NetworkingFeatured
Campus VLAN Segmentation Lab
A segmented campus network design with VLANs, inter-VLAN routing, and ACLs, built and validated in a virtual lab.
Cisco IOSVLANOSPFACL
Code coming soon
Network Engineer · Cybersecurity · Software
Building secure systems. Connecting ideas.
I'm Sahan — a technology-focused student working across network engineering, cybersecurity, and software development, with a creative streak in design and technical illustration.
I'm the CEO & Co-Founder of
Hover a facet · move to tilt
Degree in progress
BSc Ethical Hacking & Network Security
Diploma
HND Network Engineering
Focus areas
Networks · Security · Software
Based in
Sri Lanka · UTC+5:30
01What I work with
Skills preview
Areas I actively study and practise — see the about page for the full breakdown.
Networking
- TCP/IP & Subnetting
- VLANs & Switching
- Routing (OSPF)
- Wi-Fi Fundamentals
- Packet Analysis
Cybersecurity
- Security Fundamentals
- Password Hygiene
- 2FA & Hardening
- Threat Modelling
- Ethical Hacking Study
Software
- TypeScript
- Next.js & React
- Node.js
- Python Scripting
- REST APIs
02Selected work
Featured projects
A few labs and builds that best show how I think and work.
WebFeatured
This Portfolio Website
This site — Next.js App Router, strict TypeScript, Tailwind, and motion design with a validated contact API.
Next.jsTypeScriptTailwind CSSFramer Motion
Code coming soon
Full-StackFeatured
Home-Lab Inventory Tracker
A small CRUD app tracking lab devices, firmware versions, and IP assignments for my home network.
Next.jsSQLitePrismaReact Hook Form
Code coming soon
03Notes & write-ups
Latest articles
Short, practical write-ups from labs and study sessions.
NetworkingSample
How I Plan a VLAN Layout Before Touching the CLI
The paper-first checklist I use for small VLAN designs: inventory, addressing, trunk map, and test cases.
6 min readRead
DevelopmentSample
Strict TypeScript Habits That Survived Contact With Real Code
Narrowing over casting, discriminated unions over flag soup, and treating every API response as untrusted.
5 min readRead
Have a lab, idea, or opportunity to discuss?
I'm always interested in networking labs, security study, and collaborative builds.
Get in touch