<Cyber />
PORTFOLIO 2026

Thieveshkar
Kalaichelvan

Merging Defense with Architecture.

Final Year Cybersecurity Undergraduate & SOC Intern at Connex IT. I actively monitor corporate threats, specialize in advanced incident response, and build resilient systems.

EDR / XDR SIEM Cortex Microsoft Defender Kali Linux Splunk
01. PROFILE

The Defender
& The Builder

I always knew my future was in IT, I just didn't realize how multifaceted that journey would be. My path began in Graphic Design, evolved into Web Development at Infinitystore, and has now reached my true target: Cybersecurity.

Currently, I work as a SOC Intern at Connex IT, focusing on active threat monitoring, EDR/XDR analysis, and incident response, whilst maintaining a First Class average in my Cybersecurity degree at APIIT (Staffordshire University UK).

Get In Touch

Sec

  • EDR & XDR
  • SIEM
  • Cortex
  • Microsoft Defender
  • Sekoia
  • Kali Linux
  • Splunk

Dev

  • Python
  • PHP
  • JS
  • SQL
  • WordPress
  • Wix
  • AWS (EC2)
  • Cloudflare

Workflow

  • Git/GitHub
  • Jira (Agile)
  • Slack
  • Adobe Creative Cloud
02. EDUCATION

Education

Bachelor's degree, Cyber security

University of Staffordshire
Mar 2024 - Dec 2027
  • Status: Started my final (3rd) year of BSc (Hons) Cyber Security after completing 2nd Year with an overall First Class.
  • Activities: Participating Member of APIIT Full Stack Computer Society.
  • 1st Year: Software Development and Application Modeling (First Class), Web Development and Operating system (First Class), Networking Concepts and Cyber Security (First Class), Digital Technologies (Second Class).
  • 2nd Year: Ethical Hacking (First Class), Cyber Security (First Class), Commercial Computing (First Class), Cyber Operations and Network Security (Second Class).
  • 3rd Year (Ongoing): Final Year Project, IT Infrastructure Security, Advanced Topics in Cyber Security, Operating Systems Internals and Biometrics.
03. CAREER

Experience

Security Operations Center (SOC) Intern

Connex Information Technologies • Sri Lanka (On-site)
Mar 2026 - Present
  • Undertaking a professional internship within the Security Operations Center (SOC), focusing on hands-on exposure to corporate cybersecurity operations.
  • Active threat monitoring and collaborative incident response to support organizational growth and maintain security integrity.

Web Developer

Infinitystore • Colombo, Sri Lanka
May 2025 - Apr 2026
  • Core Development: Built the main Infinitystore site by creating a custom child theme to ensure tailored functionality and scalable design.
  • Deployment & Hosting: Managed domain/hosting setup via Hostinger, SSL configuration, and DNS management.
  • Cloudflare Security: Configured Advanced DNS, CDN caching, DDoS protection, and strict SSL/TLS policies.
  • Sub-Project - Perfumed.lk (Nov 2025 - Apr 2026): Set up and customized the Eldy theme to align with business requirements for an additional brand under the company.

Web Development Intern

Infinitystore
Nov 2024 - Apr 2025
  • E-Commerce Rebuild: Led design/dev of responsive site using WordPress/WooCommerce.
  • Custom UI/UX: Built custom mobile navigation, dynamic cart badges, and optimized checkout flows.
  • Payment Integration: Integrated Koko, Mintpay, Payz, PayHere, and SPayment gateways.
  • Cloud Infra: Managed AWS EC2 instances for staging and live production.
  • Agile: Workflow management via Jira and Slack.
04. WORK

Featured Projects

Offensive Security & Forensics

Privilege escalation via kernel exploit and deep digital forensics using Volatility and Splunk.

Kali Volatility Splunk

RootQuest CTF Box

Built a multi-stage exploitation VM with 10 challenges across Web, Crypto, Network, and Forensics.

CTF Dev VirtualBox Apache Crypto

Threat Analysis & Sim Lab

Analyzed DDoS and SQLi threats, defined protection protocols, and simulated attacks with IDS validation.

Blue Team DDoS Analysis Snort/IDS

Ethical Hacking Portfolio

Discovered critical vulnerabilities, executed attack simulations, and documented academic countermeasures.

Metasploit Nmap Nessus

Network Infrastructure

Secure network design for Campus ABC utilizing VLAN segmentation, RIP routing, and HSRP redundancy.

Packet Tracer VLAN Cisco

Infinitystore E-Commerce

Designed and developed a fully responsive e-commerce platform by creating a custom child theme using WordPress, Elementor, and WooCommerce.

WordPress PHP Child Theme AWS

Perfumed.lk E-Commerce

Set up and customized the Eldy theme to align with specific business requirements for an emerging fragrance brand under Infinitystore.

WordPress Eldy Theme E-Commerce

E-Police Lanka Platform

Digital services platform for Sri Lanka Police featuring online complaints, appointments, and traffic fine payments.

React.js Node.js PostgreSQL Sec

Python Portfolio

Collection of Python programs including financial calculators, tax systems, and library management tools.

Python Automation Data

Tech Gadgets Hub

Responsive website showcasing latest tech gadgets with intuitive navigation and multimedia.

Wix Web Design UI/UX

Groceries Supermarket

Dynamic web app for a supermarket featuring product categorization, order placement, and payments.

HTML/CSS JS JSON
05. ACHIEVEMENTS

Certificates

Introduction to SecOps

Palo Alto Networks

Cortex Cloud

Palo Alto Networks

Cortex XQL

Palo Alto Networks

Cloud Computing Core Concepts

LinkedIn

Human Centric Cyber Security

Macquarie University

Advent Of Cyber 2025

TryHackMe

Burp Suite Essential Training

LinkedIn

Model Context Protocol

Hugging Face

Gemini Certified Student

Google

Lightweight AI with SLMs

LinkedIn

Vuln Scanner Project

LinkedIn

Cybersecurity Awareness: AI

LinkedIn

Log Analysis Foundations

Red Team Leaders

Running LLMs Locally

LinkedIn

OWASP Top 10

LinkedIn

Multimodal Prompting

LinkedIn

CompTIA A+ Practice

LinkedIn

Small Language Models

LinkedIn

AI-Driven Cyber Analyst

LinkedIn

PMI Agile Prep

LinkedIn

DesignHive Participant

Surge Global

Threat Landscape 2.0

Fortinet

Intro to Cybersecurity

Cisco

Packet Tracer Intro

Cisco

Python Essentials

Cisco