02 — Area of expertise
Migrations & Hybrid Networking
Moving critical systems without the 3 a.m. rollback.
Replatforming and migrations planned for low downtime, on top of a hybrid network that ties on‑prem, GCP, Azure and AWS together.
- VMware vSphere 5.5/6 → 8 upgrades with custom low-downtime processes.
- Fleet replatforming from CentOS to AlmaLinux and Debian.
- Hybrid network with an on-prem hub: IPsec, Partner Interconnect, Azure ExpressRoute and HA-VPN with BGP across clouds.
- Network services run end to end: Cisco ASA, pfSense and iptables firewalls, Bind DNS, load balancing, Squid proxies.
- On-prem to AWS with Application Migration Service, and a hands-on VMware to Nutanix move.
Selected work
- Veolia
Datacenter replatforming
Hypervisor and OS generations upgraded without stopping the business.
- Veolia
Hybrid cloud network
15+ inter-site links, routing drift checked against Terraform intent.
- TeamWork
Cloud migrations
Critical on-prem workloads to AWS; VMware to Nutanix.
Full interactive presentation in progress.
Tools
- vSphere
- Nutanix
- AlmaLinux
- Debian
- BGP
- IPsec
- HA-VPN
- ExpressRoute
- Partner Interconnect
- Shared VPC
- AWS MGN
- OpenVPN
- Cisco ASA
- pfSense
- iptables
- Bind
- Squid