Résumé and career summary
A recruiter-friendly summary of my confirmed experience, SANS education, and cybersecurity credentials.
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Brandon Scott Gregory
CYBERSECURITY ENGINEER
gregocys.com · BrandonScott@GregoCys.com · GitHub · LinkedIn
Professional Profile
Cybersecurity Engineer with experience in enterprise identity and endpoint security, application control, incident investigation, and policy validation. Graduate of SANS Technology Institute with a Bachelor of Science in Applied Cybersecurity.
Professional Experience
Classic Collision — Cybersecurity Engineer | Dec 2023 – Present
- Engineer and validate Microsoft Entra ID, Conditional Access, Intune, Windows 365, and Group Policy controls.
- Investigate AppLocker enforcement and endpoint behavior; support CIS-aligned browser security configuration and application compatibility testing.
- Analyze security alerts in Microsoft Sentinel and Defender, correlate identity telemetry using KQL, and document evidence-based incident dispositions.
- Use PowerShell for endpoint diagnostics, configuration verification, and repeatable troubleshooting workflows.
DefendEdge — Tier 2 Counter Threat Intelligence Analyst | May 2023 – Nov 2023
Counter-threat intelligence investigations, alert triage, and documentation of technical findings.
United States Navy — Air Traffic Controller | Sep 2013 – Nov 2023
High-reliability operational procedures, situational awareness, coordination, and technical communication.
Northbeach — Network Administrator | Sep 2009 – Sep 2013
Network and systems administration.
Education
SANS Technology Institute — Bachelor of Science in Applied Cybersecurity · Graduated
American Military University — Additional computer science coursework
Certifications
GIAC: GPEN, GMON, GCFA, GCIA, GPYC, GCIH, GSEC, GISF, GFACT. Credential details and current standing: Credly verification profile.
Technical Focus
Security engineering: Entra ID, Conditional Access, Intune, Group Policy, AppLocker, Windows 365, CIS browser baselines.
Detection and research: Microsoft Sentinel, Defender, KQL, incident triage, Ghidra, x64dbg, Windows PE analysis.
Development: PowerShell, Python, C fundamentals, Git, virtual machines.
Selected Technical Work
Identity policy and device-bound session credentials; endpoint application control and browser hardening; evidence-based security investigations; GregoGuard Windows binary analysis and memory-safety lab reports.