Senior Security Engineer specializing in offensive security, penetration testing, and secure infrastructure design.
Currently building and breaking things in my homelab while pursuing security leadership roles at innovative tech companies.
MrR3bu5 comes from my fascination with puzzles and problem-solving. As a kid, I loved comic books, especially The Riddler from Batman. Not for the villainy, but for how he turned everything into a puzzle to solve. That's what sparked my interest in computers and eventually cybersecurity.
A rebus is a puzzle using pictures, symbols, or letters to represent words. Security is exactly that: decoding systems, finding hidden patterns, solving complex problems. Every vulnerability is a puzzle, every defense is a riddle to understand.
Just like The Riddler made challenges exciting, I approach security with curiosity, creativity, and a drive to figure out how things work and how they break.
Offensive Security
- Penetration testing and vulnerability assessment
- Red team operations and adversary simulation
- Security tool development and automation
Infrastructure Security
- Secure remote access architectures
- Defense-in-depth implementation
- Network segmentation and isolation
Security Engineering
- Python automation for security workflows
- Security controls implementation
- Incident response and forensics
Zero-trust VPN architecture using WireGuard with service-level access control. Replaced broad network access with explicit firewall rules, reducing attack surface by 95%.
Tech: WireGuard, OPNsense, Python, Network Security
Status: Active Development
Multi-zone security architecture with:
- Production services (Proxmox, TrueNAS)
- Isolated red team lab environment
- Automated security validation
- Complete network segmentation
Focus: Defense-in-depth, zero-trust principles, continuous validation
Security Tools
- Offensive: Metasploit, Burp Suite, Nmap, Hydra, Custom Tooling
- Defensive: OPNsense, WireGuard, Security Onion
- Analysis: Wireshark, tcpdump, Volatility
Infrastructure
- Virtualization: Proxmox, VMware
- Networking: VLANs, VPN, Firewall Architecture
- Storage: TrueNAS, ZFS
Development
- Languages: Python, Bash
- Tools: Git, Docker, Ansible
- Platforms: Linux (Debian, Kali), Windows
Cloud & DevSecOps
- Cloud: AWS, Azure basics
- CI/CD: GitHub Actions
- IaC: Terraform basics
Active Training
- HackTheBox Pro Labs (Dante, Expressway)
- CTF competitions and challenges
- Security research and tool development
- Homelab experimentation
Certifications & Skills
- Offensive Security Techniques
- Network Security Architecture
- Python Security Automation
- Incident Response
Looking for opportunities in:
- Security Leadership: Sr. SRE, Security Architect roles
- Offensive Security: Penetration testing, red team
- Security Engineering: Infrastructure security, automation
Particularly interested in companies that value:
- Innovation and cutting-edge technology
- Security-first culture
- Continuous learning
- Hands-on technical leadership
Professional: LinkedIn
Location: California
Email: Available on request
Open to discussing security projects, collaboration opportunities, or just talking shop about offensive security and infrastructure hardening.
Security through understanding. The best defenders think like attackers. My homelab is where I break things to understand how to protect them better.
Document everything. Security implementations without documentation are security theater. Every project includes comprehensive guides and validation scripts.
Continuous improvement. Security is a journey, not a destination. Regular testing, monitoring, and iteration are essential to staying ahead of threats.
Note: Projects marked as "Active Development" are living repositories that evolve over time, demonstrating continuous improvement and real-world security practices.