A working reference built from real problems — things debugged, configured, scripted, and documented over a career in enterprise infrastructure. Organized by domain below.

⬡ Networking & Observability
Enterprise network architecture, traffic analysis, telemetry pipelines, and deep-packet inspection. Covers Arista switching, ExtraHop network detection and response, SNMP, SSL/TLS, and packet capture workflows.
⬡ Systems & Operating Systems
Unix, Linux, AIX, and Windows systems administration. From Tandem high-availability environments to modern Linux server management — configuration, troubleshooting, and operational reference notes.
⬡ Scripting & Automation
Python and PowerShell scripts for infrastructure automation, data processing, and tooling. Includes SQL and database work supporting both operational and research workloads.
⬡ Technical Leadership & Architecture
Enterprise architecture patterns, technical leadership, and systems thinking. Notes on managing complex infrastructure programs, cross-functional teams, and long-horizon technology decisions.