About Me

I’m Oscar Callejas — a U.S. Marine veteran and computer science student focused on building reliable software and practical systems. I care about clear problem solving, clean design, and delivering work that’s useful in the real world.

Photo of Oscar Callejas

Snapshot

  • U.S. Marine veteran bringing discipline and perseverance to engineering
  • Currently studying Computer Science
  • Interests: web development, embedded systems (Arduino), and practical tooling
  • Comfortable with Jekyll, SCSS, JavaScript, and Git/GitHub

What I’m Working On

I’m building small projects to strengthen fundamentals — including an Arduino simulation project (MediBot) for medical supply delivery and motion-based victim detection in TinkerCAD. I’m also iterating on this site to improve performance, polish, and content.

Let’s Connect

Want to collaborate or learn more? Reach out anytime.