
Proven Delivery Track Record
With 15+ years of experience and 300+ successful projects, we consistently deliver high-performing software solutions, maintaining a 98% client retention rate and 90% satisfaction.
We build on the leading commerce platforms and connect them to the CRM, ERP, marketing and work management tools your team already uses, including Odoo, HubSpot, Zoho and monday.com.






From the first strategy session to post-launch growth, our ecommerce development service covers every stage of building, scaling and modernising your online store.

We audit your current store, tech stack and customer journey, then recommend the right platform, architecture and roadmap. Platform selection covers Shopify Plus, Adobe Commerce, BigCommerce, WooCommerce and headless options, with clear cost and timeline estimates. You get a practical plan covering UX, conversion, integrations, SEO and AI readiness, so every development dollar is tied to a business goal.

We design and build Shopify and Shopify Plus stores, custom themes and apps. Our developers work with Online Store 2.0, Shopify Functions, Checkout Extensibility, Shopify Markets for multi-currency selling, and Hydrogen for headless storefronts. Whether you are launching a new brand, moving to Shopify Plus or extending an existing store, we deliver clean, maintainable code that keeps your store fast and upgrade-safe.

When off-the-shelf themes are not enough, we build custom ecommerce solutions around your business model: subscriptions, product configurators, bundles, loyalty programs, and multi-store or multi-language setups. We use modern frameworks such as Next.js, React, Node.js, Laravel and Python, with clean APIs and automated testing, so your platform can grow without costly rebuilds.

Headless commerce separates the storefront from the commerce engine, giving you faster pages, full design freedom and the ability to sell on web, apps, kiosks and marketplaces from one backend. We build headless storefronts with Next.js or Shopify Hydrogen, connect headless CMS platforms such as Payload, Strapi or Contentful, and deploy on edge hosting for excellent Core Web Vitals.

We add AI where it lifts revenue: AI product search, personalised recommendations, AI shopping assistants, automated product content and smarter merchandising. We also prepare your store for agentic commerce, where AI agents in ChatGPT, Gemini, Google AI Mode and Microsoft Copilot discover and recommend products. That means real-time product feeds, accurate structured data, Shopify Agentic Storefronts and support for emerging standards such as the Universal Commerce Protocol (UCP) and Model Context Protocol (MCP).

We build B2B portals with customer-specific price lists, quick order forms, quotes, payment terms and company accounts on Shopify Plus B2B, Adobe Commerce or custom stacks. For marketplaces, we develop multi-vendor platforms with seller onboarding, commission rules, payouts and smart order routing.

We connect your store to the systems that run your business: ERP such as Odoo, Microsoft Dynamics and NetSuite, CRM and marketing tools such as HubSpot, Zoho and Klaviyo, plus PIM, POS, 3PL, shipping, accounting and payment gateways such as Stripe and PayPal. Automated data flows remove double entry, keep stock and orders in sync across every channel, and give you a single view of each customer.

We migrate stores from Magento 1 and 2, WooCommerce, OpenCart, PrestaShop and legacy custom platforms to Shopify, Shopify Plus, Adobe Commerce, BigCommerce or headless architectures. Products, customers, orders, reviews and URLs are transferred securely, with 301 redirects and SEO checks to protect your rankings and traffic.

After launch, we keep your store fast, secure and growing. Our team handles Core Web Vitals optimisation, accessibility (WCAG), security patches, platform upgrades, A/B testing and conversion rate optimisation. Flexible support plans cover monitoring, bug fixes and new feature development, with response times agreed in a clear SLA.

Digital agencies and web studios use ONEXT as their white-label ecommerce development team. We work under your brand, in your project tools and to your processes, from Shopify builds to Magento and WooCommerce maintenance. You keep the client relationship and your margins while scaling delivery capacity with a dedicated offshore team in Vietnam.

With 15+ years of experience and 300+ successful projects, we consistently deliver high-performing software solutions, maintaining a 98% client retention rate and 90% satisfaction.

Rated 4.9/5 on Clutch, we operate under externally audited ISO 9001 and ISO 27001 standards, ensuring top-tier code quality, reliable architecture, and complete data safety.

We protect your enterprise assets through strict adherence to global compliance standards, including GDPR, CCPA, and HIPAA, ensuring full infrastructure control and privacy.

Our customer-first culture focuses on long-term value measured in measurable business ROI rather than billed hours, backed by flexible engagement models and continuous support.

We maintain clear communication with regular progress updates and predictable milestones, driving faster time-to-market while optimizing development costs without sacrificing quality

Powered by 100+ specialized developers with 15 years of industry experience, our team rapidly scales web, mobile, cloud, and data engineering systems to match your growth.
Quick answers to the questions we hear most from retailers, brands and agencies planning a new or upgraded online store.
An ecommerce development service is the end-to-end work of planning, designing, building, integrating and maintaining an online store. It usually includes platform selection, UX and UI design, theme or custom development, payment and shipping setup, integrations with ERP and CRM systems, data migration, testing, launch and ongoing support.
Cost depends on the platform, design complexity, number of integrations and custom features. A theme-based Shopify store costs far less than a custom headless or B2B build. ONEXT offers fixed price and time and material models, and our Vietnam-based team helps clients save significantly compared with hiring in-house developers in Australia, Hong Kong or the UK. Contact us for a free, itemised estimate.
A theme-based Shopify or WooCommerce store typically takes 4 to 8 weeks. Custom, headless, B2B or marketplace projects usually take 3 to 6 months, depending on integrations, data migration and the number of markets you sell in.
There is no single best platform. Shopify and Shopify Plus suit most direct-to-consumer brands that want speed and a rich app ecosystem. Adobe Commerce fits complex catalogues and B2B. WooCommerce works well for content-led stores on WordPress, BigCommerce for API-first mid-market sellers, and headless builds for brands that need maximum performance and design freedom.
Headless commerce decouples the storefront from the commerce backend and connects them through APIs. It delivers faster pages and more flexibility across channels, but costs more to build and maintain. It is a good fit for high-traffic brands, content-rich experiences or multi-channel selling, while smaller stores are often better served by a well-optimised Shopify theme.
Agentic commerce is shopping carried out with the help of AI agents in tools such as ChatGPT, Gemini, Google AI Mode and Microsoft Copilot. To be discovered and recommended, your store needs real-time product feeds, accurate Product and Offer structured data, structured reviews, clear shipping and returns data, and, on Shopify, enrolment in Agentic Storefronts.
Yes. We integrate ecommerce platforms with ERP systems such as Odoo, Microsoft Dynamics and NetSuite, CRM tools such as HubSpot and Zoho, and POS, PIM, 3PL, accounting and payment systems, using native connectors, middleware or custom APIs.
Yes. Our support plans include monitoring, security updates, platform upgrades, bug fixes, performance and Core Web Vitals optimisation, conversion rate optimisation and new feature development, with response times agreed in an SLA.
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