Case Study: Financial Services Infrastructure Modernisation

The Situation

A regulated financial institution was facing a compliance deadline for infrastructure modernisation. Its legacy server estate, network architecture, and cybersecurity controls did not meet updated regulatory requirements. The organisation had 11 months to complete a full infrastructure refresh across its primary and disaster recovery sites, upgrade cybersecurity controls, migrate critical applications, and demonstrate compliance to the regulator.

The programme involved sensitive customer data, business critical trading systems, and regulatory reporting platforms that could not tolerate downtime. Previous attempts to scope the programme internally had stalled due to the complexity of dependencies between infrastructure, applications, and compliance requirements.

What Elisabeth Did

Elisabeth was engaged as the independent programme manager to deliver the modernisation within the regulatory timeline. She started with a comprehensive dependency mapping exercise that identified every application, data flow, and integration point that would be affected by the infrastructure changes.

She structured the programme into three parallel workstreams: infrastructure (server and network), cybersecurity (controls and monitoring), and application migration (testing and cutover). Each workstream had its own delivery lead, but Elisabeth coordinated dependencies and sequencing across all three through a master programme plan.

She implemented a rigorous change control process that ensured every infrastructure change was tested, approved, and reversible before execution. She coordinated weekend and overnight migration windows for business critical systems, with full rollback plans tested in advance.

The Results

• Full regulatory compliance achieved six weeks before the deadline
• Zero unplanned downtime during the entire migration programme
• All critical applications migrated and validated
• Cybersecurity controls upgraded to meet regulatory requirements
• Disaster recovery site fully modernised and tested
• Programme delivered within 3 percent of the approved budget