Case studies

PTSB Bank

Cloud modernisation & trusted data hub

Modernisation strategy, data foundations, and architecture governance for regulated delivery.

What we did

• Defined modernisation strategy and transition approach from legacy to cloud-native architecture.
• Delivered data and AI strategy to reduce fragmentation and enable AI-driven services.
• Set integration and engineering standards for event-driven services and observability.

Outcomes

• Clear sequencing and governance to mobilise delivery across multiple domains.
• Improved readiness for regulated programmes and operational resilience.

Bank of Ireland

SEPA Instant architecture

End-to-end solution design and transition approach aligned to scheme and regulatory timelines.

What we did

• Shaped target-state integration architecture across channels, core services, and back-office.
• Defined NFR guardrails for security, resilience, performance, and monitoring.
• Guided delivery sequencing and dependency decisions to reduce programme risk.

Outcomes

• Architecture aligned to real-time processing, reconciliation, and exception handling.
• Operational readiness embedded into design and delivery.

Mastercard

Real-time payments platform

High-scale platform design and multi-geography deployment patterns.

What we did

• Architected real-time payments connecting 50+ banks with high throughput and low latency.
• Designed flexible integration patterns across MQ, APIs, and streaming.
• Established governance and security standards for regulated environments.

Outcomes

• Scalable deployment approach with reduced customisation effort.
• Architecture supporting ISO 20022 and SWIFT message processing.

HSBC

Cloud migration & digital banking services

Cloud-native architectures enabling real-time account services and integration to payments ecosystems.

What we did

• Architected migration patterns from legacy components to cloud-native services.
• Delivered real-time account information services with strong availability and performance requirements.
• Designed integration patterns to support ISO 20022 and straight-through processing.

Outcomes

• Improved integration and reduced reconciliation delays through architecture changes.
• Clear governance for resilient and compliant delivery.

Barclays

PSD2 / open banking

API platform strategy, security controls, and AI/ML-enabled components within regulated constraints.

What we did

• Defined API strategy and governance for secure third-party access.
• Designed consent/authentication patterns and delivery standards.
• Supported architecture for fraud detection components within core flows.

Outcomes

• Stronger control framework for regulated API delivery.
• Improved alignment between compliance requirements and engineering execution.

Lloyds

Payments transformation & resilience

Resilience and modernisation direction for a critical payments estate.

What we did

• Defined modular, API-driven patterns to reduce coupling across back-office systems.
• Developed a cloud-ready roadmap for a complex payments ecosystem.
• Set resilience guardrails aligned to high availability and DR expectations.

Outcomes

• Simplified architectural landscape and improved future cloud readiness.
• Clear delivery direction for critical platform resilience.

Vodafone / Three UK

Telecom & IoT platform modernisation

Cloud and streaming architectures for global-scale platforms and high-volume analytics.

What we did

• Defined cloud strategy and platform engineering standards for scale and reliability.
• Designed streaming-first architectures for real-time metrics and insights.
• Supported cost optimisation direction and operational governance.

Outcomes

• Improved scalability and delivery repeatability across platform programmes.
• Cost and operational efficiency improvements through engineering standards.

Transaction screening (GSS)

Regulated screening and controls platform

Architecture patterns and governance for screening, controls, and partner onboarding.

What we did

• Defined target-state architecture, NFRs, and delivery guardrails for high-throughput processing.
• Designed integration strategy and API-based connectivity patterns.
• Established compliance-oriented governance and evidence practices.

Outcomes

• Improved readiness for assurance and partner onboarding.
• Operational controls embedded into architecture and delivery.