--- title: E-commerce Development | Software Development | Claritas One description: E-commerce development — Shopify, commercetools, Spryker and custom headless stacks with CRO-informed storefronts and conversion-first checkout. url: https://claritasone.com/services/software-development/ecommerce-development canonical: https://claritasone.com/services/software-development/ecommerce-development kind: service source: https://claritasone.com/services/software-development/ecommerce-development author: Claritas One datePublished: 2016-01-01 dateModified: 2026-04-18 updated: 2026-04-18 publisher: Claritas One --- # Enterprise E-commerce Development *Services / Software Development* > We design and engineer commerce platforms capable of sustaining peak trading volumes that would overwhelm conventional implementations — Black Friday throughput, international expansion, and B2B catalogue complexity included. Our headless commerce architectures decouple your storefront from backend constraints, enabling your merchandising team to iterate at market speed without engineering bottlenecks. Every platform we build is instrumented to optimise the metrics that matter most to your CFO: average order value, checkout conversion rate, and revenue per session. [Home](https://claritasone.com/) › [Services](https://claritasone.com/services) › [Software Development](https://claritasone.com/services/software-development) › **E-commerce Development** ## Overview The difference between a commerce platform that converts at 3% and one that converts at 5% on the same traffic volume is pure revenue — and at enterprise scale, that gap is measured in tens of millions annually. Claritas commerce engineers bring deep expertise in headless architecture, checkout psychology, and the performance characteristics of global CDN delivery to bear on every engagement. We have delivered platforms on Shopify Plus, Medusa, and fully custom Node.js backends serving markets across 40 countries, with multi-currency, multi-language, and localised tax and compliance requirements handled natively. Our post-launch optimisation practice uses A/B testing and session analytics to systematically close the gap between your current conversion rate and best-in-class benchmarks. ## Our Approach ### 1. Commerce Architecture Strategy We assess your catalogue complexity, order volume projections, integration requirements (ERP, WMS, PIM), and international expansion roadmap to recommend the optimal commerce architecture — monolithic, headless, or composable — with a total cost of ownership model over a five-year horizon. ### 2. Storefront Design & Conversion Engineering Every UI decision is informed by conversion rate data from comparable commerce verticals. We design checkout flows, product detail pages, and category navigation with documented conversion hypotheses that become the basis for post-launch A/B testing. ### 3. Backend Integration & Data Architecture Commerce data flows are integrated with your ERP (SAP, Oracle, NetSuite), warehouse management system, and marketing stack. Real-time inventory synchronisation and order management workflows are designed to eliminate the overselling and fulfilment errors that erode customer lifetime value. ### 4. Performance & Scalability Certification Load testing simulates your peak trading scenario — including flash sale spikes — before go-live. Auto-scaling policies are configured and validated to maintain sub-200ms response times at 10× normal traffic without manual intervention. ### 5. Conversion Optimisation Programme The first six months post-launch include a structured CRO programme: session recording analysis, funnel drop-off investigation, and a pipeline of A/B tests designed to systematically improve your core commerce KPIs with statistical rigour. ## Capabilities - Headless commerce architecture: Shopify Plus, Medusa, and custom Node.js platforms - Composable storefront development with Next.js and React - Payment orchestration: Stripe, Adyen, PayPal, and Buy Now Pay Later providers - Real-time ERP and WMS integration (SAP, Oracle, NetSuite) - Multi-currency, multi-language, and localised tax compliance - AI-powered search and personalised product recommendation engines - Subscription commerce and recurring billing infrastructure - Conversion rate optimisation: A/B testing, session analytics, and checkout auditing ## Outcomes | Metric | Value | | --- | --- | | Typical checkout conversion rate improvement post-engagement | **2–4%** | | Countries served across client commerce platforms | **22+** | | Storefront P95 response time under peak load | **<200ms** | | Traffic spike capacity without manual scaling intervention | **10×** | ## Next Step **Your commerce platform is your highest-leverage revenue asset.** Engage our commerce engineering practice to close the gap between your current conversion rate and best-in-class — and build the scalable foundation your growth ambitions require. → [Get a proposal](https://claritasone.com/get-a-proposal) · [Contact us](https://claritasone.com/contact) --- View the live page: About Claritas One: · Contact: · All pages: