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minaro ikegima

@minaroikegima

SOC security analyst at Gloucestershire College who cut false positives by 25% through alert triage and SIEM rule tuning.

United States

Message

At Gloucestershire College, I monitor and triage client security alerts across Splunk and Microsoft Sentinel, tuning SIEM correlation rules and IDS/firewall detection logic to reduce false positives by 25%. I investigate phishing, malware, unauthorized access, and account compromise using EDR telemetry, SQL queries, and MITRE ATT&CK-aligned analysis.

Previously, at Cybarik Limited, I developed Python scripts and SQL queries that reduced manual alert triage time by 35%. At United Bank for Africa PLC, I supported system hardening, patch management, and infrastructure scanning, achieving 95% vulnerability remediation compliance.

Experience

Work history, roles, and key accomplishments

Current

Security Analyst - SOC

Current

Gloucestershire College

Nov 2023 - Present (2 years 11 months)

Monitors and triages client security alerts across Splunk and Microsoft Sentinel, reducing false positives by 25% and improving incident response time by 30%. Investigates security incidents including phishing, malware, and account compromise using EDR telemetry and MITRE ATT&CK-aligned analysis.

Splunk Microsoft Sentinel SIEM Incident Response EDR MITRE ATT&CK SQL Threat Intelligence Vulnerability Management TCP IP Firewall Analysis

Cybersecurity Analyst Intern

Cybarik Limited

Jan 2024 - Apr 2024 (3 months)

Triaged 150+ client security alerts monthly with a 98% closure rate, analyzing SIEM events, IDS logs, firewall telemetry, and endpoint data. Developed Python automation scripts and SQL-based queries to reduce manual triage time by 35%.

SIEM IDS Firewalls Python SQL Threat Intelligence MITRE ATT&CK Windows Linux

IT Support Analyst

United Bank for Africa PLC

May 2016 - Sep 2021 (5 years 4 months)

Performed system hardening, patch management, and infrastructure scanning across a 200+ user enterprise environment, achieving 95% vulnerability remediation compliance. Enforced MFA and least-privilege principles in Active Directory, reducing account compromise incidents by 60%.

Vulnerability Management Patch Management Active Directory MFA Incident Response Malware Analysis Phishing