Zero downtime. 35% faster transactions. Banking applications on AWS.
Kitsilano Technologies, an Advanced AWS Partner, executed Diamond Trust Bank's end-to-end cloud migration, transitioning banking infrastructure to a secure, scalable AWS environment without interrupting a single transaction.
The Institution
Eight decades of banking. A new infrastructure.
Diamond Trust Bank is a leading regional bank headquartered in Kenya with a presence across East Africa, serving millions of customers in both retail and corporate segments. Established in 1946, DTB operates across Kenya, Tanzania, Uganda, and Burundi with a track record built on stability, trust, and continuous innovation.
As DTB's regional footprint and transaction volumes grew, the bank made a strategic decision to modernise its banking infrastructure, moving to a secure, scalable AWS environment capable of supporting rapid digital innovation, evolving compliance requirements, and the always-on expectations of modern banking customers.
In Their Words
“Kitsilano has the experience in the financial industry; they understand not only the bottlenecks but also the challenges of transformation, whether it's technology, change management, or the people aspect. I would recommend Kitsilano to all my colleagues in the industry.”
Jimmie Mwangi
Chief Information and Digital Officer, Diamond Trust Bank
The Challenge
Legacy infrastructure under pressure
DTB's aging on-premises systems struggled to scale with growing transaction volumes and evolving regulatory requirements. Service latency during peak periods, delayed digital feature rollouts, and high maintenance overheads were diverting IT resources away from innovation.
Performance bottlenecks during peak transaction periods
Compliance risk from inflexible legacy architecture
The Approach
Phased hybrid migration, zero downtime
Kitsilano designed a four-phase AWS migration tailored to the banking sector: Discovery and Readiness to map all systems and dependencies; Mobilize to establish governance and security frameworks; Migrate using a hybrid parallel run with tested rollback strategies; and Modernize to build the cloud-native foundation for what comes next.
Legacy and cloud environments ran in parallel throughout
Real-time monitoring and rollback strategies at every stage
The Results
Measurable gains from day one
The migration delivered measurable operational and financial improvements across DTB's regional footprint. Transaction speeds improved, costs fell, and the bank's NPS rose 18 points in the first quarter post-migration, driven by faster services and new digital capabilities.
35% faster transaction processing from day one
Zero downtime across the entire migration
Results & Benefits
Substantial operational and financial improvements.
Transaction Speed
35% improvement in transaction processing times from day one of go-live.
Time to Market
40% faster rollout of new digital services and product features.
Infrastructure Costs
20% reduction in infrastructure management costs, freeing budget for innovation.
IT Incidents
25% drop in IT incidents, enabling teams to focus on new capabilities.
Customer NPS
+18 points in the first quarter post-migration, driven by faster mobile performance and new features.
Zero Downtime
Migration completed with no interruption to banking operations or customer services.
The DTB Story
Hear from Diamond Trust Bank directly
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