01. About Me

Mark Lester Cagay's Portrait

Mark Lester Cagay

Cybersecurity Specialist, Full-Stack Developer & IoT Engineer

Specializing in Secure Architecture & Embedded Systems

I am a BSIT graduate specializing in cybersecurity, secure systems architecture, and web systems integration. My work spans the entire stack, from implementing secure communication protocols in C++ for smart IoT sensors to protecting high-performance database gateways using PostgreSQL and building fortified full-stack applications.

I thrive on auditing systems for vulnerabilities, configuring robust firewall rules and encryption policies, writing secure and clean firmware, and optimizing relational databases with strict access control lists to ensure that digital infrastructures remain resilient against threats.

April 2026

Graduated BSIT

Completed Bachelor of Science in Information Technology, specializing in full-stack architectures and systems integration.

4+ Core Specializations
3+ Production Projects
8+ Languages & Stacks