Open to opportunities

Leslie Nii-Adjetey

@leslienii-adjetey

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Security Engineer and tool developer delivering CVSS-scored findings, AI/LLM threat research, and forensics.

Ghana

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What I'm looking for

I’m looking for a Security Engineer role where I can build and automate SOC/SIEM tooling, perform web app security work, and apply privacy-preserving AI/LLM threat research. I want hands-on work with MITRE ATT&CK coverage and measurable detection improvements.

I’m a Security Engineer & Tool Developer with 3+ years of combined experience across SOC operations, independent security research, and hands-on digital forensics. I’ve identified critical vulnerabilities in client web application engagements and translated them into CVSS-scored remediation reports and prioritized roadmaps.

I build practical security tooling—like a custom Azure SIEM using the ELK Stack—and I automate analyst workflows with privacy-preserving, on-prem AI. I also publish AI/LLM-focused threat research, including OWASP LLM Top 10 work on prompt injection, data poisoning, model extraction, and adversarial jailbreaking.

My work blends web application penetration testing, forensics using Autopsy and The Sleuth Kit, cloud security, and SIEM architecture—backed by clear reporting using frameworks like STRIDE/DREAD and MITRE ATT&CK. I’m driven by real-world threat validation and mitigations that hold up in air-gapped, security-sensitive environments.

Experience

Work history, roles, and key accomplishments

Current

Cybersecurity Intern

Current

International Cybersecurity & Digital Forensics Academy

Feb 2025 - Present (1 year 3 months)

Performed end-to-end web application penetration tests across 5+ client engagements, uncovering 20+ vulnerabilities and delivering CVSS-scored remediation reports with prioritized roadmaps. Led forensic investigations for 3+ case types using Autopsy and The Sleuth Kit, producing legally aligned investigation reports.

Penetration Testing CVSS OWASP Top 10 WAF And Content Security Policy Hardening Digital Forensics Autopsy

Security Engineer

Independent Consulting

Mar 2024 - Jan 2025 (10 months)

Designed and deployed a custom Azure SIEM using the ELK Stack, centralizing logs from 12 servers and correlating events against MITRE ATT&CK rules to reduce mean time to detection by ~40%. Built on-prem, air-gapped Ollama LLM security tools for log triage and phishing classification, and published OWASP LLM Top 10 threat research on GitHub.

ELK Stack Ollama AI Powered Security Tooling On Prem Air Gapped Inference

Education

Degrees, certifications, and relevant coursework

Coursera

Google Cybersecurity Professional Certificate, Cybersecurity

2023 - 2024

Google Cybersecurity Professional Certificate covering topics such as cloud security, IAM, network security, data protection and encryption, incident response and forensics, container security, and security automation/DevSecOps.