Hey, I'm Sameera Madushan.
I'm a software engineer based in Pannala, Sri Lanka. I'm a self-taught software developer, passionate about coding, cybersecurity, problem-solving, and continuous learning to build impactful software solutions.
Recent posts
Building a Tiny Operating System from Scratch
Building a small operating system from scratch while exploring how computers work at the lowest level.
May 16, 2026
End-to-End Encryption (E2EE): A Complete Guide
How end-to-end encryption works, why it matters, and the mathematics that makes it unbreakable.
April 27, 2026
Assembly 101: How Programs Speak to the Machine
A step-by-step guide to how assembly programs communicate with the CPU and OS to run simple tasks.
December 22, 2025
Diving Deep into Arrays
Explore how arrays work under the hood, uncovering the efficiency, flexibility, and trade offs that make them a cornerstone of programming.
September 28, 2025
