Available for internships & entry-level roles

VIPERSEC

JUNIOR PENETRATION TESTER · ETHICAL HACKER · SECURITY RESEARCHER

I document my cybersecurity journey through hands-on labs, penetration testing projects, CTF write-ups and continuous learning. My goal is to help organizations build stronger security by understanding how attackers think.

eJPT CertifiedCNSP CertifiedTop 4% TryHackMe129+ Rooms Completed
Hire Me View Projects Connect on LinkedIn
vipersec ~/portfolio
$whoami
>Shantanu Kakade
$role
>Junior Penetration Tester
$location
>Pune, Maharashtra, India
$certifications
>eJPT Certified
>CCNA Training — 7Mentor Institute
>RHCSA Training — 7Mentor Institute
$platforms
>TryHackMe
>Hack The Box
>PortSwigger
>VulnHub
$tryhackme --stats
>Top 4% Worldwide
>129+ Rooms Completed
>18 Badges Earned
$specialization
>Web Application Security
>Network Penetration Testing
>Linux Privilege Escalation
>Windows Privilege Escalation
>Active Directory
>OSINT
$favorite-tools
>Nmap · Burp Suite · Metasploit · FFUF
>Gobuster · Hydra · Wireshark · SQLMap
$current-goal
>Building practical offensive security skills
>Publishing write-ups
>Creating security tools
>Preparing for advanced pentesting certifications
$status
>Available for internships
>Open to junior penetration testing roles
>Always learning...
$
About

Curious by design, methodical by practice.

@viperseconline

I'm a Junior Penetration Tester focused on offensive security — building the practical muscle to find and fix vulnerabilities before real attackers do.

My focus areas are Web Application Security, Network Security, Linux, Active Directory and Privilege Escalation. I spend my nights on Capture The Flag challenges and my days reading source code, protocols and post-mortems.

I believe great security engineers are made by relentless practice — so I document every lab, every write-up and every tool I build, in public.

0+
Projects Completed
0+
Labs Solved
0+
Certifications
0+
Write-ups Published
Skills

A stack built for offensive security.

Tools, protocols and disciplines I use daily on labs and CTFs.

Operating Systems

Kali Linux90%
Linux88%
Windows75%

Networking

TCP/IP85%
DNS82%
HTTP / HTTPS90%
SSH / FTP80%

Web Security

OWASP Top 1088%
SQL Injection85%
XSS / CSRF / SSRF82%
Auth / IDOR / File Upload80%

Tools

Nmap · Burp Suite · Metasploit88%
Gobuster · FFUF · SQLMap84%
Hydra · John · Wireshark80%
Netcat · Nikto · WPScan78%

Programming

Python82%
Bash80%
JavaScript (basics)60%
Git85%
Certifications

Credentials backed by practice.

VerifiedFeatured
Featured Certification

eJPT — Junior Penetration Tester

Certified by INE Security

Candidate
Shantanu Kakade
Date Awarded
January 19, 2026
Credential ID
172101400
Status
Verified

Hands-on penetration testing certification focused on web application security, network penetration testing, enumeration, exploitation, privilege escalation, and professional reporting.

CertifiedFeatured
Featured Certification

CNSP — Certified Network Security Practitioner

Issued by The SecOps Group

Candidate
Shantanu Kakade
Date Awarded
25 November 2025
Certificate ID
10778397
Status
Certified

Practitioner-level certification validating hands-on knowledge of network security assessments, infrastructure penetration testing, common protocol attacks, and secure network defense.

Verification URL / PDF will be linked automatically once provided.

7Mentor Institute

CCNA

Training Completed

Completed CCNA training at 7Mentor Institute covering networking fundamentals, routing & switching, IPv4/IPv6, VLANs, subnetting, network security, and troubleshooting.

View Certificate
7Mentor Institute

RHCSA

Training Completed

Completed RHCSA training at 7Mentor Institute covering Red Hat Enterprise Linux administration, shell scripting, file systems, users & permissions, networking, system services, and security.

View Certificate
Top 4% Worldwide

TryHackMe

129+ completed rooms, 18 badges earned, Top 4% globally. Practical hands-on experience in Web Security, Linux, Windows, Active Directory, and Capture The Flag challenges.

View TryHackMe Profile
Active Learner

Hack The Box

Hands-on practice through Hack The Box labs and machines focused on penetration testing, enumeration, privilege escalation, web security, and Active Directory.

View HTB Profile
Projects

Tools, scripts and lab work.

Small, focused open-source utilities I build to sharpen my workflow.

Cybersecurity Portfolio

VIPERSEC Portfolio

A professional penetration testing portfolio built using React, TypeScript, Tailwind CSS, Framer Motion and Lovable. It showcases my certifications, TryHackMe profile, write-ups, projects, resources and cybersecurity journey.

ReactTypeScriptTailwind CSSFramer MotionLovable
Python Tool

SHAN IP Scanner

A Python TCP port scanner developed for network reconnaissance. Supports host discovery, banner grabbing, service detection and port scanning while learning socket programming and networking.

PythonSocketsTCP/IPNetworking
Bash Scripts

Linux Automation Toolkit

A collection of Bash scripts for Linux enumeration, system information gathering, automation and penetration testing practice.

BashLinuxAutomation
TryHackMe

TryHackMe Journey

Hands-on labs, practical penetration testing, and continuous learning through real-world cybersecurity challenges.

Top 4%
Username
VIPER12
India🇮🇳
Rank
Top 4%
Rooms
129+
Badges
18
Learning Focus
Web Application SecurityNetwork Penetration TestingLinux Privilege EscalationWindows Privilege EscalationActive DirectoryOSINT
Percentile
Top 4%
Global Ranking
And counting
129+
Rooms Completed
Skill milestones
18
Badges Earned
42-day streak
Practical
Hands-on Labs

Recent Learning

  1. Attacktive Directory
    2026-06-14
    Red Teaming

    Kerberoasting + AS-REP roasting end-to-end.

  2. Internal
    2026-06-02
    Offensive Pentesting

    Full AD chain: SMB → Jenkins RCE → LinPEAS → root.

  3. Retro
    2026-05-21
    Windows

    Chained CVE-2019-1388 UAC bypass for SYSTEM.

  4. Overpass 3 — Hosting
    2026-05-08
    Web + Linux

    Backup config leak → GPG key crack → sudo wildcard.

Skills Gained

NmapBurp SuiteMetasploitHydraGobusterFFUFSQLMapLinuxWindowsActive DirectoryWeb SecurityNetworking

SOC · Live Simulation

Global Cyber Threat Map

A stylised Security Operations Center view of the world. All connections shown are decorative simulations for portfolio purposes — not real threat intelligence.

STATUSMONITORING
VIPERSEC/SOC · v2.4
$ tail -f /var/log/soc.jsonl
Write-ups

Detailed walkthroughs from the trenches.

Machines, labs and challenges — with every step and pitfall documented.

TryHackMeEasy

Blue – TryHackMe Walkthrough

A complete walkthrough of the Blue room covering enumeration, EternalBlue (MS17-010) exploitation, Meterpreter usage, privilege escalation, and capturing the required flags while explaining the methodology used.

Published on Medium
#TryHackMe#Windows#MS17-010#EternalBlue#Metasploit#PrivilegeEscalation
TryHackMeEasy

Basic Pentesting – TryHackMe Walkthrough

A detailed walkthrough of the TryHackMe Basic Pentesting room covering reconnaissance, Nmap scanning, SMB enumeration, Hydra brute forcing, SSH access, privilege escalation, and lessons learned.

Published on Medium
#TryHackMe#Linux#Enumeration#SMB#Hydra#PrivilegeEscalation
VulnHubEasy

Basic Pentesting 1 – VulnHub Walkthrough

A complete penetration testing walkthrough of the Basic Pentesting 1 virtual machine covering reconnaissance, service enumeration, exploitation, privilege escalation, and obtaining root access.

Published on Medium
#VulnHub#Linux#PrivilegeEscalation#Enumeration#CTF
VulnHubEasy

Noob 1 – VulnHub Walkthrough

A beginner-friendly walkthrough of the Noob 1 virtual machine demonstrating reconnaissance, exploitation, privilege escalation, and methodology used to obtain root access.

Published on Medium
#VulnHub#Linux#Beginner#PrivilegeEscalation#CTF
Journey

From engineering to offensive security.

The path so far and the certifications ahead.

  • Foundation

    Mechanical Engineering

    Formal engineering background — structured problem-solving and systems thinking.

    Achieved
  • Pivot

    Cybersecurity

    Transitioned into offensive security, self-driven labs and continuous study.

    Achieved
  • Practice

    TryHackMe

    129+ rooms completed, Top 4% globally, hands-on Web, AD, Linux and CTF challenges.

    Achieved
  • 2026

    eJPT — INE Security

    Junior Penetration Tester. Practical black-box pentesting exam. Verified.

    Achieved
  • 2025

    CNSP — The SecOps Group

    Certified Network Security Practitioner. Focus on network attack surface.

    Achieved
  • In Progress

    CCNA — Networking

    Deepening the networking layer that underpins every real engagement.

    In Progress
  • Planned

    RHCSA — Linux

    System administration mastery for post-exploitation and hardening work.

    In Progress
  • Future

    PNPT

    Practical Network Penetration Tester — full end-to-end assessment.

    Planned
  • Future

    OSCP

    The industry benchmark. The long-term target on the journey.

    Planned
Blog

Notes from the field.

Thinking like an attacker: my first 100 boxes

Lessons learned after grinding TryHackMe and HTB — patterns, notes, and what actually stuck.

Read more

A practical enumeration checklist

The exact recon flow I run on every engagement, from Nmap to content discovery.

Read more

Burp Suite tips I wish I knew earlier

Session handling, match & replace, and turning Repeater into a real workflow.

Read more
Resume

Take my CV for a run.

Concise, one-page and up to date — with everything a recruiter or security lead needs.

Contact

Let's talk security.

Open to internships, junior roles, freelance engagements and collaboration.

Shantanu Kakade
Junior Penetration Tester
eJPT Certified CNSP Certified TryHackMe Top 4% 129+ Rooms Completed
Open to
InternshipsJunior Penetration TesterFreelance Projects
Status: available for new engagements

Response time typically within 24 hours. All communication is handled professionally and — when needed — encrypted with PGP.