Chigozie Umeh

💻 Professional Summary

Highly skilled Ethical Hacker and Cybersecurity Specialist with 8+ years of experience in penetration testing, vulnerability assessment, and security infrastructure design. Expert in deploying and managing comprehensive security monitoring environments using Proxmox, Kali Linux, and advanced open-source security tools. Proven track record of identifying critical vulnerabilities, implementing robust security measures, and training organizations on cybersecurity best practices.

🔧 Core Competencies

Penetration Testing

Vulnerability Assessment

Network Security

Proxmox Virtualization

Kali Linux

Metasploit Framework

Wireshark Analysis

Nmap Scanning

IPFS Implementation

Tor Network

Signal Protocol

Bitcoin/Blockchain

Suricata IDS

Prometheus Monitoring

Grafana Dashboards

Docker Containers

Python Scripting

Bash Automation

OSINT

Incident Response

Forensic Analysis

Compliance (SOC2, ISO27001)

Risk Assessment

🚀 Professional Experience

Security Analyst

likos.uno

Jan 2021 - Present

Designed and deployed enterprise-grade Proxmox virtualization infrastructure supporting 50+ security testing environments with automated provisioning and monitoring capabilities
Led penetration testing engagements for Fortune 500 clients, identifying 200+ critical vulnerabilities and achieving 98% remediation rate within SLA timeframes
Implemented comprehensive network monitoring solution using Suricata IDS, Prometheus, and Grafana, reducing incident response time by 75%
Developed custom Metasploit modules and Python automation scripts, increasing testing efficiency by 60% and standardizing vulnerability assessment procedures
Architected secure communication infrastructure using Signal Protocol and Tor networks for sensitive client communications and anonymous threat intelligence gathering
Established blockchain-based secure document verification system using Bitcoin and IPFS, ensuring tamper-proof audit trails for compliance reporting
Mentored team of 8 junior security analysts, conducting advanced training on Kali Linux, Wireshark analysis, and ethical hacking methodologies
Achieved SOC2 Type II and ISO27001 compliance for client environments, implementing security controls and conducting quarterly security assessments

Penetration Tester

SecureNet Technologies

Mar 2019 - Dec 2020

Conducted comprehensive security assessments for 40+ organizations across healthcare, finance, and technology sectors using advanced Nmap scanning and vulnerability analysis techniques
Built and maintained isolated testing environments using Proxmox containers, enabling safe exploitation of vulnerabilities without impacting production systems
Performed advanced network traffic analysis using Wireshark, identifying sophisticated APT attacks and implementing countermeasures that prevented $2M+ in potential damages
Developed automated vulnerability scanning framework integrating OpenVAS, Nessus, and custom Python scripts, reducing manual testing time by 45%
Implemented secure communication protocols for whistleblower protection using SecureDrop, Tor hidden services, and encrypted messaging systems
Established decentralized file storage solutions using IPFS for clients requiring censorship-resistant document management and secure data distribution
Delivered executive-level security briefings and technical training sessions, improving organizational security awareness by 80% as measured by phishing simulation results
Collaborated with law enforcement agencies on digital forensics investigations, providing expert testimony and technical analysis for cybercrime prosecutions

Information Security Analyst

TechGuard Corporation

Jun 2017 - Feb 2019

Managed enterprise security monitoring infrastructure using Prometheus and Grafana, providing real-time visibility into network threats and system performance across 500+ endpoints
Executed red team exercises using Kali Linux toolkit and Metasploit framework, successfully compromising 95% of target systems and providing detailed remediation guidance
Implemented privacy-focused communication channels using Matrix protocol and Signal encryption, ensuring secure internal communications for sensitive security operations
Deployed and configured Suricata intrusion detection system with custom rule sets, achieving 99.2% threat detection accuracy and reducing false positives by 65%
Conducted OSINT investigations and social engineering assessments, identifying critical information leakage and implementing data loss prevention measures
Established secure Bitcoin node infrastructure for cryptocurrency transaction analysis and blockchain forensics supporting law enforcement investigations
Automated incident response procedures using Python and Bash scripting, reducing mean time to containment from 4 hours to 45 minutes
Maintained Tails OS deployment for secure forensic analysis and anonymous research activities, ensuring operational security for sensitive investigations

Junior Security Researcher

CyberLabs Research Institute

Aug 2015 - May 2017

Researched and documented zero-day vulnerabilities in IoT devices and embedded systems, contributing to 12 CVE publications and improving industry security standards
Built comprehensive malware analysis laboratory using Proxmox virtualization, enabling safe reverse engineering of advanced persistent threats and ransomware families
Developed network reconnaissance methodologies using advanced Nmap scripting engine, creating custom NSE scripts for specialized vulnerability detection
Implemented secure communication protocols for research collaboration using Tor hidden services and encrypted messaging, protecting intellectual property and research data
Contributed to open-source security tools including Metasploit modules and Wireshark dissectors, with code accepted into official repositories
Established decentralized threat intelligence sharing platform using IPFS and blockchain technology, enabling anonymous collaboration between security researchers
Conducted security training workshops for academic institutions, teaching ethical hacking principles and responsible disclosure practices to 200+ students
Published 8 peer-reviewed research papers on network security, cryptographic protocols, and privacy-preserving technologies in leading cybersecurity journals

🎓 Education

Master Cybersecurity

WGU • 2025

Thesis: "Advanced Persistent Threat Detection in Virtualized Environments"

Bachelor of Management Science

2008

Magna Cum Laude • Focus: Business management

🏆 Certifications

Inviews

• CISSP - Certified Information Systems Security Professional

• CEH - Certified Ethical Hacker

• OSCP - Offensive Security Certified Professional

• GCIH - GIAC Certified Incident Handler

• CISM - Certified Information Security Manager