2016: Infrastructure as a Service (IAAS) and Application Architecture:

Client requested upgrade of a legacy system for an organization that engages potential voters in U.S. elections across dozens of campaigns. Migrated to a full virtualized IAAS microservices architecture with virtual firewalls, virtual LANs, and virtual DEV/TEST/PROD servers. Negotiated contract for service, did load testing to predict needed allocation of resources, and led team for a successful roll-out, and hosted solution.

Originally setup in MySQL and moved to MariaDB

Client had an emergency situation regarding a custom Windows .NET application that was an online store, a CRM system, an enterprise shipping/printing management system, and an employee management system.

Was able to immediately identify key security issues and attack vectors to stop ongoing attacks.

Assisted legal teams/law enforcement with chain of evidence and reports. Worked with legacy system code/server and client’s IT team to identify further weaknesses in system.

Led teams in multi-year process to modularize and replace legacy infrastructure without impacting business continuity. Upgrades included:

Client had legacy Windows NT application (not connected to Internet, but running legacy system) that was running on VMWARE ESXi.

Client wanted to migrate to KVM/qemu however the old physical system had IDE emulation via Adaptec SCSI->IDE. And client had created the VMWARE emulation the same way. Thus when the VM was converted from VMWARE to KVM/qemu the system would not eboot. Got the infamous BSOD with "INACCESSIBLE BOOT DEVICE" error as it was looking for a SCSI drive controlled as IDE by an adaptec driver that didn't exist anymore.