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  1. Onix
  2. Industries
  3. eCommerce Development
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Custom eCommerce Development, Recovery & Integrations that Sell

Off-the-shelf eCommerce tools can get you started, but they rarely take you where you need to go. Slow page loads, rigid templates, missing features, and disconnected systems leave revenue on the table.

Onix helps digital retailers, DTC brands, and B2B marketplaces escape those limits with eCommerce software development services that fit your business like a glove.Whether you’re launching a new platform, upgrading to a modern architecture, or recovering a struggling store, we build systems designed to scale, integrate, and convert.

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Trusted by clients worldwide

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successfully delivered
projects

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years of software
development
experience

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countries represented
by our clients

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talented developers and
experts on staff

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From stuck to selling: eCommerce development services that fix, build, and scale your store

Custom eCommerce website development

01

Custom eCommerce website developmentSEO-friendly, high-performance online stores built around your brand identity, customer journey, and growth strategy.

Mobile eCommerce app development

02

Mobile eCommerce app developmentNative and cross-platform eCommerce apps designed for sales on the go, loyalty building, and personalized experiences.

Headless commerce development

03

Headless commerce developmentFast, flexible storefronts with decoupled frontends for omnichannel delivery and easy scaling.

eCommerce platform migration & integration

04

eCommerce platform migration & integrationSmooth replatforming from Magento, Shopify, WooCommerce, and integrations with ERP, CRM, and analytics systems.

AR/VR for eCommerce

05

AR/VR for eCommerceImmersive product demos, virtual try-ons, and 3D store experiences to boost engagement and reduce returns.

CRM & ERP integration

06

CRM & ERP integrationAutomate back-office processes and unify customer data with Salesforce, SAP, Microsoft Dynamics, or custom ERP systems.

Support & maintenance

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Support & maintenanceWe offer reliable ongoing support, upgrades, user training, and maintenance to ensure your platform evolves with your business.

Got an idea or facing performance issues?

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You can try an off-the-shelf solution…But what if it’s holding you back?

Generic eCommerce platforms promise quick launches, but they often come with a hidden cost: rigid templates, limited integrations, and performance ceilings you can’t break. You end up bending your business to fit the tool instead of having a platform that bends to fit you.At Onix, we build custom eCommerce software development solutions designed to solve the issues that slow modern sellers down: slow load times, poor mobile conversions, integration gaps, and limited customization.

Marketing campaign management solutions

Automate and personalize marketing campaigns to boost engagement and ROI.

Conversion optimization tools development

Custom A/B testing, event tracking, and performance tools to lift conversion rates.

Personalized product suggestions

AI-driven suggestion engines that increase order value and relevance.

Gamification & engagement systems

Loyalty challenges, badges, and progress trackers to retain customers.

Natural language shopping assistants

AI-powered chatbots and voice assistants that guide shoppers to purchase.

AI-powered cart recovery & performance fixes

Real-time cart abandonment detection with personalized re-engagement strategies.

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Custom eCommerce platform built for your industry’s needs

No two industries sell products or engage customers in the same way. Onix delivers custom eCommerce software development services that adapt to your business model, customer journey, and growth goals. And you can be building from scratch, upgrading, or recovering an underperforming store.

01

E-commerce & Retail

From high-traffic DTC brands to complex B2B marketplaces, we create scalable online stores with advanced integrations, personalized shopping experiences, and conversion-focused design.

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    02

    Healthcare

    We develop secure, HIPAA-compliant eCommerce platforms for medical product sales, telehealth services, and subscription-based wellness programs, ensuring both compliance and a user-friendly buying process.

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      Travel & hospitality

      Our team builds fast, intuitive booking systems, travel marketplaces, and mobile-first experiences with seamless payment integrations and upselling features tailored to the travel buyer’s journey.

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        Sports & fitness

        We design eCommerce solutions for fitness gear, virtual coaching subscriptions, membership platforms, and fan merchandise that are optimized for engagement, retention, and repeat sales.

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          Stories from businesses like yours

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          USA

          Sports & Fitness

          BetterMe shopify store for sportswear

          Solution:

          A mobile-first Shopify storefront with custom product recommendation logic, loyalty integrations, and optimized checkout flow, all aligned with BetterMe’s brand identity and massive mobile audience.

          Result:

          Increased cart conversion rate, faster purchase flow, and stronger brand presence within the BetterMe ecosystem.

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          Switzerland

          Manufacturing

          360° shower sales app for duscholux

          Solution:

          Multi-app platform including a tablet-based product configurator, back-office management dashboard, and mobile installer tracker built with React Native, GraphQL, and Azure DevOps for unified, scalable performance.

          Result:

          Shorter sales cycles, reduced quoting errors, and improved transparency across sales and installation processes.

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          USA

          Beauty, Cosmetics

          Cosmetics analysis AI app – beauty eCommerce + AI

          Solution:

          A mobile app with a database of 45K+ cosmetics and 800K+ ingredients, AI-powered safety scanning, and product purchase integration designed for global scalability and trust-building.

          Result:

          Over 100K active users, increased product trust, and monetization through targeted eCommerce sales.

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          Explore our works

          Explore how we’ve solved challenges similar to yours.

          View case studies
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          What happens when Onix builds an eCommerce platform around your business

          0% faster
          go-to-market

          With tailored integrations and optimized workflows, you can launch your eCommerce store or new features in half the usual time.

          0x better
          customer retention

          Personalized shopping experiences, loyalty programs, and targeted campaigns keep customers coming back.

          0% boost
          in conversion rates

          UX-focused design, personalized product recommendations, and optimized checkout flows help turn more visitors into buyers.

          0% improvement
          in mobile sales

          Mobile-first development ensures a seamless shopping experience across devices, driving more revenue from mobile users.

          0% fewer
          manual processes

          Automated inventory updates, order processing, and customer communications free your team to focus on growth.

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          uptime reliability

          With robust architecture and monitoring, your store stays online and operational even during peak traffic.

          Testimonials

          "Post-refactoring, the codebase became maintainable and scalable, leading to a 30% reduction in bug reports related to legacy code problems. Through proactive bug fixing, the number of critical post-launch issues was reduced by 35%, resulting in a smooth UX and fewer support requests."

          Ryan Rosenbaum

          CPO, Phlex Sports Co

          "Onix's work improved user engagement and functionality and reduced the number of reported bugs and downtime. The team was reliable and responsive, managed deadlines effectively, and aligned with the expectations."

          Yaneev Lanis

          Founder, Secret Flights Ltd

          "We hired them to do a full website/web app overhaul, including documentation, development, design, and testing. They always went above and beyond and really viewed themselves as an extension of our company's team."

          Jonah Fialkow

          CEO, Bracketology, LLC

          "We hired Onix to build our whole platform, from start to finish. After two months, the site already has 600 paying subscribers. Onix's workflow is great. Moreover, they put in extra effort to resolve issues that arise."

          Mark Innes

          CEO, MiPaddle

          "Onix has successfully reduced the number of issues in Crashlytics and improved the app's stability, earning positive feedback from end customers. The level of communication felt as though they were an extension of our team."

          Peter Altholz

          CEO, Bar Crawl Nation LLC

          "Post-refactoring, the codebase became maintainable and scalable, leading to a 30% reduction in bug reports related to legacy code problems. Through proactive bug fixing, the number of critical post-launch issues was reduced by 35%, resulting in a smooth UX and fewer support requests."

          Ryan Rosenbaum

          CPO, Phlex Sports Co

          "Onix's work improved user engagement and functionality and reduced the number of reported bugs and downtime. The team was reliable and responsive, managed deadlines effectively, and aligned with the expectations."

          Yaneev Lanis

          Founder, Secret Flights Ltd

          "We hired them to do a full website/web app overhaul, including documentation, development, design, and testing. They always went above and beyond and really viewed themselves as an extension of our company's team."

          Jonah Fialkow

          CEO, Bracketology, LLC

          "We hired Onix to build our whole platform, from start to finish. After two months, the site already has 600 paying subscribers. Onix's workflow is great. Moreover, they put in extra effort to resolve issues that arise."

          Mark Innes

          CEO, MiPaddle

          "Onix has successfully reduced the number of issues in Crashlytics and improved the app's stability, earning positive feedback from end customers. The level of communication felt as though they were an extension of our team."

          Peter Altholz

          CEO, Bar Crawl Nation LLC

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          Digital commerce partnerships & expertise

          We deliver eCommerce software solutions using a proven, modern technology stack. This means you get a platform that’s fast, scalable, secure, and ready to integrate with the tools your business relies on.

          Platforms – the eCommerce engines we work with:

          SALESFORCE COMMERCE CLOUD

          Enterprise-grade cloud eCommerce platform

          SHOPIFY

          Popular, easy-to-manage online store platform

          WOOCOMMERCE

          Flexible eCommerce plugin for WordPress

          BIGCOMMERCE

          Scalable SaaS platform for growing businesses

          MAGENTO / ADOBE COMMERCE

          Highly customizable enterprise eCommerce

          Technologies – frameworks and languages we use to build and customize your store:

          REACT / NEXT.JS

          Modern, fast front-end development

          VUE.JS

          Flexible JavaScript framework for UI

          NODE.JS / NESTJS

          High-performance backend development

          PYTHON / DJANGO

          Secure backend and API development

          LARAVEL / PHP

          Popular backend framework for complex features

          TYPESCRIPT

          Strongly-typed JavaScript for better code quality

          GRAPHQL

          Efficient API queries for faster loading

          REST APIS

          Standard integration method for most platforms

          ERPs & CRMs – business management and customer systems we integrate:

          SALESFORCE

          CRM for sales, marketing, and service

          SAP

          Enterprise resource planning

          ZOHO

          Cloud CRM for SMEs

          MICROSOFT DYNAMICS

          CRM & ERP for enterprise

          ODOO

          Open-source ERP/CRM suite

          NETSUITE

          Cloud ERP for finance and operations

          CUSTOM-BUILT SYSTEMS

          Proprietary business management solutions

          Turn your eCommerce roadblocks into revenue

          No matter the stage of your store — unfinished, outdated, or underperforming — Onix will transform it into a high-performing custom eCommerce software solution. Clear steps, smart strategies, and zero guesswork.

          1

          Schedule a consultation

          It starts with a conversation. Schedule your free consultation.

          2

          Sign
          an NDA

          We’ll sign an NDA. Then our experts will review your code, software, or concept at no cost.

          3

          Get audit report

          Within a week or two, we’ll send you an audit report or development plan outlining what’s wrong, why it’s happening, and how we can move forward.

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          You set your goals. We deliver the eCommerce platform to achieve them. We design eCommerce website development services that adapt to your business now and scale with you into the future.

          Insights from our experts

          Blog Image

          How to Build an eCommerce Website (Timeline & Costs)

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          9 Basic Tips for Architecting a Selling E-Commerce Site

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          3D Modeling For Ecommerce: Sell More & Reduce Returns

          FAQs

          How long do you typically develop eCommerce solutions?

          The timeline for our eCommerce software development services depends on the project’s complexity, integrations, and design requirements. A basic custom eCommerce software development project may take 3–4 months, while large-scale eCommerce website development services with advanced features, ERP/CRM integration, and mobile apps can take 6–9 months. We use an agile approach to deliver usable features early so you can start seeing results before full launch.

          How does Onix ensure eCommerce performance & security?

          As an experienced eCommerce software development company, Onix follows strict performance optimization and security protocols. We design scalable architecture, implement caching strategies, and ensure fast load times across devices. For security, we use SSL/TLS encryption, role-based access control, secure API integrations, and follow PCI DSS compliance for payment processing, ensuring your eCommerce software solutions remain safe and reliable.

          Is custom eCommerce development undoubtedly better than off-the-shelf platforms?

          While off-the-shelf platforms like Shopify or WooCommerce are quick to launch, they often limit scalability, customization, and integration flexibility. With custom eCommerce software development, you get a platform tailored to your business model, customer journey, and growth plans. This means no vendor lock-in, seamless third-party integrations, and the ability to scale without costly workarounds. Our eCommerce development solutions are built for long-term ROI and adaptability.

          What tools are essential for a successful eCommerce launch?

          A successful launch combines the right eCommerce web development services with strategic integrations. Essential tools include a robust CMS or eCommerce platform (Magento, Shopify, BigCommerce), secure payment gateways, inventory and order management systems, CRM integration, analytics tools, and marketing automation. Our eCommerce software solution development process ensures all these tools work together for maximum efficiency and conversion.

          What can I expect working with Onix?

          When you partner with Onix for custom eCommerce software development, you can expect clear communication, agile delivery, and measurable results. We start with a detailed discovery phase, provide transparent progress reports, and deliver optimized, secure, and scalable solutions. Whether you need a new build, a platform migration, or performance recovery, our team of dedicated eCommerce development experts ensures your store meets both current demands and future goals.