Proven Engineering
Case Studies
A selection of projects delivered by the Leigh Services team — from large-scale infrastructure migrations to data platform engineering and compliance programmes.
PCI DSS Compliance Programme
Insurance · 300+ users · Multi-site
Owned and maintained a PCI DSS compliance programme across a four-office WAN infrastructure for eight years. Delivered a full data centre migration to Wales, WAN amalgamation and Mapfre Global WAN integration — while maintaining continuous compliance across the cardholder data environment.
Outcome: Continuous PCI DSS compliance maintained across an 8-year tenure. Full data centre migration completed with zero compliance gap.
View Project Scope arrow_forwardSAS to GCP Data Platform Migration
Luxury Retail (Swarovski) · International · Zurich
Led the migration of a complex, undocumented legacy SAS analytics environment to Google Cloud Platform for a global luxury retailer. Delivered within 9 months, reducing pipeline failure rates from ~25% to 2% and cutting processing time by over 50%.
Outcome: €1m in annual cost savings. Failure rate reduced from 25% to 2%. Processing time cut by 50%+.
View Project Scope arrow_forwardInfrastructure Automation & PCI Remediation
Contact Centre (Ventrica) · Fixed Deadline
Engaged to deliver a full PCI DSS compliance programme within a non-negotiable year-end deadline. Delivered Juniper firewall upgrades, patch management, Active Directory hardening and Exchange Server 2013 security hardening — with PowerShell automation driving consistency across the remediation effort.
Outcome: PCI DSS compliance achieved by December 31st deadline. All remediation items closed.
View Project Scope arrow_forwardMicrosoft 365 Migration & Virtualisation
Retail (Carpetright) · 200+ stores · UK-wide
Delivered a Microsoft 365 migration and VMware virtualisation programme for a UK-wide retail group, covering messaging platforms, change management and ongoing IT infrastructure support. Managed transition during an organisationally complex period.
Outcome: Successful M365 migration delivered. Virtualisation estate stabilised and handed over.
View Project Scope arrow_forwardFINREP Regulatory Reporting Programme
Banking (Lloyds) · Regulatory · Halifax
Lead developer on a FINREP (Financial Reporting) regulatory programme within a major UK bank — bridging project management and development to deliver a complex regulatory data solution. Also contributed to a Collections & Recoveries migration applying Agile principles within a Waterfall-governed environment.
Outcome: FINREP solution delivered to regulatory deadline. Agile delivery model introduced within a traditional Waterfall programme.
View Project Scope arrow_forwardVMware & Exchange Cloud Migration
Print Industry (Solopress) · Southend-on-Sea
Implemented a Dell EMC and VMware 6.5 virtual environment from scratch, migrated from GFI Kerio Connect to Exchange 365, and integrated with Azure Active Directory — delivering a modern, cloud-connected infrastructure for a growing print business.
Outcome: Full virtualisation completed. Exchange 365 live with Azure AD integration. Infrastructure modernised within a single engagement.
View Project Scope arrow_forwardOperational Excellence Metrics
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