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I do “what I want.”
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I do “what I want.”
49 followers · 1 following

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Debajyoti0-0/README.md 
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Portfolio LinkedIn Twitter TryHackMe HackTheBox Blog


Profile Views GitHub followers

🎯 Operator Dossier

Name        : Debajyoti Haldar
Role        : Senior Cybersecurity Engineer
Mission     : Embed security-by-design into enterprise SaaS, FinTech, cloud-native,
              and regulated ecosystems while continuously strengthening detection
              capabilities, incident response readiness, and proactive cyber defense.
Philosophy  : "Security is not a product, but a process. Defend forward, assume breach,
              and always verify. The best defense is a proactive offense driven by
              threat-informed engineering."
🔐 Specializations (Click to Expand) 
✅ Product Security & Secure SDLC          ✅ AI / LLM Security & Red Teaming
✅ Offensive Security & Red Team Ops       ✅ DevSecOps & CI/CD Security
✅ Threat Detection Engineering            ✅ Threat Hunting & Behavioral Analytics
✅ Incident Response & Forensics           ✅ Compliance (ISO 27001 / NIST / PCI-DSS)

🏆 Operational Metrics

🎯 Experience 🛡️ Assets Secured 🔴 THM Rank 🟩 HTB Rank 🚨 Zero-Days 🤖 AI Attack Surface
5+ Years 100+ Enterprise TITAN — Top 1% Pro Hacker Critical Finds 55% Reduction
Secure SDLC Cloud + On-Prem TryHackMe HackTheBox RCE & Data Breach Prevented LLM Red Teaming

🛠️ Technical Arsenal

Languages & Scripting

Python C C++ PowerShell Bash

Security Frameworks & Platforms

MITRE ATT&CK OWASP NIST ISO 27001 PCI-DSS

Offensive Security Tooling

Burp Suite Nmap Metasploit SQLMap Aircrack-ng

SIEM / Detection Platforms

Splunk CrowdStrike Wazuh Sigma YARA

DevSecOps & Cloud

GitHub Actions Jenkins SonarQube Trivy AWS Docker

⚔️ Project Arsenal

Custom-built offensive & defensive security tools — open source, battle-tested, community-adopted.

🤖 AI Security War Room

Core AI Security Competencies:

  • Prompt Injection Jailbreak Attack Simulation RAG Pipeline Security
  • Vector Database Audits MITRE ATLAS Mapping AI Threat Modeling
  • LLM Red Teaming Generative AI Risk Assessment Agentic AI Security

📊 GitHub Metrics

GitHub Metrics Isometric Calendar

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