Enterprise commerce transformation
Modernising a high-volume commerce estate without interrupting the revenue, operational and fulfilment systems that depended on it.
- Role
- Architecture, senior engineering, commerce systems, infrastructure and technical leadership
- Engagement
- Multi-year engagement
The central challenge
Turn a business-critical legacy commerce platform into a faster, safer and more adaptable operating system while live trading continued.
Constraints
- Deep ERP, marketplace, payment and warehouse dependencies
- High transaction volume with little tolerance for downtime
- Years of accumulated business rules and operational edge cases
- Sensitive commercial and customer data
Scope
- Technical strategy
- Platform modernisation
- Commerce engineering
- Cloud architecture
- Performance and reliability
Approved outcomes
The challenge
The platform connected product data, pricing, stock, payments, fulfilment, customer service and third-party marketplaces. Replacing everything at once would have created unacceptable commercial risk, while leaving it untouched would have limited growth.
Pius modernised the platform in stages while preserving the business knowledge built into years of production behaviour.
A modernisation programme, not a rewrite
The work combined architecture, performance engineering, data migration, payment-risk controls, marketplace automation and operational tooling. We introduced changes in stages so the business could benefit early and keep trading throughout.
We prioritised revenue-critical paths, security and observability. Lower-risk structural improvements followed once the platform could be measured and trusted.
Engineering for commercial reality
The platform connected to Microsoft Dynamics NAV, multiple marketplaces, search services, payment gateways, fulfilment processes and internal tools. Pius treated those integrations as products in their own right: documented contracts, observable failures, deliberate retry behaviour and clear ownership.
That discipline turned an opaque legacy estate into a system teams could operate, improve and reason about.
The outcome
Approved results are presented anonymously because the engagement includes commercially sensitive enterprise work. They show revenue growth, lower fraud exposure and production reliability achieved without destabilising live operations.
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