Architecture Domains
Domains represented through recurring responsibilities and decision patterns across programmes.
Cloud governance & landing zones
Enterprise scale- Enforceable guardrails across multi-account and multi-subscription estates — Azure and AWS at sovereign and regulated scale.
- Identity-first controls for network segmentation, encryption, and logging-by-default across hybrid and multi-cloud environments.
- Cloud Adoption Framework delivery — platform autonomy and regulatory assurance trade-offs.
- Standard patterns for onboarding regulated workloads and maintaining audit survivability under IRAP, ASD Essential 8, and SOCI Act obligations.
Identity-first and zero trust security architecture
Control-plane design- Trust boundary definition, policy hierarchy, and least-privilege operating model across enterprise and OT environments.
- Authentication and authorisation strategy aligned to privileged access workflows in safety-adjacent and regulated contexts.
- Zero trust architecture patterns per NIST 800-207 — applied across cloud, on-premises, and OT/IT convergence boundaries.
- Assurance mechanisms for critical national infrastructure under NIST CSF, ISM, and NESA IAS frameworks.
Resilience, availability & failure-domain design
Systemic risk- Failure-mode analysis and bounded-failure architecture across critical services and national-scale infrastructure.
- Design for recoverability — backup integrity, restore time, dependency discipline, and operational continuity under uncertainty.
- Architectural patterns supporting continuity for safety-adjacent operations where availability is a public safety obligation.
- Trade-offs across cost, complexity, and operational survivability in regulated and critical infrastructure contexts.
Critical infrastructure & safety-adjacent systems
Regulated operations- Architectural controls shaped by safety constraints and operational volatility across energy, utilities, and defence sectors.
- Segmentation patterns supporting containment, assured degradation, and OT/IT boundary enforcement.
- Assurance of telemetry, incident response pathways, and governance enforcement under SOCI Act and critical infrastructure obligations.
- Risk framing suitable for executive and regulator-facing contexts — NIST CSF, ASD Essential 8, IRAP, and IEC 62443 aligned.
AI security & emerging threat architecture
Forward-looking- Security architecture for AI/ML systems — model endpoint protection, vector database security, and AI pipeline threat modelling.
- Governance frameworks for AI-driven operational technology — securing agent-based systems in critical infrastructure contexts.
- Post-quantum cryptography migration planning for critical infrastructure — NIST FIPS 203/204/205 aligned architecture.
- Adversarial AI threat modelling and defensive architecture for OT environments integrating machine learning systems.
OT/SCADA security & Grid Intelligence architecture
Specialist depth- Agent-based intelligence architecture for OT field networks — securing AI/ML-driven anomaly detection integrated with Azure/Edge cloud infrastructure.
- Security zoning, network segmentation, and OT/IT boundary controls for national-scale energy market and grid operations systems.
- IEC 62443 zone and conduit design, Purdue model assessment, and cloud-connected OT architecture patterns for distributed field networks.
- Threat modelling and architectural controls for SCADA, EMS, DCS, and AMI environments under operational volatility and real-time availability constraints.