Case Studies
NBFC & Financial Services Cloud Migration Kubernetes DevOps Observability

From On-Premise to Cloud-Native — Zero-Downtime Migration & DevOps Modernisation for a Tier-1 NBFC

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.

Financial services cloud migration
Industry
NBFC & Financial Services
Services
Cloud Migration, Kubernetes, DevOps, Observability
Location
India
The Challenge

Legacy infrastructure holding back a growing financial business

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.

Client Snapshot
Type Tier-1 Non-Banking Financial Company
Industry Financial Services
Scale Large loan book, customer-facing digital products
Transactions Thousands daily
Challenge Legacy infrastructure & siloed delivery
Business Challenges

What was holding them back

01
Ageing Infrastructure, Rising Costs

On-premise infrastructure approaching end-of-life. Maintenance costs increasing, scaling capacity required weeks of procurement lead time, and hardware failure risk was growing.

02
Siloed Teams, Manual Releases

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.

03
No Production Observability

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.

Our Approach

How we solved it

01
Migration Strategy & Risk Planning

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.

02
Zero-Downtime Migration

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.

03
Kubernetes Delivery Platform

Built a Kubernetes-native platform: shared CI/CD pipelines, Helm-managed workloads, GitOps-driven deployments, and environment promotion gates from dev through production.

04
Full Observability from Day One

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 Outcomes

Results that proved the approach

40%
Infrastructure Cost Reduction
3×
Faster Release Cycles
0
Unplanned Downtime

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.

Business Impact

What changed for the organisation

Zero Customer Impact During Migration

Not a single customer-facing service experienced unplanned downtime throughout the migration programme.

SLO-Driven Operations

The team moved from reactive firefighting to proactive SLO management — knowing about issues before customers do.

Release Velocity Transformed

From bi-weekly releases to multiple deploys per day. Engineering effort shifted from release co-ordination to product development.

Cost Freed for Innovation

Infrastructure cost savings funded the next phase of product investment, creating a virtuous cycle of modernisation.

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