Adeleke Abiodun

Results-driven Cybersecurity Analyst and Security Engineer with strong expertise in SIEM engineering, security monitoring, cloud security integration, endpoint protection, and detection engineering. Experienced in deploying and configuring enterprise security controls across Windows, Linux, databases, network infrastructure, and Azure cloud environments. Proven ability to design log pipelines, integrate security tools with SIEM, develop custom decoders and detection rules, and strengthen organizational security posture through proactive engineering initiatives.

Security Operations Engineer at Fast Credit Limited (2025-12 – Present)

• Architected and deployed an enterprise-wide Wazuh SIEM infrastructure, integrating Windows, Linux, network devices, database security tools, Sophos EDR/XG Firewall, and Microsoft Azure (Entra ID, Key Vault, DevOps) to achieve centralized security visibility across on-prem and cloud environments.
• Engineered advanced security monitoring by configuring Windows and Linux audit policies, implementing File Integrity Monitoring (FIM), and deploying Wazuh agents across production systems to ensure comprehensive telemetry and compliance coverage.
• Developed custom JSON decoders and Wazuh detection rules to accurately parse Sophos logs and improve alert correlation, significantly enhancing detection accuracy while reducing false positives.
• Strengthened endpoint and data protection posture by configuring Sophos DLP, Web Control, Application Control, Malware, and PUA policies to reduce attack surface and prevent data exfiltration.
• Led integration of database activity monitoring solutions and network infrastructure logs into the SIEM, improving visibility into privileged access, configuration changes, and anomalous behavior across critical assets.

Security Operations Center Analyst at Fast Credit Limited (2025-06 – Present)

• Deployed and configured the organization's SIEM environment to ensure end-to-end visibility across endpoints, servers, and cloud services.
• Fine-tuned detection rules and alert logic to minimize false positives and enhance threat detection accuracy.
• Conducted continuous log monitoring and analysis from sources like firewalls, EDR, and XDR to identify and investigate suspicious activities.
• Managed agent deployment across systems to ensure consistent log collection and alignment with compliance and operational requirements.
• Integrated core security tools into the SIEM platform, improving alert correlation and enabling faster, more efficient incident response.

AI Search Quality Rater at Oneforma (2024-10 – Present)

• Evaluate search engine results for accuracy, relevance, and overall quality, contributing to the development and improvement of artificial intelligence systems such as search algorithms and machine-learned rankers.
• Ensure search results align with user intent by representing the perspective of a typical end user and assessing whether the returned content is useful, contextually appropriate, and satisfies the query.
• Analyze search queries to understand user needs and provide judgments that support a better search experience.
• Deliver thorough, detail-oriented feedback on search results to help refine ranking systems and enhance user satisfaction.

Cyber Security Analyst at Cyberplural (2024-01 – 2025-05)

• Enhanced security monitoring efficiency by 40%, reducing the average incident detection time from 5 minutes to 3 minutes through developing and implementing a detection engineering lab using the ELK Stack.
• Automated breach and attack simulations using open-source BAS tools and SOAR, identifying 15 critical system vulnerabilities and reducing incident response time by 30%.
• Strengthened system authentication by configuring Rublon MFA on Linux SSH, reducing unauthorized access attempts by 50% (from 40 attempts per month to 20 attempts).
• Configured pfSense firewall and Snort IDS/IPS, achieving a 25% increase in network traffic monitoring accuracy and preventing 10 unauthorized access incidents monthly.
• Monitored security events and performed in-depth malware analysis, enabling a 20% reduction in false-positive alerts (from 50 false positives per week to 40 false positives).

Cybersecurity News Writer at Cybertechwiz (2023-09 – 2024-06)

• Produced SEO-optimized content that increased website traffic by 35% (from 10,000 monthly visitors to 13,500), providing in-depth articles and blogs on cybersecurity topics.
• Collaborated with cross-functional teams, aligning content with strategies to improve audience engagement by 15% (from 3,000 monthly interactions to 3,450).
• Built a professional portfolio showcasing diverse writing samples, attracting 5 new partnerships with tech brands and media outlets.

SOC Analyst - Internship at CFSS Cyber & Forensics Security Solutions (2023-10 – 2023-12)

3 Months Program

• Detected and investigated potential security threats by analyzing network traffic patterns, reducing average threat detection time by 40% (from 10 minutes to 6 minutes).
• Conducted digital forensics analysis, providing insights that reduced response time to security incidents by 20% (from 50 to 40 hours per incident).
• Optimized the performance of IDS/IPS, antivirus, and endpoint detection solutions, resulting in a 15% increase in overall tool efficiency and detecting 12 additional threats monthly.

Teacher at Vine Model Comprehensive College (2022-11 – 2023-10)

National Youth Service Corps

• Educated students in computer studies, achieving a 30% improvement in their academic performance, with 10 students scoring A grades compared to 7 in the previous year.
• Coordinated extracurricular activities and mentored students, contributing to their success in inter-school competitions with a 20% win rate (from 10 competitions, 2 wins).
• Enhanced the school community through innovative teaching methods and mentoring, increasing student participation in ICT clubs by 15 students.

Bachelor Of Science in Computer Science – Kwara State University (2017 – 2021)