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Cody Isaac

@codyisaac

Senior cybersecurity systems engineer specializing in EDR/SIEM engineering, vulnerability management, and incident response.

United States
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What I'm looking for

I’m looking for a senior cybersecurity engineering role where I can build and modernize EDR/SIEM, drive measurable vulnerability reduction, own incident response playbooks, and work with NIST CSF/MITRE ATT&CK aligned teams to improve MTTR.

I’m a Senior Cybersecurity Systems Engineer with 11+ years of enterprise IT experience and 5+ years in security engineering. Promoted to Senior Engineer (Apr 2024), I focus on high-impact security engineering that delivers measurable outcomes without disrupting production.

I led an enterprise-wide EDR/XDR platform migration from Trellix to SentinelOne across 14,500+ endpoints, completing a 3-month expedited deployment against a typical 6–12 month timeline with zero production disruption. I also reduced Critical and High exploitable vulnerabilities by 95%+ enterprise-wide (50,000+ findings to ~2,100) and currently lead migration of Tenable.sc to Tenable One SaaS to modernize the vulnerability program and remove on-prem overhead.

Deep in threat detection and monitoring, I architected and deployed SentinelOne Next-Gen SIEM with 750+ custom detection rules, replacing legacy tooling to expand threat visibility and automated response coverage. I write and maintain incident response playbooks across the full lifecycle, contain high-severity threats by cross-correlating events across multiple security platforms, and align my work to NIST CSF, MITRE ATT&CK, and PCI-DSS—backed by hands-on scripting, Linux/Windows administration, and continuous vulnerability assessments and penetration testing.

Experience

Work history, roles, and key accomplishments

Bloomin' Brands logoBB
Current

Senior Cybersecurity Engineer

Bloomin' Brands

Jan 2021 - Present (5 years 4 months)

Led expedited Trellix → SentinelOne EDR/XDR migration across 14,500+ endpoints with zero production disruption. Reduced Critical/High vulnerabilities by 95%+ enterprise-wide (50,000+ findings to ~2,100) and architected SentinelOne Next-Gen SIEM with 750+ custom detections aligned to NIST CSF/MITRE ATT&CK and PCI-DSS.

Purpose Financial logoPF

Desktop Support & Team Lead

Purpose Financial

Jan 2014 - Jan 2020 (6 years)

Led company-wide migration from Windows 7 to hardened Windows 10 baseline images, strengthening endpoint security posture and eliminating legacy OS vulnerabilities. Overhauled software deployment with PDQ/SCCM, remediated Group Policy misconfigurations enabling privilege escalation, and supported incident response, containment, and forensic investigation.

Education

Degrees, certifications, and relevant coursework

Limestone University logoLU

Limestone University

Bachelor of Science, Computer and Information System Security

Grade: Magna Cum Laude

Earned a B.S. in Computer and Information System Security, graduating Magna Cum Laude.

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