eCommerce Platform Development Services | W4

Build, Scale & Optimize Your Online Business

At W4, we specialize in end-to-end eCommerce platform development, helping businesses create high-performance, feature-rich online stores. Whether you need a custom-built eCommerce website, a scalable marketplace, or cutting-edge AI-powered solutions, our expert team delivers tailored solutions that drive conversions, enhance user experience, and future-proof your online business.

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Custom eCommerce Development

Your business is unique, and your online store should be too. We develop tailor-made eCommerce platforms that fit your brand’s needs, delivering a seamless shopping experience across web and mobile. Whether you need a headless eCommerce solution for maximum flexibility or a custom-built platform designed for growth, we ensure every element is optimized for conversion.

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Custom eCommerce Website Development

Headless eCommerce Solutions

Whether you're building on Shopify or Magento, we create high-performance online stores that are optimized for scalability, user experience, and conversions Using platforms like Medusa, we enable seamless integration with existing PIMs, ERPs, or custom databases, allowing you to manage products, content, and operations independently while delivering a fast, modern shopping experience.
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Platform-Specific Development



Already working with Shopify, Magento, WooCommerce, BigCommerce, or OpenCart? We help businesses customize, enhance, and scale their stores with custom themes, app development, and API integrations. For businesses looking for more control, we also specialize in custom CMS-based eCommerce development on platforms like Strapi and Contentful.

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Custom themes, API integrations, and storefront development. Scalable and feature-rich eCommerce solutions with the option to self-host for complete control over your store’s infrastructure, security, and performance.
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UI/UX & Performance Optimization

A slow, clunky website kills conversions. We focus on speed, user experience, and conversion optimization, ensuring your store loads fast, looks stunning, and turns visitors into customers. Our team applies A/B testing, Core Web Vitals improvements, and data-driven UX strategies to maximize engagement and sales.

Integrations & Automation


Modern eCommerce demands seamless automation. We integrate payment gateways (PayPal, Stripe, Razorpay, and more), third-party tools (CRM, ERP, inventory, and shipping solutions), and AI-driven chatbots and product recommendations to streamline operations and boost revenue.

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Payment Gateway Integration

We ensure seamless and secure payment processing by integrating the right payment gateways for your market. For businesses in Switzerland, we support Payrexx and other payment providers that enable Twint, a widely used mobile payment solution. Whether you need PayPal, Stripe, or a Switzerland-specific payment gateway, we implement fast, reliable, and compliant payment solutions tailored to your business needs.
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CMS & DAM Integration for eCommerce

We connect eCommerce platforms with CMS or DAM systems like Strapi, Webflow, or Contentful to create a single source of truth for product data. This eliminates duplication, enriches product information, and ensures seamless content distribution, especially in headless eCommerce environments.
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Third-Party API Integrations

Connect CRMs, ERPs, inventory, and shipping solutions.
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AI & Chatbot Integration

Automate customer support and personalize recommendations.

Scalability & Performance Enhancements


Whether you’re handling high traffic volumes or preparing for rapid growth, we optimize your store for peak performance.We deliver scalable, secure eCommerce platforms on global and Swiss-based cloud infrastructure, ensuring high performance and compliance with local regulations.. We implement microservices architecture, load balancing, and caching to ensure smooth operations.

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Cloud-Based eCommerce Solutions

We build scalable, secure, and high-performance eCommerce platforms powered by flexible cloud infrastructure.
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Microservices Architecture Development

Scalable and future-proof platforms.
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Load Balancing & Caching

Enhanced performance for high-traffic websites.
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Marketing & SEO for eCommerce

Getting traffic is one thing—converting it into sales is another. We optimize your online store for higher search rankings, personalized shopping experiences, and AI-powered product recommendations.

From SEO and paid ads to retargeting and gamified marketing strategies, we drive measurable growth and customer engagement.

 

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AI & Emerging Technologies

eCommerce is evolving, and we help businesses stay ahead by connecting data, systems, and customer experiences. We specialize in seamless integrations that bring together product data, AI-driven automation, and advanced front-end experiences tailored to your needs.

As Zakeke partners, we have experience with 3D product configurators, and intelligent automation ensuring your eCommerce ecosystem remains fully connected.

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Ongoing Maintenance & Support

We don’t just build your store—we keep it running at peak performance. Our team provides regular updates, bug fixes and security monitoring to ensure your business never misses a sale.

Let’s Build Your eCommerce Success Story

Your online store is your biggest sales channel—let’s make it work harder for you. Whether you’re launching, scaling, or optimizing, we bring the expertise to drive results fast.

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IHRE ANSPRECHPARTNERIN

Sarah Wilhelm
Sarah Wilhelm
CEO
+41 44 562 49 39
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