NEWMilestone
My cybersecurity portfolio is now live
Explore my Python security projects, download my CV and get in touch. I'm currently studying for my HND in Cybersecurity and working as a Cybersecurity Intern.
Cybersecurity student building practical security tools.
I'm Nirwan, 22, studying cybersecurity in Sri Lanka. I learn by building: network scanners, IP intelligence and OSINT tools in Python, and clean, secure web interfaces.
EducationHND in Cybersecurity, ESOFT Metro Campus
Current roleCybersecurity Intern
Open source5 public security projects on GitHub
Primary languagePython
About me
Curious by nature, security-minded by habit
My name is Nirwan Geeth Kaweeshwara. I'm 22 and studying cybersecurity in Sri Lanka, currently working as a Cybersecurity Intern while completing my HND at ESOFT Metro Campus.
I learn by building. My GitHub is a collection of Python tools for IP tracking, network discovery, port scanning, payload generation and OSINT, made for education and lab practice. I also design and develop responsive websites with HTML, CSS, JavaScript and Bootstrap, and I try to apply a security-first mindset to every one of them.
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Build to learn. Every concept I study becomes a small working tool.
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Security by default. Validate input, minimise exposure and think like an attacker.
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Ethical and educational. Everything I publish is for learning and authorised testing only.
NameNirwan Geeth Kaweeshwara
Age22
LocationSri Lanka
StudyingCybersecurity
RoleCybersecurity Intern
Focus areas
What I work on
Network security
Host discovery, port scanning and service enumeration to understand an attack surface.
Offensive security
Ethical hacking practice, CTF-style challenges and payload generation in lab environments.
OSINT
Collecting and correlating publicly available information about IPs and online profiles.
Security tooling
Turning techniques into reusable command-line and GUI tools with Python.
Secure web development
Responsive interfaces with HTML, CSS, JavaScript and Bootstrap, built with security in mind.
Continuous learning
Studying networking, cryptography and defensive practice alongside hands-on internship work.
PythonJavaScriptHTML / CSSBootstrapGit & GitHubLinux
Projects
Selected work
Open-source tools from my GitHub, created for educational purposes only.
ip_tracker
Retrieves information about an IP address and opens the target location on an interactive map.
Python · ★ 8View ↗
GhostProfile
OSINT-oriented tool for profile reconnaissance from publicly available information.
Python · ★ 5View ↗
Net-Hunter
Network hunting utility for discovering and inspecting hosts.
Python · ★ 3View ↗
port_scanner
Port scanner for identifying open ports and exposed services on a target.
Python · ★ 2View ↗
payload_generator_GUI
Graphical payload generator for penetration-testing practice in controlled labs.
Python · ★ 2View ↗
More on GitHub
Follow along as I keep building, breaking and learning.
All repositoriesView ↗
Latest news
Latest update
Experience
Work and education
Present
Cybersecurity Intern
Applying security fundamentals in a working environment alongside experienced professionals.
Ongoing
HND in Cybersecurity, ESOFT Metro Campus
Coursework in networking, ethical hacking, cryptography and secure systems.
Self-directed
Open-source security tools
Designing, building and documenting Python projects published on GitHub.
Certifications
Education & credentials
ESOFT Metro Campus
HND in Cybersecurity
In progress
Professional certifications
More credentials coming soon
PlannedContact
Let's talk security
Open to internship opportunities, collaboration and CTF teams. The fastest way to reach me is email.