Designing Secure, Resilient, AI-Ready Hybrid & Multi-Cloud Infrastructures
Real-world architectural evidence from large-scale transformation programs in regulated industries
I am an Enterprise Architect specializing in:
- Hybrid & multi-cloud strategies
- Network modernization & segmentation
- Zero Trust security & identity-driven access
- Cloud-native governance & workload hardening
- Data center optimization & migration
- Risk-informed decision frameworks
This is not a traditional code repository.
This is an Architectural Evidence Library a collection of sanitized, real-world case studies, decision rationales, patterns, and governance models drawn from complex enterprise transformations in healthcare, finance, public sector, and large distributed organizations.
- Hybrid & multi-cloud architecture blueprints (workload placement, data residency, resilience)
- Network modernization patterns (MPLS → SD-WAN, data center relocation & optimization)
- Zero Trust & security posture implementations (NAC, identity, SecOps, continuous protection)
- Cloud-native governance & hardening patterns (Kubernetes, policy-as-code, compliance alignment)
- Migration strategies, cutover approaches, risk models & operational designs
- Architecture decision records (ADRs) and lessons learned from production environments
Each repository or folder represents my most recent and relevant consulting engagements focused on why decisions were made, how trade-offs were handled, and what outcomes were achieved.
| Domain | Primary Focus areas |
|---|---|
| Hybrid & Multi-Cloud | Data residency, disaster recovery (RTO/RPO), workload placement, repatriation |
| Network Modernization | SD-WAN, segmentation, data center optimization & relocation, minimal-risk migration |
| Zero Trust Security | Identity as perimeter, NAC/ISE, continuous monitoring & remediation, SecOps |
| Cloud-Native Governance | Workload hardening, policy enforcement, compliance mapping, Kubernetes security |
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00-Architecture Principles
Enterprise Architecture principles for designing secure, resilient, AI-ready hybrid infrastructures across network, cloud, and security domains. -
01-Hybrid-Multi-Cloud-Blueprints
Patterns for regulated industries (healthcare & finance), secure workload distribution, data sovereignty, resilience, and zero-trust segmentation across on-premises and multiple clouds -
02-Network-Modernization
Large-scale MPLS-to-SD-WAN transformations, data center optimization & relocation methodologies, risk-mitigated cutover strategies -
03-Zero-Trust-Security
Practical application of zero-trust principles using Cisco ISE/NAC, identity driven micro-segmentation, endpoint protection & SecOps practices -
04-Cloud-Native-Governance
Cloud agnostic governance models, AKS / Kubernetes hardening, policy enforcement patterns, compliance alignment (CIS, regulatory frameworks)
All designs and case studies are shaped by these consistent principles:
- Security & Identity — Secure by Design, Identity as the new perimeter
- Operational Excellence — Observability-first, Network as Control Plane, Governance embedded early
- Architectural Flexibility — Cloud-agnostic patterns, strong resilience & reliability focus
- Future-readiness — Foundations prepared for AI/ML workloads and data-intensive services
Enterprise Architect with 20+ years of experience evolving complex network & security environments into secure, governable, and cloud-ready platforms.
Most recent focus areas include:
- Hybrid/multi-cloud transformations in regulated sectors
- SD-WAN & network modernization at scale
- Zero Trust program implementation
- Data center consolidation, optimization & relocation
- Cloud repatriation and hybrid disaster recovery strategies
- AI-ready infrastructure foundations
To show how enterprise architecture is practiced in reality — beyond slideware, beyond vendor demos, centered on:
- High-quality architectural decisions
- Risk understanding and mitigation
- Governance that survives production
- Trade-off navigation in complex, regulated environments
“Architecture is not what we deploy.
Architecture is how we decide.”
Open to interesting challenges in enterprise architecture, hybrid cloud strategy, zero trust transformation, and AI infrastructure foundations.
Feel free to explore the repositories — feedback and thoughtful questions are always welcome.
Jonathan Tene
Enterprise Architect | Hybrid Cloud · Zero Trust · Network Modernization
LinkedIn • Email