📍 Patna, Bihar
🔐 Security Engineer | 🛡️ Cloud Security | ⚙️ Backend & Systems Builder
I break systems deliberately
so they fail safely.
Security-first engineer with backend and systems focus.
No checkbox security — attack-aware engineering.
If a system can be abused, it will be.
Design for adversarial conditions.
- Offensive security
- Defensive engineering
- Backend & infrastructure
- 🔐 Security is baseline
- 🧠 Threat models > tools
- 🧪 PoC without mitigation is useless
- 🏗️ Systems must fail safely
- 🤖 AI without security is risk
Defensive security tooling
- Threat detection
- Secure automation
- Defense workflows
🔗 https://github.com/sumansingh20/CyberShield
Privacy-first email system
- Zero-trust design
- Attack surface reduction
- Secure auth & storage
🔗 https://github.com/sumansingh20/BharatMail
- Real vulnerabilities
- Exploitation techniques
- Secure fixes
🔗 https://github.com/sumansingh20/Penetration-testers-and-secure-modern-web-apps
- Pentesting (Web, Network, System)
- Threat Modeling
- OWASP Top 10
- Linux Hardening
- Docker & Kubernetes Security
- CI/CD Security
- Cloud Security
Tools:
Nmap · Burp Suite · Metasploit · Wireshark · Linux
- Secure API design
- Authentication & Authorization
- Access control
- Data validation
- Boundary defense
Languages:
Python · Java · Node.js · Go · C/C++ · Bash
- Cloud threat models
- IAM & permissions
- Secure storage
Databases:
PostgreSQL · MySQL · MongoDB · Redis
- Malware detection
- Adversarial attack surface
- Securing AI pipelines
- AI threat modeling
Libraries:
TensorFlow · PyTorch · Scikit-learn · Pandas · NumPy
- Advanced pentesting
- Malware analysis
- Secure system design
- AI + cybersecurity
- Exploit → engineering rules
- Cybersecurity basics
- Exploit breakdowns
- Secure architecture
- AI security
- 📫 sumantech07@gmail.com
- 💼 https://www.linkedin.com/in/sumankumar-/
- 🧠 https://github.com/sumansingh20
- 🧩 https://www.leetcode.com/sumansingh20
Attackers think in possibilities
Defenders think in guarantees
I train myself to think like both
Secure systems aren’t built by understanding failure