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letchupkt/README.md
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πŸ” CYBERSECURITY ARCHITECT & FULL-STACK ENGINEER

Securing Infrastructure. Scaling Systems. Exploiting Vulnerabilities (Ethically)

$ whoami
Ethical Hacker | Security Researcher | Full-Stack Developer | System Architect

"Security isn't a feature, it's a mindset. Code with purpose. Hack responsibly."


🎯 EXECUTIVE SUMMARY

Full-stack engineer with advanced expertise in offensive security, secure system architecture, and high-performance infrastructure. Specialized in identifying critical vulnerabilities, designing bulletproof applications, and leading security-first development initiatives. Experienced in both red team operations and defensive infrastructure hardening.

Certifications & Expertise:

  • Ethical Hacking & Penetration Testing
  • Secure Software Development Lifecycle (SSDLC)
  • Cloud Security & Infrastructure Hardening
  • Advanced Threat Assessment & Remediation

πŸ›‘οΈ CORE COMPETENCIES

SECURITY & PENETRATION TESTING

Skill Level Expertise
Penetration Testing Intermediate Full-scope assessments, vulnerability exploitation, post-exploitation
Vulnerability Assessment Intermediate OWASP Top 10, CWE/CVSS analysis, risk quantification
Network Security Intermediate Network reconnaissance, packet analysis, protocol exploitation
Web Application Security Intermediate SQLi, XSS, CSRF, authentication bypass, session hijacking
Social Engineering Beginner Phishing analysis, social engineering assessments
Malware Analysis Beginner Binary analysis, reverse engineering, behavioral analysis

Kali Linux Burp Suite Metasploit Wireshark Nmap OWASP

Additional Tools:

Hashcat β€’ John the Ripper β€’ Hydra β€’ SQLmap β€’ BeEF β€’ Acunetix
Qualys β€’ Rapid7 β€’ Shodan β€’ Censys β€’ TheHarvester β€’ Maltego
Volatility β€’ IDA Pro β€’ Ghidra β€’ x64dbg β€’ Immunity Debugger

πŸ’» PROGRAMMING & DEVELOPMENT

Languages

Python JavaScript TypeScript C C++ Go Rust Bash SQL

Expertise: | Python: Exploit development, automation, security tools, data analysis

  • JavaScript/TypeScript: Secure web applications, real-time systems
  • C/C++: Low-level security, reverse engineering, performance optimization
  • Go: Microservices, cloud tools, concurrent systems
  • Bash: System administration, automation, penetration testing scripting

Full-Stack Web Development

Layer Technologies Proficiency
Frontend React, Next.js, TypeScript, Tailwind CSS, Vue.js Intermediate
Backend Node.js, Django, FastAPI, Express.js, GraphQL Intermediate
Databases PostgreSQL, MongoDB, Redis, Firebase, Elasticsearch Intermediate
DevOps Docker, Kubernetes, Terraform, CI/CD pipelines Beginner

React Next.js Node.js Django FastAPI PostgreSQL MongoDB


☁️ CLOUD & INFRASTRUCTURE SECURITY

Provider Services Certifications
AWS EC2, RDS, S3, Lambda, VPC, IAM, CloudFormation, Secrets Manager AWS Security Best Practices
Google Cloud Compute Engine, Cloud SQL, Firestore, Cloud Armor GCP Security
Azure App Services, SQL Database, Key Vault, Defender Azure Security
Digital Ocean Droplets, Managed Databases, App Platform Infrastructure Management

AWS Docker Kubernetes Google Cloud Terraform

Capabilities:

  • Cloud infrastructure hardening & compliance (HIPAA, PCI-DSS, SOC 2)
  • Containerized security & supply chain integrity
  • Infrastructure-as-Code security best practices
  • Automated threat detection & incident response

πŸ€– ARTIFICIAL INTELLIGENCE & MACHINE LEARNING

TensorFlow PyTorch Scikit-learn OpenCV Pandas NumPy

  • Deep Learning: Neural networks, CNNs, RNNs, transformers
  • Computer Vision: Image classification, object detection, anomaly detection
  • NLP: Sentiment analysis, text classification, threat intelligence extraction
  • Threat Intelligence: ML-based attack pattern recognition, zero-day detection
  • Malware Classification: Behavioral analysis, ML-based detection systems

πŸ”§ SPECIALIZED SECURITY TOOLS & FRAMEWORKS

Exploitation:        Metasploit Framework β€’ Empire β€’ Mimikatz β€’ ProxyLogon
                     Shellcode development β€’ Custom exploit development

Reconnaissance:      Shodan β€’ Censys β€’ TheHarvester β€’ Maltego β€’ OSINT Frameworks
                     Asset discovery β€’ Threat landscape mapping

Fuzzing & Testing:   AFL β€’ LibFuzzer β€’ American Fuzzy Lop β€’ Custom fuzzers
                     Zero-day research β€’ Edge case discovery

Code Analysis:       SonarQube β€’ SAST tools β€’ Dependency checking β€’ DAST
                     Static & dynamic analysis pipelines

Incident Response:   YARA β€’ Sigma rules β€’ Splunk β€’ ELK Stack β€’ Zeek
                     Forensics β€’ Log correlation β€’ Timeline analysis

πŸ—οΈ SYSTEM ARCHITECTURE & INFRASTRUCTURE

Component Expertise Focus Area
Microservices Intermediate Service mesh, API gateway, distributed tracing
DevOps Beginner Infrastructure as Code, CI/CD, automated security scanning
Linux/Unix Intermediate Kernel hardening, SELinux, AppArmor, firewall rules
Networking Intermediate VPCs, subnetting, DDoS mitigation, WAF configuration
IoT/Embedded Security Intermediate Secure firmware, embedded security, hardware hacking, IoT penetration testing

🌐 ADDITIONAL EXPERTISE

Hardware & IoT Security Pentesting

Raspberry Pi Arduino Home Assistant

IoT/Hardware Penetration Testing Capabilities:

  • Device firmware extraction & analysis
  • Embedded system vulnerability assessment
  • IoT protocol exploitation (BLE, Zigbee, Z-Wave)
  • Hardware reverse engineering & JTAG debugging
  • UART/Serial communication analysis
  • IoT network segmentation testing
  • Smart home security assessments
  • Wireless attack vectors (WiFi 6, mesh networks)
  • Physical security testing & tamper detection
  • Bootloader exploitation & secure boot bypass

Development & Collaboration

Git GitHub VS Code Linux Postman


🎯 CURRENT OPERATIONS

$ cat active_missions.txt
  • πŸ”¬ Advanced Threat Research: Identifying zero-day vulnerabilities and attack patterns
  • πŸ›‘οΈ Secure Architecture Design: Building resilient, attack-resistant systems
  • πŸ” Red Team Operations: Simulating advanced attacks for defensive improvements
  • πŸ€– Security Automation: ML-based threat detection & automated response systems
  • πŸ“Š Threat Intelligence: Analyzing attack landscapes, vulnerability trends
  • πŸš€ Cloud Security Hardening: Implementing defense-in-depth cloud strategies

πŸ“‹ PROFESSIONAL EXPERIENCE HIGHLIGHTS

βœ… Led penetration testing assessments for Fortune 50+ companies

βœ… Designed secure-by-default application architectures

βœ… Developed custom exploitation tools for security research

βœ… Implemented zero-trust security models across cloud infrastructure

βœ… Mentored security teams on offensive/defensive techniques

βœ… Presented security research at conferences and webinars

βœ… Published vulnerability disclosures and security advisories

βœ… Maintained 99.99% uptime in production systems with security hardening


πŸŽ“ CONTINUOUS LEARNING

Currently researching and developing expertise in:

  • Advanced Persistent Threat (APT) patterns & detection
  • Zero-trust architecture implementation
  • Kubernetes security & container orchestration
  • Blockchain & smart contract security
  • Quantum-resistant cryptography
  • Supply chain attack vectors
  • Advanced reverse engineering techniques
  • Exploit development frameworks

πŸ”— PROFESSIONAL NETWORK

Platform Purpose Link
🌐 Portfolio Security Research & Projects letchupkt.vgrow.tech
πŸ’Ό LinkedIn Professional Connections linkedin.com/in/lakshmikanthank
🎯 TryHackMe Security Training & CTF tryhackme.com/p/letchupkt
πŸ’¬ Discord Community & Collaboration Join Server
πŸ“§ Email Direct Communication letchupkt.dev@gmail.com

πŸ’° SUPPORT THE MISSION

If my security research and development tools have been valuable, consider supporting ongoing work:

PayPal Sponsor

Every contribution helps fund:

  • πŸ”¬ Advanced security research projects
  • πŸ› οΈ Open-source security tools development
  • πŸ“š Educational content & tutorials
  • πŸš€ Infrastructure for testing & development

πŸ“Š GITHUB ACTIVITY & METRICS

$ git log --oneline --all | head -20

GitHub Stats

GitHub Contributions

Top Languages

Activity Graph


πŸŽ–οΈ SECURITY PHILOSOPHY

β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”
β”‚ TRUST NO ONE. VERIFY EVERYTHING.        β”‚
β”‚ CODE WITH PURPOSE. HACK RESPONSIBLY.    β”‚
β”‚ SECURITY IS A JOURNEY, NOT A FEATURE.   β”‚
β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜

"In the realm of cybersecurity, knowledge is power. Responsibility is everything."

Professional Profile | Security-First Development | Ethical Research

Status: 🟒 Open to Collaboration | Security Consulting | Research Partnerships


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