// CYBERSECURITY PORTFOLIO
KAVI
Cybersecurity Researcher & VAPT Specialist
CSE Undergraduate building open-source security tools, OWASP Top 10 vulnerability scanners, and ML-driven defense systems in Kali Linux environments.
Who I Am
Kaviyarasan J
Modern enterprise security isn't just about detecting attacks—it's about responding swiftly to minimize operational downtime. I build my expertise around enterprise-grade security operations, specializing in cloud SIEM and endpoint telemetry through Microsoft Sentinel and Defender XDR.
Core Focus & Capabilities:
- ▹ Threat Detection & Triage: Analyzing multi-source log telemetry (endpoints, identity, email, cloud) to isolate false positives and catch true threats early.
- ▹ Hands-On SIEM/XDR Operations: Building detection logic, configuring threat policies, and exploring automated response playbooks.
- ▹ Security Fundamentals: Grounded in network protocols, operating system security, and offensive/defensive methodologies.
Driven by continuous learning and practical lab validation, I am eager to join a forward-thinking MNC security team to support threat monitoring and operational defense.
Technical Skills & Core Competencies
Cybersecurity & OS
Kali Linux · Vulnerability Assessment · Penetration Testing (VAPT) · Active Defense · OWASP Top 10 · Reconnaissance Automation · Password/Credential Hygiene · Information Security
Programming & Machine Learning
Python · Bash · JavaScript · HTML5 · CSS3 · Classification & Regression Modeling · Ensemble Methods · Applied ML for Security & Healthcare Use Cases
Databases, Tools & Networking
SQL · MySQL Workbench · RDBMS · Git/GitHub · Device Architecture · Initial Device Configuration · Routing Protocols
Core Competencies
Analytical & Critical Thinking · Attention to Detail · Ethical Judgment & Integrity · Problem-Solving Under Pressure · Clear Technical Documentation · Team Collaboration · Adaptability · Curiosity-Driven Research
Identity & Cryptography
Public Key Infrastructure (PKI) · Mutual TLS (mTLS) · OAuth 2.0 & SAML · Identity & Access Management (IAM) · Role-Based Access Control (RBAC)
SIEM & Telemetry
Microsoft Defender 365 / Microsoft Sentinel · Indicators of Compromise (IOC) Configuration · Incident Response & Log Ingestion
Frameworks & Compliance
NIST Cybersecurity Framework · ISO 27001/27002 · GDPR & PCI DSS Compliance · Risk Assessment Lifecycle
Vulnerability Management
CVSS v3.1 Risk Scoring · Tenable Nessus / Qualys Integration · Remediation Reporting Workflows
Verified Certifications
Click any certificate to view the full document and scan the QR code for independent verification.
Networking Devices & Initial Configuration
Issued by Cisco · Nov 2025 Cisco Badge
Cybersecurity Analyst Job Simulation
Issued by Tata (Forage) · Aug 2025 Forage Simulation
Introduction to Cybersecurity
Issued by Cisco Networking Academy · Aug 2025 Cisco NetAcad
Networking Basics
Issued by Cisco Networking Academy · Aug 2025 Cisco NetAcadTechnical Projects
StrikeProbe v4.0.0 — Enterprise-Style Web Vulnerability Scanner
Designed and deployed an OWASP Top 10 (2025)-aligned open-source vulnerability scanner for the Kali Linux environment, generating actionable remediation reports. Automated targeted web scanning phases to flag configuration weaknesses, cutting manual reconnaissance time. Documented tool architecture and logic transparently on GitHub to support collaborative open-source security research.
View Repository →Security Improviser v1 — ML-Driven Credential Security Tool
Built a password breach-checking and strength evaluation tool with ML-based classification/regression to score password security levels. Applied secure handling practices to credential data throughout analysis and reporting workflows.
View Repository →The Self-Healing Honeypot — Active Defense Framework (In Development)
Architecting an automated intrusion detection and rapid remediation framework using active defense principles. Designing isolation mechanisms and containerized sandboxes to intercept payloads and dynamically rebuild compromised network nodes.
In Development — Coming SoonIPv4 & IPv6 Categorizer
A utility to classify and categorize IPv4/IPv6 addresses for faster network identification. Streamlines network analysis workflows for security professionals and network engineers.
View Repository →Heart Disease Prediction AI
Healthcare ML project using a six-algorithm ensemble for stable and accurate prediction with secure handling of sensitive patient data. Demonstrates expertise in applying ML ethically to sensitive domains.
View Repository →Multi-Page Client Web Application
Re-architected a monolithic single-file site into a modular, multi-page HTML5/CSS3/JavaScript application for a laptop retail client, improving load performance, maintainability, and separation of concerns.
Client Project — PrivateSIEM Log Analysis & Triage
Configuring Indicators of Compromise (IOCs) and analyzing log telemetry for rapid threat containment and continuous monitoring.
Case StudyAPI Security & Authorization Audit
Evaluating REST APIs for Broken Object Level Authorization (BOLA) and JWT tampering, ensuring robust authorization controls.
Case StudyEducation & Background
B.E. Computer Science & Engineering
PERI Institute of Technology, Chennai, IndiaRelevant Coursework: Computer Networks · Database Management Systems (DBMS) · Data Structures & Algorithms · Operating Systems · Information Security
Security Curriculum Highlights
Academic SpecializationVulnerability Assessment · Penetration Testing Methodologies · Information Security · Network Configuration · OWASP-aligned Development Practices
GitHub Contributions
github.com/ARASAN011Actively maintains and publishes open-source security tools and ML projects on GitHub, contributing to the broader security research community with transparent architecture and documentation.
Tools & Technologies
Ready to Join Your Enterprise.
My primary objective is securing a full-time position at a leading Multi-National Corporation. While I showcase my expertise through specialized freelance projects, I am fully dedicated to bringing my skills in cybersecurity, VAPT, and modern development to a world-class enterprise team.
Freelance & Consulting
Available for specialized freelance projects encompassing modern development, security audits, and digital strategy.
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