- Active Directory (Since Windows 2000)
- WatchGuard, Cisco, DrayTek, VLAN Routing
- SAN, KVM, HP iLO, RDP, SSH, Telnet
- Disaster Recovery & Business Continuity
- Microsoft 365, Azure, AWS, Google Cloud
- VMware, Hyper-V, Xen, Docker, QEMU
- Hybrid Cloud Migrations
- JavaScript, PHP, Python, Perl, C#.Net, VB.Net
- Shell Script, PowerShell, Batch Script
- RESTful APIs, JSON, XML, XHTML
- HTML/CSS (25+ years), Vanilla JS
- Accessibility (WCAG, WAI-ARIA)
- Structured Data, i18n/l10n
- React, Vue, Angular (used, prefer vanilla)
- SharePoint, PowerAutomate, PowerApps
- DexBot (custom automation tool)
- Business Workflow Analysis
- SIEM, Penetration Testing
- PCI-DSS, ISO, GDPR
- Multi-Factor Authentication, Certificate Services
- SharePoint WebParts, AppPlatform, AppFrameWork
- TeamViewer, GFI HoundDog, SolarWinds
- PowerBI, MS Projects, Azure DevOps
- Mentoring, Training, Onboarding
- International Collaboration
- Customer Relations & Expectation Management