A leading non-banking financial company moved from ageing on-premise infrastructure to a cloud-native delivery platform — without a single hour of unplanned downtime.
The NBFC's infrastructure had served its purpose for years, but the signs of strain were unmistakable. Hardware refresh cycles were unpredictable. Scaling capacity required weeks of procurement lead time. And the engineering teams, operating in silos with no shared delivery platform, were doing releases by hand — every deployment a coordination exercise, every go-live a calculated risk. Production issues were typically reported by customers before any internal monitoring caught them. The organisation needed to modernise — but couldn't afford disruption to the business while it did so. The migration had to be zero-downtime, the platform had to be ready from day one, and observability had to be embedded before a single workload went live.
On-premise infrastructure approaching end-of-life. Maintenance costs increasing, scaling capacity required weeks of procurement lead time, and hardware failure risk was growing.
No shared delivery platform. Each team ran its own release process, requiring manual coordination and creating high human-error risk. Release cycles measured in weeks.
Incidents were reported by customers before engineering teams were aware. No metrics stack, no distributed tracing, no structured log aggregation. Diagnosis was slow and guesswork-heavy.
Assessed all applications for cloud readiness, prioritised by business criticality, and built a phased migration plan with full rollback capability for every workload. No big-bang cutovers — ever.
Migrated business-critical applications using blue-green deployment strategies, database replication with live sync, and traffic cutover with instant rollback capability. Every migration rehearsed before execution.
Built a Kubernetes-native platform: shared CI/CD pipelines, Helm-managed workloads, GitOps-driven deployments, and environment promotion gates from dev through production.
Deployed Prometheus + Grafana for metrics and SLO dashboards, OpenTelemetry for distributed tracing, and centralised log aggregation with automated alerting — before each workload went live.
The engineering organisation went from planning releases days in advance to shipping multiple times per day. Incidents that previously went undetected until customers called are now surfaced within minutes by automated SLO alerts. The 40% infrastructure cost reduction funded the next phase of product investment.
Not a single customer-facing service experienced unplanned downtime throughout the migration programme.
The team moved from reactive firefighting to proactive SLO management — knowing about issues before customers do.
From bi-weekly releases to multiple deploys per day. Engineering effort shifted from release co-ordination to product development.
Infrastructure cost savings funded the next phase of product investment, creating a virtuous cycle of modernisation.
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