Skip to main content

Nationwide Cuts Cloud Migration Time in Half

How Nationwide created a faster path to new services.

Client

Nationwide Building Society

Industry

Financial Services

Topic

Modernization & Engineering

Partner

AWS

Intro

Nationwide serves millions of members in the United Kingdom who expect banking to keep pace with the rest of their digital lives. But delivering new services quickly was difficult when critical applications weren’t keeping pace with modern needs. Nationwide needed a cloud foundation that could support faster change without compromising the security and resilience expected of a major British financial institution.

Nationwide worked with Publicis Sapient to move key applications to Amazon Web Services and build reusable cloud patterns for future migrations and new customer services.

The Problem

Although Nationwide’s Engage and Originate (E&O) journeys were already hosted on a tactical cloud solution, the team wanted to migrate these journeys to the Cloud Center of Excellence — Nationwide’s resilient, secure and quick-to-market enterprise cloud platform.

The goal? To bring new products and services to market quickly, improve the overall customer experience and reduce the time and cost required to build and deploy new journeys.

The Solution

To achieve their vision, Nationwide partnered with Publicis Sapient to migrate their digital journeys to the Cloud Center of Excellence. We built a containerized platform on Amazon Web Services (AWS) to leverage the power of the cloud and integrate the platform with a range of strategic tools and technologies — including shared services and security controls.

We followed a phased approach to adopting new tools, building the platform and migrating the journeys. Through this we were able to work closely with the E&O team to build a platform that met their requirements, ensure a successful migration and create minimal disruption to the business and their customers.

The Impact

We migrated the journeys to the new platform with zero downtime, allowing Nationwide to continue to serve their customers without disruption. And by reducing the migration timeline by 50 percent%, we allowed the E&O team to bring new products and services to the cloud more quickly, improving the overall customer experience.

The platform enables new journeys to leverage reusable components, keeping costs down, and by providing the right documentation, knowledge transfer, templates for onboarding and governance models, we were able to help Nationwide’s colleagues hit the ground running with a smooth transition.

Our Partner

This application is built on NDAP (Nationwide Digital Accelerator Platform) which provides a cloud-native, containerised, elastic, resilient and secure infrastructure powered by Amazon Web Services. The cloud platform built by Publicis Sapient adopts code first (Infrastructure as code), automation first & security first principles providing a consistent and repeatable infrastructure that delivers improved efficiencies, highest standard security and enhanced audit trails. Some of the integral AWS services and other technologies that NDAP leverages are AWS CloudFront, EC2, RDS, EKS, WAF, CloudTrail etc. along with Terraform, Helm, amongst many others.

"

Publicis Sapient took a methodical and well-structured eight step approach, clearly demonstrating the insight gleaned from other client projects for our benefit. They were proactive and attacked each area with a problem-solving mindset and a keen desire to find a resolution that didn’t just solve for this migration, but for all that followed — a real desire to do the right thing in the right way.

"

— Charlotte Phelps

Delivery Lead, Nationwide Building Society.

Meet our author

Andrew Cordes

Executive Client Partner, Financial Services

Related reading

  • Customer Story Global Restaurant Speeds Software Delivery with QA Automation August 05, 2026
  • Customer Story Coppel Modernizes eCommerce for Millions of Customers July 24, 2026
  • Customer Story Global Financial Services Firm Cuts Incident Backlog 10x with AI Agents July 14, 2026