Infrastructure Transformation for a Leading UK Bank
Overview.
The client is a major UK retail and commercial bank serving over 14 million customers. As a regulated financial institution, the bank requires a robust, secure, and highly available IT infrastructure to support critical banking operations and customer-facing services.
The client needed a trusted partner to modernize its infrastructure across a broad and complex technology landscape. The objectives included enhancing network security, improving operational resilience, and automating patch and maintenance cycles, while maintaining compliance with strict financial and regulatory standards.
Solution
Coforge was selected as a strategic infrastructure services partner to drive modernization and efficiency across the bank’s IT operations. Key initiatives included:
Modernizing Network Infrastructure: Coforge migrated VLAN gateways to an upgraded infrastructure (OHE3), replaced outdated firewalls, and modernized legacy load balancers. This significantly enhanced network segmentation, security, and performance, reducing the network risk ratio from 8:1 to 1:1.
Patch and Maintenance Automation: Coforge implemented a robust patch management framework, increasing OS patch compliance from under 30% to 70%. Over 1 million vulnerabilities were remediated, with daily compliance reporting established to ensure proactive oversight. Additionally, 30% of unsupported infrastructure was decommissioned to streamline and accelerate patch cycles.
Operational Resilience and Continuity: Coforge delivered integrated disaster recovery with 99.99% availability and executed structured exit management through comprehensive documentation, knowledge transfer protocols, and ITIL-aligned change management, ensuring smooth operations and uninterrupted service delivery.
The Impact
1 million vulnerabilities mitigated in just 7 months, strengthening the client’s security posture
85% reduction in production incidents, leading to enhanced system stability
70% OS patch compliance, up from under 30%, through automated patching of ~10,500 servers per month
Zero unplanned downtime, ensuring business continuity and uninterrupted customer service
Seamless management of 750 server instances, 480 servers, 210 microservices, 181 VMs, and complex workloads including 200+ database tables, 100+ microservices, 46 Kafka services, and 31 CDC streaming jobs
This engagement underscores Coforge’s ability to manage critical infrastructure for financial institutions at scale. Combining automation, modernization, and resilience-focused design, Coforge continues delivering secure, scalable, and compliant IT services for highly regulated banking environments.
