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.
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
-
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.
-
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
-
Upgrading four PostgreSQL instances to 18.2 in Docker
6 min read postgresqlI upgraded Miniflux, Invidious, a Django app, and Mastodon from PostgreSQL 15/17 to 18.2. Every single one broke in a different way.
-
4 Root Causes Hiding Behind One Airflow Error
6 min read airflowA debugging session that started with one Airflow error and uncovered four cascading failures across Docker images, Kubernetes caching, namespace boundaries, and Python string iteration.
-
Chasing a Transitive Dependency Vulnerability
3 min read securityHow a vulnerability in fast-xml-parser affected my blog through @astrojs/rss, and why transitive dependencies are quietly terrifying.
-
Managing DNS as Code with DNSControl
9 min read dnsHow I stopped editing DNS records in web UIs and started versioning them in Git. Includes fixing Porkbun provider quirks and handling ACME challenges.