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Co-founder · Punakawan Digital Scoring

Hi, I'mRizal Aji Purbadinata

I build digital scoring systems for pencak silat championships.

From athlete registration to scores that reach the audience screen in milliseconds. I design the architecture and write the code.

See my workAbout me

Selected work

Featured

Punakawan Digital Scoring

Real-time pencak silat scoring that keeps running without the internet.

A per-arena judging system that carries every judge's tap to the referee board and audience screen within milliseconds over the venue's local network, plus a championship registration website for team managers and organizers.

  • 32 msreal-time message between devices on the venue LAN
  • 0 errors857 taps from 10 parallel arenas in 20 seconds
  • 1,095 → 6queries per championship page after optimization
  • 427automated tests in the arena app
Read the case studyWebsite & registration

About me

I currently work full-time as a Software Developer at Universitas Sebelas Maret. Beyond that, I work where technology meets martial arts. During three years as CTO of Juara Silat, I learned first-hand what organizers, judges, and officials need in the arena.

I brought that experience to Punakawan Digital Scoring, a new brand I co-founded in mid-2026, focused on speed, fair judging, and simple field operations.

Journey

  1. Co-founder · Punakawan Digital Scoring

    2026 — present

    Architecture & development of the arena scoring system and the registration website.

  2. Software Developer · Universitas Sebelas Maret

    Full-time · present

    Building and maintaining web applications for the university.

  3. CTO · Juara Silat

    3 years

    Led technology for pencak silat scoring and championship management.

What I use every day

  • Laravel
  • PHP
  • Livewire
  • Vue 3
  • Inertia
  • Laravel Reverb
  • Tailwind CSS
  • MySQL
  • SQLite
  • GitHub Actions