David Tolo has spent three decades architecting the infrastructure that keeps enterprises running, from global data centers at Oracle to zero-trust cloud environments at Berkshire Hathaway.
Today he pairs that depth with a forward edge: designing AI-powered systems, automation, and secure cloud platforms that turn modern tools into production reality.
He builds at every layer, from Palo Alto firewalls and hybrid cloud down to full-stack AI applications, and brings the calm judgment that only comes from 30 years in production.
Infrastructure, secured and architected end to end
From the firewall to the cloud control plane to the AI layer on top, the full stack under one architect.
Cloud Architecture
Enterprise-grade design across Azure, GCP, and AWS. Hybrid topologies, landing zones, and on-premises to cloud migration done without downtime.
Network Security & NGFW
Palo Alto Networks firewalls hands-on: Panorama, NGFW policy, SD-WAN, External Dynamic Lists, anti-spyware profiles, and DNS signatures.
Zero-Trust Security
Identity-first architecture, micro-segmentation, IPsec and ExpressRoute, and least-privilege access models built for the modern threat landscape.
Disaster Recovery & HA
High-availability design, replication, failover, and recovery planning that keeps mission-critical systems online when it matters most.
Virtualization
Large-scale virtualization with VMware, Hyper-V, OVM, OVS, and XEN. Data center consolidation and worldwide platform management.
AI Infrastructure & Automation
The modern edge: AI platforms, automation pipelines, and integrations across Claude, Twilio, Google Cloud, and Meta, deployed and run in production.
30 years, most recent first
A track record spanning global enterprise data centers, hyperscale cloud migrations, and the AI-native systems being built today.
- Enterprise infrastructure engineering at MSP scale across multiple client environments.
- Network security, firewall management, and cloud architecture for production workloads.
- Hands-on Palo Alto Networks configuration across hardware and software firewalls.
- External Dynamic Lists (EDLs), anti-spyware profiles, and DNS signature policy.
- Remote infrastructure management, implementation, and lifecycle support.
- Built and operates an AI-powered digital infrastructure platform serving businesses, nonprofits, and enterprises nationally.
- Deployed full-stack web presence, automation, and AI systems end to end.
- Integrations across Twilio, Claude AI, Google Cloud, and the Meta API.
- Production stack on Hetzner, Nginx, Node.js, and PostgreSQL.
- Azure architecture for enterprise-scale hybrid cloud environments.
- IPsec and ExpressRoute connectivity design and implementation.
- Zero-trust security architecture and access modeling.
- On-premises to cloud migration with minimal disruption to operations.
- Large-scale virtualization and data center management worldwide.
- Windows and Linux platform migrations across global environments.
- Virtualization platforms: VMware, OVM, OVS, and XEN.
- Operations and reliability for enterprise data center fleets.
Credentialed across the enterprise stack
The toolkit
Cloud & DevOps
Security & Network
Virtualization & DR
AI & Automation
Systems & Frameworks
Let's build something that lasts
Available for senior infrastructure roles, architecture consulting, and strategic partnerships. Reach out directly.