IMMANUEL TULI-MEGAMENO DOMINIQUE PETRUS
Windhoek
Summary
Information Security Specialist with passion for aligning security architecture plans and processes with security standards and business goals. Extensive experience developing and testing security framework for on-Premesis and cloud-based software. Versed in robust network attack and defense strategies.
Overview
5
5
years of professional experience
1
1
Certification
Work History
Implementation Consultant (Cybersecurity)
3Cs Aquarah Limited
Windhoek
10.2025 - Current
- Designed and implemented cybersecurity-focused proposals for client projects.
- Collaborate with cross-functional teams to enforce security policies, procedures, and best
practices across the organization. - Assisted with the deployment and implementation of solutions and products in customer environments across Namibia, Nigeria, Ghana, South Africa, and Tanzania.
- Provided ongoing support to clients across Namibia and multiple regions in Africa.
- Delivered support for Unified Endpoint Management (UEM) solutions.
SENIOR IT SECURITY SPECIALIST
Voraltex ICT Solutions
Windhoek
06.2023 - 09.2025
- Managing and maintaining diverse IT systems to ensure optimal performance and availability across enterprise environments.
- Providing technical support and troubleshooting for hardware, software, and network-related issues, improving system reliability and user satisfaction.
- Implementing and overseeing IT security measures to safeguard organizational infrastructure against emerging threats.
- Deployment and management firewall solutions to control network traffic and enforce security policies.
CYBERSECURITY ANALYST
Voraltex
Windhoek
07.2021 - 05.2023
- Monitor networks and systems for security breaches and respond to incidents in real time.
- Conduct vulnerability assessments and recommend remediation strategies.
- Analyze security alerts and threat intelligence to identify and mitigate risks.
- Implement and maintain security tools such as firewalls, SIEMs, and antivirus systems.
- Develop and enforce security policies, standards, and procedures.
- Operating system management (Windows Server, Linux)
- Network performance monitoring and troubleshooting
- Working with service providers on system upgrades and maintenance
CYBERSECURITY INTERN
Voraltex IT Solutions
Windhoek
03.2021 - 06.2021
- Conducting Cybersecurity Training for client organizations and Training for Security Certifications.
- Maintaining inventories, system configuration records.
- User account and permission management (Active Directory).
- Software deployment and patch management.
- Conducted vulnerability assessments and penetration testing for external clients, identifying and remediating security weaknesses in line with industry best practices.
- Working with the Wazuh Security Information and Event Management (SIEM) systems to monitor, detect, and respond to security incidents in real-time.
- Monitor networks and systems for security breaches and respond to incidents in real time.
- Conduct vulnerability assessments and recommend remediation strategies.
- Analyze security alerts and threat intelligence to identify and mitigate risks.
- Implement and maintain security tools such as firewalls, SIEMs, and antivirus systems.
- Develop and enforce security policies, standards, and procedures.
- Operating system management (Windows Server, Linux).
- Network performance monitoring and troubleshooting.
- Working with service providers on system upgrades and maintenance.
- As part of my Work-plan I assisted in the implementation of Frameworks such as NIST, performing tasks such as the identification of systems & assets, creation of current profile & implementation of security action plan and performing network vulnerability assessment as part of consultancy for Ondangwa Private Hospital.
- Assisted in the development of incident response plans, procedures, and policies.
- Researched emerging trends in cybersecurity threats, risks, and countermeasures.
- Documented processes through the use of SOP's, run books and play books for responding to cyber threats in accordance with industry standards.
Education
Bachelor of Computer Science - Information Security
Namibia University of Science And Technology
Windhoek11.2024
Bachelor of Computer Science - Cybersecurity
Namibia University of Science And Technology
Windhoek06.2023
Skills
- Linux
- Windows
- Wireshark
- Nmap
- Metasploit Framework
- Management
- Nessus Vulnerability
- AWS Cloud Services
- Wazuh SIEM
- Python
- Active Directory
- Lightweight Directory Access setup
- Information Security Governance
- IBM QRadar
- HCL Bigfix
Affiliations
Mr. Konzani Tizora, Head of Infrastructure and Network, Access Bank Namibia, +264 81 266 5424
Mr. Nasimane Ekandjo, Lecturer, Computer Science Department, Namibia University of Science and Technology, +264 61 207 2572
Mr Edward Nepolo. Head of Department. Lecturer. Department of Computer Science. Phone : +264 61 207 2520/+264 81 329 0294.
Mr. Nasimane Ekandjo, Lecturer, Computer Science Department, Namibia University of Science and Technology, +264 61 207 2572
Mr Edward Nepolo. Head of Department. Lecturer. Department of Computer Science. Phone : +264 61 207 2520/+264 81 329 0294.
Certification
- CompTIA Security+
- Certified Ethical Hacker
- Linux and Windows Pentesting with Python and Kali Linux
- Certified Network Security Practitioner (CNSP)
- Security Blue Team Level 1
Timeline
Implementation Consultant (Cybersecurity)
3Cs Aquarah Limited
10.2025 - Current
SENIOR IT SECURITY SPECIALIST
Voraltex ICT Solutions
06.2023 - 09.2025
CYBERSECURITY ANALYST
Voraltex
07.2021 - 05.2023
CYBERSECURITY INTERN
Voraltex IT Solutions
03.2021 - 06.2021
Bachelor of Computer Science - Information Security
Namibia University of Science And Technology
Bachelor of Computer Science - Cybersecurity
Namibia University of Science And Technology