Cybersecurity Specialist
Systemtech Services Limited
• Deployed Pentera Security Validation Solution for First Bank Plc, Zenith Bank Plc, and the Nigerian National Petroleum Company (NNPC), enabling automated breach and attack simulation to continuously validate security controls. • Deployed Trend Micro Vision One (XDR) for First Bank Plc Nigeria, providing unified detection and response capabilities across endpoints, networks, emails, and cloud workloads. • Provided ongoing Pentera solution support for First Bank Plc and Zenith Bank Plc, ensuring continuous security validation and timely remediation of discovered vulnerabilities. • Deployed asset and services monitoring solutions (OPMANAGER, ManageEngine) to enterprise clients, enabling real-time infrastructure visibility and proactive alerting. • Designed and implemented Next-Generation Firewall (NGFW) solutions using PFSense, OPNSense, and FortiGate for network perimeter security and deep packet inspection. • Deployed Data Security solutions including Varonis and BigID to clients, enabling data classification, access governance, and compliance reporting. • Performed digital forensics and network monitoring using Wireshark and tshark to investigate security incidents, analyze packet captures, and identify indicators of compromise (IoCs). • Conducted penetration testing engagements using Metasploit Framework, Burpsuite, and Cupp to identify and exploit vulnerabilities across client environments prior to real-world exploitation. • Analyzed email headers to detect and investigate phishing attempts using MX Checker and related tools, reducing phishing exposure for enterprise clients. • Developed Python scripts to automate security solution deployments, reducing manual effort and accelerating rollout timelines across multiple client engagements. • Managed Active Directory and Microsoft Entra ID for user and device access governance, enforcing role- based access controls and least-privilege principles. • Administered Linux-based environments (Ubuntu, Kali Linux, OpenBSD) and Microsoft Windows Server for security operations and infrastructure management. • Implemented patch management programs and automated OS deployment workflows to minimize exposure to known vulnerabilities across client environments. • Contributed to Business Continuity and Disaster Recovery planning, ensuring critical systems and data could be restored within defined recovery time and point objectives. • Configured and managed cloud environments with integrated security controls, including cloud storage management and cloud migration projects with embedded security practices.
