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OY

Oluwaseyi Yusuf

Threat Detection & Incident Response Strategic Cybersecurity Analyst

Camby, IN, USA

๐Ÿ”ดHODLing

Cybersecurity Analyst with 4+ years of experience securing enterprise and financial environments through SOC operations and incident response. Expert in SIEM administration (Splunk, QRadar) and EDR integration, achieving 40% MTTR reduction and 60% threat detection improvement. Skilled in vulnerability management, NIST 800-53, ISO 27001, PCI-DSS, HIPAA, and cloud/Windows/Linux infrastructure hardening.

Skills

Windows Server Administration8/10
Incident Response & Forensics8/10
Microsoft Defender8/10
MITRE ATT&CK8/10
NIST 800-53 / Compliance Frameworks8/10
QRadar (8/10)Splunk (8/10)Vulnerability Management (8/10)Active Directory / IAM (7/10)Nessus (7/10)TCP/IP Networking (7/10)PowerShell (7/10)Qualys (7/10)Linux / RHEL (7/10)Microsoft 365 Security (7/10)ServiceNow (7/10)VMware / ESXi (6/10)Ansible (6/10)AWS / Cloud Security (6/10)Bash Scripting (6/10)

Work Experience

Cybersecurity Analyst

McKinsey & Company

Jan 2023 โ€” Present

Orchestrated forensic investigations using Splunk, QRadar, and Microsoft Defender for Endpoint, achieving a 40% reduction in MTTR. Architected SIEM correlation rules increasing threat detection effectiveness by 60%. Executed vulnerability assessments using Nessus and Qualys across Windows, RHEL 7/8, and VMware ESXi, reducing breach exposure by 30%. Integrated threat feeds with MITRE ATT&CK mapping, neutralized 5+ major cyber-attacks, managed enterprise patch cycles aligned with NIST 800-53, ISO 27001, PCI-DSS, and HIPAA.

Security Analyst

DXC Technology

Feb 2022 โ€” Dec 2022

Detected and escalated suspicious activity, phishing, and malware with a 98% resolution rate. Deployed Microsoft Defender and managed patch compliance via SCCM/Intune. Administered Microsoft 365 security including MFA and Active Directory for 200+ users. Authored SOPs improving response efficiency by 30%. Managed security incidents via ServiceNow and Zendesk ensuring SLA compliance.

Education

Purdue University Global

BSc ยท Cybersecurity

? โ€“ 2025

Ivy Tech Community College

Technical Certificate ยท Cloud Technologies

? โ€“ 2023