Open to opportunities

Nemuel Ngoiyo

@nemuelngoiyo

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Cybersecurity professional skilled in vulnerability management and threat detection.

Netherlands

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What I'm looking for

I am looking for a role that fosters collaboration, encourages continuous learning, and offers opportunities for career growth in cybersecurity.

I am a dedicated Cybersecurity Professional with hands-on experience in vulnerability management, SIEM monitoring, and endpoint threat detection. My expertise lies in mapping attack surfaces, identifying real-world vulnerabilities, and conducting OWASP-based vulnerability scanning. I am adept with tools like Nmap, Burp Suite Pro, OpenVAS, Metasploit, and Kali Linux, and I am passionate about applying Threat Modeling frameworks such as MITRE ATT&CK to improve defenses while collaborating across teams to elevate organizational security posture.

In my current role as a Cybersecurity Officer at Proautnorm B.V., I have built practical threat models for internal infrastructure and web applications, aligning with MITRE ATT&CK to simulate adversary behavior and identify potential entry points. My work includes conducting stealth-mode vulnerability assessments and performing web application penetration testing aligned with OWASP Top 10, utilizing various tools to simulate real-world attack chains. I have also designed proof-of-concept attack vectors to enhance threat modeling and mitigation strategies.

As a freelance Cybersecurity Analyst on Upwork, I deliver threat analysis, vulnerability assessments, and advisory services to global clients. My commitment to continuous learning and improvement drives me to stay updated with the latest cybersecurity trends and technologies, ensuring I can provide the best possible service to my clients and employers.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Officer

Current

Proautnorm B.V

Apr 2025 - Present (5 months)

Built practical threat models for internal infrastructure and web applications, aligning with MITRE ATT&CK to simulate adversary behavior and identify potential entry points, lateral movement paths, and critical impact zones. Mapped attack surfaces by correlating Shodan intelligence, open ports, and exposed services to develop a high-fidelity asset inventory across DMZ-exposed infrastructure and p

Shodan Nmap OpenVas Nikto Sqlmap Metasploit Kali Linux

Cybersecurity Analyst

Upwork

Feb 2025 - Mar 2025 (1 month)

Positioned myself as a freelance Cybersecurity Specialist on Upwork, delivering threat analysis, vulnerability assessments, and advisory services to global clients.

Threat Assessment Vulnerability Assessment Client Management Advisory

Network Support Engineer

ADTS

Dec 2024 - Jan 2025 (1 month)

Monitored security events with Cisco AMP for Endpoints and network performance using PRTG. Investigated security incidents, escalated threats, and supported incident response efforts, resolving 90% of escalated tickets within SLA timelines.

Cisco AMP PRTG Incident Response Vulnerability Assessment Service Desk Management

SOC Analyst Job Simulation Training

Telstra, Mastercard

Sep 2024 - Oct 2024 (1 month)

Participated in a SOC Analyst Job Simulation Training program, gaining practical experience in security operations center activities.

SOC Incident Response Security Monitoring Threat Detection Security Analysis

Lead Shopper

Picnic International

Mar 2022 - Mar 2024 (2 years)

Worked part-time while reskilling into IT and cybersecurity. Managed and led a team of shoppers to ensure efficient order fulfillment and customer satisfaction.

Team Leadership order fulfillment Customer Service Logistics Time Management

Education

Degrees, certifications, and relevant coursework

Cisco Networking Academy

Certification, Python, Networking

Studied Python programming language fundamentals and advanced concepts. Gained knowledge in Cisco networking principles and configurations.

CompTIA

Certification, Cybersecurity Analysis

Pursuing the CompTIA CySA+ certification, focusing on cybersecurity analyst skills. Preparing for advanced threat detection, analysis, and response.

Ironhack

Certification, Cybersecurity

Completed hands-on labs covering SIEM tools, DFIR, penetration testing, vulnerability assessment, and secured design principles. Built foundational expertise in ethical hacking, network security, and incident response.