Core customer and enterprise platforms were running across fragmented, aging on-prem infrastructure with limited observability and inconsistent failover. Change windows were long, recovery was manual, and capacity planning was guesswork. The business wanted better availability during peak cycles, stronger business continuity, and lower total cost of ownership—without disrupting regulatory obligations or daily operations.

Lead an enterprise cloud migration and resilience uplift across priority platforms. Define a pragmatic roadmap that de-risks the move, keeps customer impact to zero, and proves commercial value. Build the right operating model (people, process, platforms), embed SRE/DevSecOps, and leave the business with measurable gains in uptime, recoverability, and run-costs.

• Established a portfolio roadmap with executive sponsorship, prioritising systems by business criticality, regulatory constraints, and cost-to-serve.

• Created a landing zone on AWS and Azure with guardrails for identity, network segmentation, encryption, logging, and backup/restore; set golden patterns for app migration (rehost, replatform, refactor) to avoid one-size-fits-all.

• Formed a cross-functional migration squad (platform, network, security, app teams) and weekly risk/benefits cadence with Finance and Operations to track value and mitigate service risk.

• Introduced SRE practices: SLOs/SLIs, error budgets, runbooks, chaos days, automated failover tests, and MTTR drills; embedded observability (logs, metrics, traces) and capacity autoscaling.

• Shifted change to CI/CD with progressive delivery (blue/green, canary), feature flags, and automated rollback; rehearsed DR in production-like environments until recovery was repeatable.

• Negotiated vendor contracts and implemented FinOps (rightsizing, reserved instances, license rationalisation), integrating cost telemetry into engineering dashboards so teams could see £ impact of design choices.

• Migrated 70% of targeted workloads to cloud within 12 months with zero customer-impacting outages during cutovers.

• Improved platform availability to >99.9% on enterprise systems and >99.99% on customer-facing payments journeys.

• Reduced mean-time-to-restore by 40% through automated recovery, health checks, and runbooked failover.

• Cut infrastructure and licensing costs by 20% via consolidation, rightsizing, and decommissioning of legacy assets.

• Increased deployment success to 98% and shortened release cycles by 45% through CI/CD and progressive delivery.

• Enabled capacity elasticity for peak events, eliminating prior freeze windows and improving customer experience.

• Digital Enablement

• Financial Services