Top-Rated
Europe's top eCommerce developers, 2025.
+94 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Whether you're launching your first online store, rebuilding an outdated platform, or scaling your existing e-commerce solution — we bring the expertise to drive your business forward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
4.9Based 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.
High Fashion Demands High Speed: Cultnaked’s Technical Reboot
How Stellar cut Shopify load time to under 2 seconds, increased conversions by 25%, reduced manual work by 40%, and helped drive 20% sales growth.
+25%
Conversion rate
-40%
Manual work+20%
Sales growth
Refactoring the AfterCart Shopify App: From Manual Theme Coding to Native App Blocks
AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.
3
Master Products200+
Price VariantsMINIMAL
Install Support
Why Bioma's Billing Lives Outside Magento - And How We Still Shipped in 2–3 Months
Peak season was 2–3 months away and the subscription store wasn't live yet. See how Stellar built it on Magento with Chargebee billing.
2–3 mo
Launch completed on timeDAY 1
Full commerce flow liveGREEN
Core Web Vitals under peak load
Sculptural Design, Flawless Speed
How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.
GREEN
Green Core Web VitalsMajor
Lighthouse Gains3
Markets, One Process
87% Mobile Traffic and Nearly €1M in Gross Sales: How We Rebuilt Hey Holy's Shopify Frontend
Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.
14,588
Quiz Engagement78.23%
Returning Customers2.5%
Mobile Performance
Every Product Sells Once
How we optimized a London antique retailer's Magento 2 store - custom analytics, faster search, −22% order processing time and +18% ROAS. 8-year partnership.
+18%
ROAS−22%
Order processing time10+
Hours saved weekly
How We Migrated Baketivity to Shopify Plus and Rebuilt Its Subscription Ecosystem
How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.
~65%
Returning customers1 min
0 Data Loss$
Custom Subscriptions
Shopify Horizon Migration: How King of Christmas Reduced Hardcoding and Achieved Content Autonomy
How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.
4.8
Trustpilot rating130K+
Customer reviews0
Downtime
Green Zone for an Online Pharmacy: How We Migrated Chemist4You to Hyvä Themes Without Downtime
See how Stellar moved a UK online pharmacy to Hyvä Themes, upgraded Magento to 2.4.7-p1, and hit Google's green Core Web Vitals - with zero downtime.
4.8
Trustpilot rating130K+
Customer reviews0
Downtime
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.
We build digital assets where international-level security is combined with high performance and transparent project management.
01
Focus on conversion
We design a seamless customer journey, systematically eliminating key obstacles on the path to order completion.
02
Security and accessibility
We design a seamless customer journey, systematically eliminating key obstacles on the path to order completion.
03
Process transparency
We design a seamless customer journey, systematically eliminating key obstacles on the path to order completion.
04
Speed and scalability
We design a seamless customer journey, systematically eliminating key obstacles on the path to order completion.
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.
4.9
Overall Review Rating
Annika Rahm
Co-Founder at HEY HOLY, an eCommerce pet brand
5.0
Three Years of Reliable Delivery
Stellar has supported our Shopify store for two years, building backend functionality and custom tools. They’re fast, responsive, and reliable.
Matthew Burleton
Creative Director at Long Story Short
5.0
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.
Dimitry Toukhcher
CEO, LGFG Fashion House
5.0
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
Kelwin Fernandes
Owner at NILG.AI
5.0
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Yousef Jaikat
Shopify & eCommerce Expert, Owner at Digitalebox.de
5.0
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
Rebecca Wilson
Director of Marketing at Cooper Mountain Technologies
5.0
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Tim Ito
Co-owner, Marketing Nice Guys
5.0
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Managed development: stages of creating your business asset
We ensure a systematic approach to building high-load e-commerce systems and delivering reliable development services for businesses that need a scalable digital website infrastructure
- 01
Discovery & Consulting
We analyze business logic and technical requirements to select the optimal architecture that minimizes future maintenance costs and supports long-term website scalability.
- 02
Design & Prototyping
We analyze business logic and technical requirements to select the optimal architecture that minimizes future maintenance costs and supports long-term website scalability.
- 03
Development
We implement software logic, integrate key business systems (ERP, CRM, payments), and build a fault-tolerant server-side infrastructure.
- 04
Testing & QA
We perform comprehensive functional, load, and security testing to ensure stable platform performance during peak periods.
- 05
Launch
We configure the infrastructure and carry out the final release without interrupting business processes or user access to the site.
- 06
Support & Growth
We provide technical website support, performance monitoring of the e-commerce platform, and planned implementation of new features.
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.
Vladimir Gubarev
Co-founder, COO
Jack Anachenko
Co-founder, CEO
Bogdan Grymalo
Head of Partnership
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