John Paul Caigas — IT student who loves building the logic behind the screen.

@mra1k3r0

Backend DeveloperIT Student

IT student who loves building the logic behind the screen.

See my workSay hello

01About

I'm an IT student specializing in backend development — the part of the web you don't see but absolutely need. I build server-side logic, APIs, and database systems that power real applications.

Currently sharpening my skills in PHP, Node.js, and database architecture. I believe clean code and solid systems matter more than flashy interfaces — but I can handle the frontend when it counts.

LocationPhilippines
EducationBS Information Technology
StatusOpen to opportunities
“First, solve the problem. Then, write the code.”
— John Johnson

02Journey

$ $ git log --oneline --graph

2019
b19c0de(origin/fundamentals)edu

Web Fundamentals

SIS BootCamp foundation: HTML, CSS, and JavaScript with small responsive projects.

2020
ts20be1(origin/ts-backend)exp

TypeScript-First Backend

Focused on Node.js + TypeScript, built FCA-based Facebook bots, and shipped API-first projects.

2021
nc2css1(origin/systems)edu

Systems & Discipline

Completed TESDA NC II (Computer Systems Servicing): hardware, troubleshooting, and networking fundamentals.

2022
it22csp(origin/college)edu

BSIT + Team Projects

Started BSIT at CSPC and moved into structured collaboration, better workflows, and team delivery.

2023
php23ap(origin/php-api)exp

PHP + API Expansion

Added PHP deeply for API deployment; improved MySQL design, auth flow, and production-ready structure.

now
HEAD(main)exp

Building & Shipping

Focused on shipping real backend systems with TypeScript, PHP, and databases.

03What I Do

I’m strongest on backends and APIs, comfortable owning full builds when the product needs it, and I lean hard into security, networking, and automation done right—not resume keywords, just what I actually like doing.

$
npx tsx watch src/server.ts

Backends I can own

I like being the person who makes the server side make sense—clear APIs, honest validation, and errors you can actually trace. I care that it still behaves when real traffic shows up, not only on my machine.

$
npm run dev

End-to-end products

When a build needs the whole picture, I’m fine carrying it—data layer, API, and UI wired together so it feels like one product. Fewer hand-offs, fewer “who owns this bug?” moments.

$
composer install && php -S localhost:8080

PHP when that’s the world you’re in

Lots of real sites still run on PHP, and I’m at home there—auth, APIs, and databases laid out so the next dev isn’t guessing. Practical beats clever.

$
npm audit --omit=dev

Security in how I think

Cybersec isn’t a sticker for me—I weigh threats early, sweat the boring stuff around secrets and permissions, and try to think like the person testing your inputs at 1 a.m.

$
curl -vI https://api.example.com/health

Networks & real-world reliability

I nerd out on how stuff actually talks—HTTP, TLS, DNS, proxies, containers—so it’s less “works on my Wi‑Fi” and more “we know why it broke.”

$
npx playwright test e2e/

Automation & data, without the sketchy part

I automate what’s tedious and pull structured data when it’s fair game—rate limits, robots.txt, and clear rules so you’re not building liability for a quick scrape.

$
docker compose up -d

Setups that don’t depend on one laptop

I’m picky about environments—Git, Docker, Linux boxes—because the best code is useless if nobody else can run it. I want shipping to feel boring in a good way.

04Projects

Unserious CM
#01Unserious CM

Unserious CM

A not-so-serious Cookie Manager Chrome extension where cookie management meets stand-up comedy.

TypeScriptChrome ExtensionTailwind CSS
GitHub
XSD Validator
#02XSD Validator

XSD Validator

Validate XML against XSD schemas—Express + Node.js API with a clean web UI.

Node.jsExpressXMLXSD
GitHub Open
Discrete Probability Calculator
#03Discrete Probability Calculator

Discrete Probability Calculator

Modern Java GUI app for computing Binomial, Poisson, Geometric & Hypergeometric distributions.

JavaSwingMath
GitHub
Portfolio Site
#04Portfolio Site

Portfolio Site

This very site — minimal PHP portfolio with particle text art, zero frameworks, dark theme.

PHPCSSCanvasVanilla JS

05Contact

Send me a message

Got a project, question, or just want to say hi? Fill out the form or reach me directly.