Rezha Julio
Data Engineer • Jakarta, Indonesia
rezha@jakarta:~$abusing computers for fun & profit▍
Data Engineer with 11+ years of experience building large-scale data pipelines, streaming systems, and data platforms at companies like Gojek and Traveloka — processing petabytes of data daily. I tinker with Python, DevOps, and open-source projects, and co-organize PyCon Indonesia and PythonID meetups.
Recent Projects
PythonID Bot
A comprehensive Telegram bot for managing group members with profile verification, captcha challenges, and anti-spam protection.
PythonTelegramBotSolar System Explorer
An interactive 3D orrery simulation of the solar system with real-time planetary orbits and multilingual support.
Three.jsJavaScriptWebGLAI Councils
A multi-agent deliberation platform where five AI counselors with distinct perspectives collaborate to analyze complex problems.
AIMulti-AgentWebRezha Tab Organizer
A browser extension to keep your tabs organized and your sanity intact.
JavaScriptWeb Extension
Featured
Stop Using innerHTML: The New Firefox Feature That Kills XSS
5 min readwebdevFirefox 148 just shipped the new Sanitizer API with setHTML(). Here's why you should stop using innerHTML today.
Next Level Coding with Amp: Planning Before Prompting
6 min readaiMy experience using Amp, the frontier coding agent. It rewards structured planning and works best as a 'second brain' in your terminal.
How I Built My Own AI News Anchor (Tech Watch)
4 min readautomationI stopped doomscrolling and let an AI agent curate my tech news. Here's how I automated my information diet with OpenClaw and Node.js.
Building a Telegram bot to babysit 24,000 developers
6 min readpythonHow I built PythonID-bot to manage the Indonesian Python community on Telegram.
Why "Dumb" Agents Are Winning: The Case for Shell-First AI
5 min readai-agentsSmart agents are great, but simple ones actually ship code. Why tools like Pi and OpenClaw beat complex LSP-based assistants.
Reducing OpenClaw Heartbeat Token Usage
4 min readopenclawRunning an AI agent 24/7 sounds cool until you see the token bill. Here's how to cut your heartbeat costs.
Recent Posts
Why I Am Leaving Duolingo
6 min readpersonalThe subscription was cancelled last month. Today the app gets uninstalled. Here's why the streak habit stopped being worth my time.
Upgrading to Astro 6: What Changed and Why It Matters
7 min readastroA practical walkthrough of upgrading an AstroPaper blog from Astro 5 to Astro 6, covering Vite 7, Zod 4, the stable fonts API, and every breaking change I ran into along the way.
Demoware Is Killing Your AI Strategy
6 min readaiAI tools make it easy to build impressive demos. What happens when demoware becomes production code?
The Power of an Accountability Buddy
5 min readproductivityWhy going solo isn't always the best path to achieving your goals, and how an accountability buddy can double your success rate.