+94 SATISFIED CLIENTS
Stellar boosts Shopify sales via data-driven UX, speed, and checkout.
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120+
successfully completed projects
95%
satisfied clients
3+
Years average collaboration duration
20+
countries served
Our company modernizes complex eСommerce applications and legacy systems through comprehensive refactoring and the elimination of technical debt. Our team replaces vulnerable components with robust architecture, preparing your project for scalable growth.
Full cycle development, integration, and scaling of your eCommerce app – from UX design and architecture to stable mobile app operation under high traffic.
We build custom eCommerce mobile app solutions for non‑standard scenarios, delivering flexible solutions with minimal platform constraints.
High‑performance app solutions for Shopify, Magento (Adobe Commerce), and other platforms, tailored to your tech stack.
We craft eCommerce business logic and user flows that simplify interactions and boost conversions across web interfaces and mobile apps.
We integrate ERP, CRM, eCommerce payment gateways, and 3PL into a single ecosystem to automate processes and cut manual work.
We design reliable backend infrastructure and efficient APIs to ensure fast app data processing.
We optimize and scale eCommerce app platforms for high‑load operation, ensuring speed and stability.
We build custom eCommerce applications that remove operational bottlenecks, connect fragmented systems, and support complex business processes at scale.
Challenge
Risk
Solution
Standard eCommerce platforms can’t support complex business logic
Teams rely on workarounds, manual operations, or restrictive platform limitations.
We build custom eCommerce apps around your actual workflows, rules, and growth requirements.
Critical processes are still handled manually
Higher operational costs, slower execution, and increased risk of human error.
We automate repetitive workflows, data processing, order handling, and other high-impact operations.
Business systems operate in isolation
Inconsistent inventory, customer, order, and product data across platforms.
We connect eCommerce platforms with ERP, CRM, PIM, WMS, 3PL, payment, and other systems through reliable integrations.
Existing apps struggle as traffic and operations grow
Performance issues, downtime, and technical limitations begin to affect revenue.
We optimize architecture, backend services, APIs, and infrastructure to keep applications fast and stable under growing load.
From eCommerce to fintech, our clients span 20 countries and every project is different.
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.
AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.
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.
How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.
Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.
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.
How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.
How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.
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.
We combine deep eCommerce expertise, integration experience, and a product-focused development approach to build scalable applications that support complex operations and long-term growth.
We combine deep eCommerce expertise, integration experience, and a product-focused development approach to build scalable applications that support complex operations and long-term growth.
eCommerce-Focused Team
We bring together experienced developers, architects, and product specialists with hands-on expertise across complex eCommerce platforms, workflows, and integrations.
100+ Integration Projects Delivered
We have practical experience connecting eCommerce systems with ERP, CRM, PIM, WMS, 3PL, payment gateways, and other business-critical platforms.
Custom Apps for Complex Operations
We build tailored applications for automation, backend workflows, integrations, customer experiences, and platform-specific business requirements.
Long-Term Product Partnership
We support applications beyond launch with continuous development, optimization, scaling, and technical improvements as business requirements evolve.
Our Shopify CRO services help identify conversion barriers, improve customer journeys, and turn more existing store traffic into revenue through data-driven optimization.
We review analytics, conversion funnels, user behavior, traffic sources, and key storefront pages to identify where customers drop off.
We prioritize issues across navigation, PDPs, collections, cart, checkout, mobile UX, and other conversion-critical touchpoints.
We create hypotheses, prioritize experiments, and define measurable KPIs based on potential business impact and implementation effort.
We optimize UX, content, layouts, merchandising, product pages, cart flows, and Shopify theme functionality.
We track conversion rate, revenue, engagement, and experiment results to understand which changes deliver measurable improvements.
We use performance data and customer behavior insights to refine the storefront and continuously improve conversion efficiency.
We use modern technologies and tools to develop, optimize, and maintain high-performance and stable platforms.
ShopifyShopify Plus
HydrogenMarkets
Liquid
JavaScript
TypeScript
React
Next.js
AWS
Google Cloud
Azure
Cloudflare
GitHubWe build custom eCommerce applications for online stores, digital brands, and SaaS platforms — helping automate operations, connect business systems, and support scalable growth.
netparcel
sigma
a&g
pineapple
bering
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nila
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webloft
lgfgDiscover how our solutions help overcome technical barriers, maintain system reliability, and implement innovations that drive sales growth.
4.9
Overall Review Rating
Co-Founder at HEY HOLY, an eCommerce pet brand
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.
Creative Director at Long Story Short
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.
CEO, LGFG Fashion House
Stellar transformed our sales processes, streamlining operations and automating manual work to save significant time and improve the overall customer experience.
Owner at NILG.AI
Stellar stood out among five shortlisted companies with a detailed, transparent plan and pricing strategy. Jack also provided clear guidance and valuable insights.
Shopify & eCommerce Expert, Owner at Digitalebox.de
Stellar’s Shopify expertise and ability to deliver advanced custom solutions reflect strong technical skills and a focus on scalable, high-quality eCommerce.
Director of Marketing at Cooper Mountain Technologies
They bring a positive attitude and use their expertise to improve projects beyond the brief, considering key factors like SEO, responsiveness, and overall quality.
Co-owner, Marketing Nice Guys
They consistently deliver on time and within budget, follow through on commitments, and stay proactive with communication - even when clients are slow to respond.
Looking to strengthen your online business with an app that automates processes and increases sales?
Vladimir Gubarev
COO and Co-founder
Jack Ananchenko
CТO and Co-founder
From eCommerce to fintech, our clients span 20 countries and every project is different.
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.
AfterCart migration to Shopify 2.0: removed delays caused by on-the-fly protection product creation and reduced the risk of transaction fee losses.
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.
How we helped Côte&Ciel improve performance across three Shopify storefronts, while the EU store recorded a 7% YoY increase in conversion.
Custom quiz, calorie calculator, and multi-discount cart for a mobile-first Shopify store – built with Web Components + Alpine.js.
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.
How Stellar migrated Baketivity from WooCommerce to Shopify Plus, rebuilt subscription logic, preserved data, and added ClassWallet features.
How we migrated King of Christmas from a hardcoded Dawn theme to Horizon, avoided an estimated 1,000+ development hours, and unlocked marketing autonomy.
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.
