rates.
02
Security and accessibility
We build secure, accessible eCommerce experiences that protect customer data and work reliably across devices and user needs.
03
Process transparency
We keep scope, priorities, progress, and risks visible throughout the project so you always know what is happening and why.
04
Speed and scalability
We build fast, scalable eCommerce systems designed to handle growing traffic, catalogs, integrations, and business complexity.
System Integration
Integration Architecture for Modern E-commerce
We transform your platform into a central hub where every system operates synchronously to fully automate key business processes.
Clients Who Trust Us with Development
We help companies build and grow solutions focused on stability, efficiency, and business results.
netparcel
sigma
a&g
pineapple
bering
cultnaked
lock
nila
heyholy
webloft
lgfgClient 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.
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 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.
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.
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.
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.
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.
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.
eCommerce Development Process
We provide end-to-end eCommerce development services — from discovery and architecture to development, launch, optimization, and long-term support.
- 01
Discovery & Strategy
We analyze business goals, technical requirements, workflows, integrations, and growth plans to define the right eCommerce solution.
- 02
UX/UI & Architecture
We design customer journeys, storefront structure, system architecture, and integration logic for scalability and usability.
- 03
eCommerce Development
We build storefronts, custom functionality, backend logic, APIs, integrations, automation, and platform-specific features.
- 04
Testing & QA
We test functionality, checkout, integrations, performance, security, responsiveness, and critical customer flows.
- 05
Launch & Deployment
We prepare the production environment, migrate required data, validate key processes, and launch with minimal disruption.
- 06
Support & Growth
We monitor performance, improve UX and functionality, optimize infrastructure, and support ongoing eCommerce growth.
Our team
A Team that Transforms Ideas Into Business Assets
80+
Specialists
Our specialists combine deep technical expertise with a business-oriented approach to create e-commerce platforms that drive revenue growth.
Jack Ananchenko
Co-founder, CEO
Vladimir Gubarev
Co-founder, COO
Bogdan Grymalo
Head of Partnership
Luiza Gorban
Human Resources Director
Evgeniya Chilikina
Head of Shopify Department
Ruslan Kozyrenko
Shopify Team Lead
Dmytro Romanenko
Shopify Team Lead
Sofia Sukhyna
Head of Design Department
Yana Kalnysh
Lead UI/UX, Product Designer
Yulii Morozov
Backend Team Lead
Vladyslav Briukhanov
Frontend Team Lead
Artem Herasko
WordPress Team Lead
Victoriia Kovalchuk
QA Team Lead
0 of 0
Technologies and frameworks
Modern Tools for Stable E-commerce Platforms
We use a tech stack that allows projects to be launched quickly and adapted to the specific needs of a company’s operations.
Digital Design
Figma
Adobe Photoshop
Adobe XDBack-end
PHP
Laravel
Symfony
Java
Spring
Nest.js
Express.jsFront-end
React
Next.js
Angular
Vue
NuxtHeadless Commerce
Headless Commerce ArchitectureCMS / E-commerce Platforms
Shopify Plus
Adobe Commerce (+Cloud)
WordPress
WooCommerceFAQ