Cody Isaac
@codyisaac
Senior cybersecurity systems engineer specializing in EDR/SIEM engineering, vulnerability management, and incident response.
What I'm looking for
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
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.
SOC Analyst
Security Finance
Jan 2020 - Jan 2021 (1 year)
Provided SOC detection, containment, and remediation using Rapid7 InsightVM/InsightIDR and SIEM-driven workflows to triage threats across heterogeneous platforms. Administered network monitoring and application security tools (Cisco Umbrella, ExtraHop, Veracode) and delivered security control gap reviews to improve risk posture.
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
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.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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