Open to opportunities

Matthew Emmanuel

@matthewemmanuel

Message

I monitor security alerts, tune SIEM detections, and automate incident triage workflows.

Nigeria

Message

What I'm looking for

I'm seeking opportunities in SOC operations, security monitoring, or IT security support where I can investigate alerts, improve detections, document incidents, and continue developing hands-on incident response skills.

I've monitored SIEM, IDS/IPS, and endpoint alerts as a Cybersecurity Intern with CodeAlpha, investigating incidents, escalating confirmed threats, and filtering false positives.

I improved detection accuracy by 30% through SIEM correlation-rule tuning and reduced alert noise reaching the escalation queue. I also created incident playbooks and alert-handling documentation to support consistent response handovers.

In hands-on Azure Sentinel projects, I've developed KQL detection rules and dashboards for reconnaissance, brute-force, and lateral-movement activity, reducing false positives by 65%. I've also built segmented Azure Firewall environments and analyzed telemetry for vulnerabilities, anomalies, and lateral movement.

I enjoy practical security operations work, from phishing triage automation and IOC analysis to Python-assisted network traffic analysis. I'm building a long-term career in SOC operations, security monitoring, and IT security support.

Experience

Work history, roles, and key accomplishments

Cybersecurity Intern — SOC

CodeAlpha

Nov 2024 - Dec 2024 (1 month)

Monitored security alerts across SIEM, IDS/IPS, and endpoint telemetry, investigating and escalating confirmed incidents while filtering out false positives. Improved detection accuracy by 30% by tuning SIEM correlation rules and removing redundant alert logic, reducing noise reaching the escalation queue.