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Oluwajuwon OlisaOO
Open to opportunities

Oluwajuwon Olisa

@oluwajuwonolisa

I’m a cybersecurity-focused Information Security Analyst delivering actionable detection, response, and risk reduction.

United Kingdom
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What I'm looking for

I’m looking for a role where I can strengthen SOC monitoring and detection engineering with SIEM/EDR, lead incident response, and use threat intelligence to reduce risk—while collaborating across teams to improve security posture and maintain compliance.

I’m a cybersecurity professional with hands-on experience across both blue team and red team disciplines, focused on securing networks, systems, applications, and cloud environments against evolving threats.

In my current role as an Information Security Analyst (Remote, United Kingdom), I lead security monitoring improvements through holistic SIEM log and alert fine-tuning, vulnerability assessments across enterprise assets, and strengthening email security controls using SPF, DKIM, and DMARC.

I proactively detect and respond to threats through incident investigation and investigation workflows aligned with NIST SP 800-61, including daily dark web monitoring, phishing analysis, DLP and EDR policy implementation, and detection rules/playbooks across SIEM, EDR, and DLP platforms.

I also drive security assurance through cloud security assessments, WAF optimization, regulatory compliance ownership (ISO 27001 and PCI-DSS), and automation of security workflows using n8n—turning threat intelligence and operational insights into measurable improvements.

Experience

Work history, roles, and key accomplishments

KL
Current

Information Security Analyst

Aug 2024 - Present (1 year 11 months)

Led SIEM-integrated log and alert monitoring enhancements through a team of analysts and interns, and performed vulnerability assessments to remediate weaknesses before exploitation. Managed detection engineering, DLP/EDR policy enforcement, social engineering and dark web monitoring, cloud security assessments, and web application firewall optimization.

KM

Junior Information Security Analyst

Feb 2023 - Jun 2024 (1 year 4 months)

Performed daily security alert triage and incident investigation, escalation, and reporting for events impacting critical systems. Conducted threat hunting with Microsoft Sentinel using KQL and supported phishing analysis, DLP monitoring, dark web monitoring, vulnerability assessments, and VPN access management.

AltSchool Africa logoAA

Software Engineering Intern

AltSchool Africa

Feb 2022 - Jul 2022 (5 months)

Built front-end web interfaces through structured project work using common web technologies. Practiced problem-solving and logical thinking through implementation challenges.

Education

Degrees, certifications, and relevant coursework

AltSchool Africa logoAA

AltSchool Africa

Diploma in Software Engineering, Software Engineering

Completed a Diploma in Software Engineering at AltSchool Africa in 2022.

Lagos State University logoLU

Lagos State University

Bachelor of Science, Biochemistry

2015 - 2020

Grade: Second Class Honours

Earned a BSc in Biochemistry at Lagos State University (Second Class Honours). Completed the program between 2015 and 2020.

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