Mountain Warehouse embraces composable ecommerce with BigCommerce

Commerce has announced that Mountain Warehouse, a global outdoor clothing and equipment retailer, has launched a new composable ecommerce platform powered by BigCommerce. The platform replaces a decade-old custom-built system and is intended to support scaling, reduce operational complexity, and enable further development.

Established in 1997, Mountain Warehouse operates more than 400 stores worldwide and serves over 5 million customers across markets including the UK, US, Canada, Europe, Australia, and New Zealand. The company designs and produces most of its products in-house, focusing on affordable outdoor apparel.

The company’s previous ecommerce platform required significant development resources to maintain its infrastructure and presented limitations in areas such as speed to market, security, and the adoption of newer technologies.

The composable, headless architecture built on BigCommerce is designed to allow Mountain Warehouse to:

• Accelerate time-to-market for new features and initiatives
• Reduce reliance on maintaining custom core systems
• Improve platform security, reliability, and compliance
• Enable integration with third-party and in-house solutions

The ecommerce platform uses a composable technology stack that includes BigCommerce as the core commerce engine, a Catalyst frontend deployed on Vercel, Contentful for content management, Algolia for search and personalisation, and payment services including Stripe, PayPal, Apple Pay, and Google Pay. Dotdigital is used for marketing automation. The architecture also incorporates custom middleware to manage inventory, pricing, customer data, and shipping.

The implementation includes capabilities aligned with Mountain Warehouse’s business requirements, including:

• Checkout functionality supporting gift cards and multiple payment methods
• Multi-location inventory management and click-and-collect
• Order handling such as split shipments and marketplace workflows
• Address lookup and validation integrations
• Support for bundled products and digital gift cards

The platform supports ongoing updates to the ecommerce experience and scaling as demand changes. The composable approach aims to allow internal teams to focus on developing additional features while using third-party solutions for core commerce functions.