CYBERSECURITY RESEARCHER

SREERAJ UNNIKRISHNAN

Cybersecurity Researcher · Penetration Tester · AI Security

I build, break, and secure intelligent digital systems.

Passionate about cybersecurity, ethical hacking, penetration testing, AI security and building secure digital solutions.

SECURITY ISN'T JUST ABOUT DEFENSE.
IT'S ABOUT UNDERSTANDING HOW SYSTEMS BREAK.

I am a Cybersecurity Researcher and Penetration Tester with a relentless passion for deconstructing complex digital architectures. By understanding the intricate mechanics of how systems fail and how adversaries exploit subtle flaws, I engineer resilient defensive countermeasures and secure modern software pipelines.

My expertise spans ethical hacking, web and network penetration testing, AI security, and privacy-preserving machine learning. As the creator of platforms like JEZTBrain and JEZTBrainSpider, I combine offensive security insights with advanced AI automation to identify vulnerabilities before they can be exploited.

Beyond vulnerability discovery, I partner with businesses to architect, build, and deploy production-grade digital solutions with end-to-end security baked into every layer of code.

Sreeraj Unnikrishnan

Sreeraj Unnikrishnan

Security Researcher & Penetration Tester
India & Global Remote
3+
Featured Projects
Innovative cybersecurity tools, OSINT frameworks, and AI defense platforms.
AI & Sec
Cybersecurity Research
Federated learning, threat modeling, OSINT automation, and secure image retrieval.
Enterprise
Real-World Experience
Hardware/network testing at Flextronics and offensive security research.

EXPERTISE & SKILLS

A comprehensive overview of security methodologies, offensive tools, engineering technologies, and compliance frameworks.

SECURITY

Penetration Testing Web Application Security Network Security Vulnerability Assessment Threat Hunting Security Analysis

TOOLS

Nmap Burp Suite Metasploit Wireshark SQLMap Nikto OpenVAS

TECHNOLOGY

Python Bash Linux React Next.js Node.js Supabase MongoDB

FRAMEWORKS

OWASP Top 10 MITRE ATT&CK STRIDE DREAD SIEM Active Directory VMware

RESEARCH & PUBLICATIONS

Exploring secure, privacy-preserving technologies through applied research.

Official Journal of Xidian University Publication Certificate - Sreeraj Unnikrishnan
Click to Inspect Official Certificate
RESEARCH PUBLICATION · 2024

SECURE IMAGE RETRIEVAL BASED ON
FEDERATED LEARNING AND
ADDITIVE SECRET SHARING

Sreeraj Unnikrishnan Hindustan Institute of Technology

A research study exploring secure image retrieval using federated learning and additive secret sharing, with a focus on privacy-preserving information retrieval and distributed learning.

Federated Learning Machine Learning Privacy-Preserving Computing Secure Image Retrieval Secret Sharing Cybersecurity
Published In
Journal of Xidian University
Publication Issue
Volume 18 · Issue 4 · 2024
Author Affiliation
Hindustan Institute of Technology
Category
Peer-Reviewed Research

FEATURED PROJECTS

Personal projects exploring cybersecurity, AI, and intelligence technology.

AI SECURITY PLATFORM

PROJECT 01 — JEZTBrain

An AI-powered cybersecurity platform focused on threat detection, vulnerability assessment, security analysis and intelligent security assistance.

React Supabase AI Cybersecurity
JEZTBrain AI Cybersecurity Platform Dashboard Preview
OSINT & SECURITY INTELLIGENCE

PROJECT 02 — JEZTBrainSpider

An advanced intelligence and cybersecurity platform focused on information gathering, OSINT and security analysis.

Next.js Python OSINT Security
JEZTBrainSpider OSINT Network Graph & Recon Dashboard Preview
AI / MACHINE LEARNING RESEARCH

PROJECT 03 — FLSIR

Federated Learning-Based Secure Image Retrieval

A research-oriented project exploring secure and privacy-preserving image retrieval using federated learning and cryptographic gradient aggregation.

Python Machine Learning Research Security
FLSIR Federated Learning Secure Image Retrieval Architecture Preview

EXPERIENCE

A track record of cybersecurity research, offensive security analysis, intelligent platform engineering, and operational leadership.

CURRENT · RESEARCH & DEVELOPMENT

01 — CYBERSECURITY RESEARCH & DEVELOPMENT

JEZTBrain
CURRENTLY DEVELOPING
Role: Cybersecurity Researcher & Developer

“Currently researching and developing JeztBrain, an AI-driven cybersecurity platform focused on intelligent security analysis, threat detection, security automation, and cybersecurity assistance.”

Focus Areas:
AI Security Cybersecurity Threat Detection Security Automation Vulnerability Assessment Security Intelligence AI-Assisted Security

02 — CYBERSECURITY RESEARCHER

@ Offenso Hacker Academy
09-2025 to 05-2026
Role: Cybersecurity Researcher
Focus: Cybersecurity Research · Ethical Hacking · Penetration Testing · Security Analysis

“Worked on cybersecurity research, ethical hacking, vulnerability analysis, penetration testing, and practical security labs while developing hands-on expertise across offensive security.”

Responsibilities / Areas:
  • Cybersecurity research and experimentation
  • Web application security testing
  • Vulnerability assessment
  • Penetration testing
  • Security tools and methodologies
  • Practical cybersecurity lab work
  • Security research and technical documentation

NETWORK TESTING ENGINEER

Flextronics
2023 — 2024
  • Network and hardware testing across high-performance electronic devices.
  • Conducted rigorous diagnostic testing procedures to ensure carrier-grade integrity.
  • Troubleshooting hardware and network-related issues with rapid root-cause isolation.
  • Comprehensive engineering documentation and stringent quality assurance checks.

MANAGER — SALES

KIWI DATES AND NUTS
2022 — 2023
  • Spearheaded retail and wholesale sales operations and customer lifecycle management.
  • Direct customer interaction, relationship building, and satisfaction optimization.
  • Coordinated supply chain inventory, logistics, and store stock allocation.
  • Cross-functional team coordination, staffing leadership, and operational scaling.

CERTIFICATIONS

Industry-recognized credentials validating practical offensive security, ethical hacking, and defense.

EC-Council Certified Ethical Hacker (CEH) Logo
CEH Pursuing
Certified Ethical Hacker
EC-Council
Offenso Certified Security Professional (OCSP) Logo
OCSP Completed
Offenso Certified Security Professional
Offenso Hacker Academy
View Certificate
TryHackMe Cybersecurity Training Logo
TryHackMe Completed
Practical Cybersecurity Training
Hands-on Offensive Labs & Pentesting

SECURITY LAB

Hands-on cybersecurity practice, exploit analysis, and vulnerability experimentation in isolated lab environments.

Metasploitable Lab Icon

Metasploitable

Exploit payload staging, service exploitation, and privilege escalation telemetry.

OWASP Labs Icon

OWASP Labs

Hands-on testing of XSS, SQL Injection, SSRF, IDOR, and authentication bypasses.

Active Directory Lab Icon

Active Directory

Domain enumeration, Kerberoasting, BloodHound attack paths, and ACL audits.

Web Exploitation Lab Icon

Web Exploitation

API fuzzing, parameter pollution, race condition triggers, and modern token audits.

Network Enumeration Lab Icon

Network Enumeration

Stealth port probing, deep packet dissection via Wireshark, and custom NSE scripts.

LET'S CONNECT

Have a security challenge, research collaboration, or penetration testing inquiry? Let's build something secure.

DIRECT DISPATCH PROTOCOL // 256-BIT ENCRYPTED
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