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How Building societies can Optimise their IT Infrastructure (2025 Edition)

Introduction

If you’re running IT for a building society, you’re likely facing a trio of challenges: rising cloud costs, stringent compliance requirements, and inconsistent performance. While the public cloud has transformed IT, strategic cloud repatriation—bringing select workloads back to private or hybrid infrastructure—could be the most effective strategy for 2025.

This guide explores how repatriation can address these challenges while positioning your IT environment for greater efficiency, resilience, and control.

Why Repatriation Matters for IT Teams

1. Predictable Cost Control

Struggling with unpredictable cloud bills? Repatriation allows you to regain financial control by:

      • Consistent Expenditure: Moving workloads to private infrastructure enables predictable monthly costs.
      • Workload Optimisation: Core banking systems with steady resource requirements often achieve lower total cost of ownership (TCO) on dedicated hardware.
      • Avoiding Cloud Overheads: Eliminate premium charges for unused or underutilised services.

2. Simplified Compliance

Compliance with regulations such as GDPR and DORA can be complex in public cloud environments. Repatriation simplifies this by:

    • Data Sovereignty: Keeping sensitive data within your own environment ensures alignment with GDPR requirements for data residency.
    • Streamlined Audits: Private infrastructure makes audit trails more straightforward, with centralised control over logs and policies.
    • Reduced Third-Party Exposure: Mitigate risks associated with reliance on third-party providers and their shared responsibility models.

3. Enhanced Performance for Critical Systems

Certain workloads perform better with the deterministic performance of in-house infrastructure. Benefits include:

    • Faster Customer-Facing Applications: Reduce latency and improve responsiveness for high-traffic services.
    • Improved Transactional Workloads: Systems such as fraud detection or real-time payment processing benefit from optimised compute and storage performance.
    • Consistent Availability: Maintain reliability for always-on banking systems insulated from cloud contention issues.

How IT Teams Can Begin the Repatriation Journey

1. Identify Ideal Workloads

Select workloads based on criteria such as:

    • High Cloud Costs: Workloads with sustained resource requirements that make public cloud uneconomical.
    • Sensitive Data: Applications handling customer financial data or Personally Identifiable Information (PII).
    • Performance Bottlenecks: Workloads requiring low latency or high throughput.
2. Prepare Your Infrastructure

Ensure your IT environment is ready to handle repatriated workloads by:

    • Evaluating Private Cloud Solutions: Modernising with platforms for scalability and flexibility.
    • Ensuring Connectivity: Integrating with public cloud environments using hybrid solutions.
    • Implementing Orchestration Tools: Facilitating seamless operations between private and public clouds with Kubernetes or Nutanix Clusters.

3. Adopt a Hybrid Approach

Hybrid architectures provide flexibility by combining the strengths of private and public cloud environments:

    • Sensitive Workloads: Keep critical systems on-premises for control and compliance.
    • Scalable Applications: Use public cloud for workloads with fluctuating demand.
    • Unified Management: Centralise control using key tools.

Why Act Now

Repatriation is more than a financial decision—it’s a strategic move to:

    • Break Free from Vendor Lock-In: Regain autonomy over infrastructure and workload placement.
    • Simplify Regulatory Compliance: Meet evolving legal standards with greater ease and confidence.
    • Enhance System Performance: Deliver superior user experiences through optimised infrastructure.

2025 is fast approaching. Repatriation offers IT leaders, and teams, the chance to regain control of their infrastructure, costs, and compliance landscape.

Ready to explore your options? Let’s talk.