Portfolio 2026

Systems-oriented CS student building reliable software from UI to low-level debugging.

I focus on architecture, performance, and technical problem-solving. My work spans full-stack web apps, hardware protocol reverse-engineering, and custom JavaFX game logic.

View Projects Download Resume Contact Me

Open to job opportunities.

Featured Project

Teevolution Hub

A modern desktop control centre & custom driver for Teevolution gaming peripherals (Terra Pro XD9), featuring real-time telemetry, reverse-engineered HID protocols, and profile management.

View Get in touch

About

Computer Science student focused on building maintainable systems and solving technical problems under constraints. I enjoy understanding how software works under the hood and translating that into practical, user-facing solutions.

Focus Areas

  • Clean architecture and maintainable systems
  • Performance and low-level debugging
  • Solving complex technical problems

Experience Snapshot

  • Mobile App Developer Intern at Agmo Tech (Apr 2026 – Aug 2026)
  • Freelance Graphic Designer (2021 – 2024)
  • Spec-Driven Agentic Engineering & AI-augmented software workflows
  • Optimized WebP/SVG assets and high-performance frontend interfaces

Projects

Selected work that shows my approach to UI and full-stack logic.

PHP MySQL Tailwind

HydroTracker

Built a responsive PHP + MySQL hydration tracker with auth, personalized goals, streaks, and a leaderboard.

View Repo Request Demo
Node.js WebHID Electron

Teevolution Hub

Reverse-engineered proprietary 16-byte WebHID protocols to build a desktop control center and event-driven driver for the Terra Pro XD9.

View Repo Driver
Java JavaFX Game Dev

JavaFX 2D Game Engine

Developed a JavaFX 2D engine prototype with modular structure and custom collision logic for controllable gameplay behavior.

View Repo

Skills

A mix of backend, frontend, and UI work.

Languages

Python JavaScript TypeScript Dart Java C C++ PHP HTML/CSS Bash

Frameworks & Tech

Node.js Flutter Electron Next.js Tailwind Django Git

Systems & AI

Agentic AI MCP WebHID Hardware RE MySQL RDBMS

Creative & 3D

Adobe Suite Figma UI/UX Blender 3D Revit Video Editing

Languages

Bahasa Indonesia C1
English C1
Bahasa Melayu C1
Chinese B1
Japanese A2

Contact

Let us build something together. Reach me here:

darrenfj@proton.me GitHub Resume