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
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PythonID Bot
A comprehensive Telegram bot for managing group members with profile verification, captcha challenges, and anti-spam protection.
Python Telegram Bot -
Solar System Explorer
An interactive 3D orrery simulation of the solar system with real-time planetary orbits and multilingual support.
Three.js JavaScript WebGL -
AI Councils
A multi-agent deliberation platform where five AI counselors with distinct perspectives collaborate to analyze complex problems.
AI Multi-Agent Web -
Rezha Tab Organizer
A browser extension to keep your tabs organized and your sanity intact.
JavaScript Web Extension
Featured
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Stop Using innerHTML: The New Firefox Feature That Kills XSS
5 min read webdevFirefox 148 just shipped the new Sanitizer API with setHTML(). Here's why you should stop using innerHTML today.
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Next Level Coding with Amp: Planning Before Prompting
6 min read aiMy experience using Amp, the frontier coding agent. It rewards structured planning and works best as a 'second brain' in your terminal.
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How I Built My Own AI News Anchor (Tech Watch)
4 min read automationI stopped doomscrolling and let an AI agent curate my tech news. Here's how I automated my information diet with OpenClaw and Node.js.
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Building a Telegram bot to babysit 24,000 developers
6 min read pythonHow I built PythonID-bot to manage the Indonesian Python community on Telegram.
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Why "Dumb" Agents Are Winning: The Case for Shell-First AI
5 min read ai-agentsSmart agents are great, but simple ones actually ship code. Why tools like Pi and OpenClaw beat complex LSP-based assistants.
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Reducing OpenClaw Heartbeat Token Usage
4 min read openclawRunning an AI agent 24/7 sounds cool until you see the token bill. Here's how to cut your heartbeat costs.
Recent Posts
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Upgrading to Astro 6: What Changed and Why It Matters
7 min read astroA 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.
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Demoware Is Killing Your AI Strategy
6 min read aiAI tools make it easy to build impressive demos. What happens when demoware becomes production code?
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The Power of an Accountability Buddy
5 min read productivityWhy going solo isn't always the best path to achieving your goals, and how an accountability buddy can double your success rate.
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Goodbye Date, Hello Temporal API
6 min read javascriptJavaScript's Date object was a copy of Java's broken java.util.Date, and we've been stuck with it for 30 years. The Temporal API is here to replace it.