Charles Chukwunonye
@charleschukwunonye
I investigate threats, assess vulnerabilities, and strengthen security operations with Splunk and incident response.
What I'm looking for
I've investigated a Splunk BOTS v1 web defacement case, reconstructing the attack chain to identify attacker TTPs, malware hashes, and brute-force credentials. I also identified 53 vulnerabilities on Ubuntu 24.04, including two Critical CVSS 9.8 findings, and completed remediation verification.
I'm an ISC2 Certified in Cybersecurity professional focused on blue team operations, SOC analysis, proactive monitoring, threat detection, and structured incident response. My hands-on work includes Splunk, Wireshark, Nessus, Nmap, MITRE ATT&CK, network security, cryptography, and playbooks for BEC, ransomware, and DDoS incidents.
Experience
Work history, roles, and key accomplishments
Cybersecurity Analyst Trainee
TechCrush
Jan 2026 - Jul 2026 (6 months)
Completed an intensive 6 months cybersecurity bootcamp at TechCrush. Built 6 hands-on capstone projects covering incident response playbook development, Splunk SIEM investigation, vulnerability assessment using Nessus and Nmap,Network security setup, FTP vs SFTP analysis and cryptography implementation using OpenSSL. Specialised in blue team operations and SOC analysis.
Education
Degrees, certifications, and relevant coursework
Okota Senior Secondary School
West African Senior School Certificate, General Studies
Completed secondary education and obtained the West African Senior School Certificate (WASSCE).
Availability
Location
Authorized to work in
Website
charles-sig.netlify.appPortfolio
github.com/Sigmaxx459Salary expectations
Social media
Job categories
Skills
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