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Shinjae Kang

Programmer & Software Architect · Cileungsi, Bogor, Indonesia

Hi, I’m Shinjae Kang

I’m a programmer and software architect based in Cileungsi, Bogor, Indonesia. Since May 2026 I have been General Manager, AI Business at PT Fast Beauty Indonesia. Public writing and personal projects stay on zemna.net and GitHub.

The modoo-id GitHub organization holds Modoo Laravel/Vue SaaS projects I built. Modoo is a project name, not an employer.

I’ve lived and worked in Indonesia for more than 15 years: a Korean engineer operating in the Southeast Asian tech scene, connecting tools and business context across both worlds.

Selected experience

PeriodRole
2026.05 – presentPT Fast Beauty Indonesia — General Manager, AI Business
2021.09 – 2026.04PT STC Natural Indo — Marketing Manager
2012.04 – 2021.08PT HIT Global Indonesia — Purchasing / IT
2008.04 – 2012.03Websolus — software (water-resources SI, including Citarum DSS)
2004.11 – 2008.03TELDA Electronics — software (building automation / control)

Education: Young Hoon High School (1999); Dongyang Technical College, Electronic Commerce (2005); NILE, Bachelor of Computer Engineering (2007).

Professional focus

AreaWhat I care about
Software architectureBoundaries, maintainability, rollback paths, and systems that are still understandable six months later.
Web product engineeringLaravel, VueJS, Tailwind CSS, PHP, and Modoo Laravel/Vue SaaS projects behind real business software.
AI operationsAgent workflows, verification gates, and the difference between a demo and a production-adjacent system.
DevOps & automationCron jobs, CI/CD, artifact checks, and workflows that prove they worked.
Desktop and legacy systems.NET, C#, Windows utilities, serial communication tools, and older systems that still matter.
Regional contextKorea to Southeast Asia technology, teams, constraints, and opportunities.

Core stack

  • Backend / Web: Laravel, PHP
  • Frontend: VueJS, Tailwind CSS
  • Data: MySQL, PostgreSQL, MSSQL
  • Operations: DevOps, cron workflows, deployment checks
  • Laravel SaaS projects: listed on the Portfolio page
  • Desktop / Windows: .NET, C#, shell extensions
  • Mobile: Flutter
  • Automation / AI: agents, publishing pipelines, verification gates

What I build

I keep public tools under github.com/zemna. Modoo project repositories live under modoo-id as portfolio systems, not as a company brand.

See the curated list on the Portfolio page.

What this site is

  • A long-running personal blog about AI, software development, dev tooling, and operations
  • An English-first publication
  • A working lab for the zemnanet design system
  • A practical record of what I am testing, adopting, rejecting, and rebuilding

What this site is not

  • A company blog. The opinions here are mine.
  • A paid newsletter. No sponsors, no ads, no affiliate links.
  • A posting-everything firehose. Quality gates run on every post before it ships.

Where else to find me

Disclosure

Some posts on this site are drafted with AI assistance. The text, opinions, code samples, and final edits are mine. When AI assistance is more than mechanical, the post will say so in a note at the bottom.