Geoffrey Muriuki
@geoffreymuriuki
Cybersecurity analyst focused on SOC operations, detection engineering, and DFIR.
What I'm looking for
I am a cybersecurity analyst with practical SOC, detection engineering, and digital forensics experience, having built and deployed four production-grade blue-team tools and completed a six-lab Windows memory forensics series using Volatility. I validate telemetry end-to-end, engineer precision SIEM detection logic in Wazuh, and convert noisy logs into clear, defensible findings.
My hands-on work includes live alert triage during an Elevate Labs internship, multiple freelance security projects that replicate enterprise SOC conditions, and several open-source tools (SSH brute-force mitigation, DoS defense, file integrity monitoring, and Windows logon tracking) that improved detection accuracy and reduced manual review time.
Experience
Work history, roles, and key accomplishments
Freelance Security Engineer
Freelance Security Projects
Jan 2024 - Present (2 years 2 months)
Built and deployed four production-grade security automation tools and constructed a virtual SOC lab to validate detection logic and accelerate hands-on testing and investigations.
Cybersecurity Analyst
Elevate Labs
Jun 2025 - Aug 2025 (2 months)
Monitored live security events, triaged alerts, and documented incident timelines to reduce ambiguity in shift handoffs and improve response turnaround on recurring alert pattern resulting in a 30% reduction in incident response time.
Education
Degrees, certifications, and relevant coursework
Masai Mara University
Bachelor of Science, Computer Science (Cybersecurity Specialization)
Pursuing a Bachelor of Science in Computer Science with a cybersecurity specialization, covering computer architecture, operating systems, and networks.
Elevate Labs
Cybersecurity Internship Certificate, Cybersecurity
2025 - 2025
Completed a cybersecurity internship program focusing on SOC operations, detection engineering, and incident triage.
Availability
Location
Authorized to work in
Portfolio
github.com/Atlas-GhostshellSalary expectations
Social media
Job categories
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