PERSONAL SITE OF YUDOPR

I build pipelines, ship products, and write about what breaks along the way.

Data engineer with 7+ years of experience building end-to-end data pipelines and full-stack applications. I design APIs, manage infrastructure, and explore LLM-powered tools — from RAG and function calling to MCP integrations. Currently building a personal ecosystem of apps that combine data engineering with AI.

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Independent work

Things I've built

Side projects where I explore data engineering, LLM applications, and education.

Yupi

Full-Stack

Multi-tenant API backend powering my entire app ecosystem. FastAPI, PostgreSQL + pgvector, JWT auth, embedded MCP server.

PythonFastAPIPostgreSQLMCP

Code

Cuan

Full-Stack

Personal finance manager with transaction tracking, multi-account support, and financial analytics dashboards.

ReactTypeScriptFinanceAnalytics

Demo Code

YuChat

LLM / AI

AI chat app powered by MiMo LLM with multi-MCP tool execution, SSE streaming, and structured data visualization.

ReactLLMMCPSSE

Demo Code

Ngakak

LLM / AI

AI-powered bill splitter using GPT-4 Vision for receipt parsing and LLM for fair cost calculation.

ReactGPT-4 VisionFunction Calling

Demo Code

SAT Simulation

Learning

Digital SAT math exam simulator with KaTeX rendering, PDF viewer, and session recovery.

ReactKaTeXEducation

Demo Code

Belajar SQL

Analytics

Comprehensive SQL tutorial series on YouTube with practical exercises for beginners.

SQLDatabaseYouTube

Code

Let's connect

Got a data challenge?

Whether you want to collaborate or just chat about data engineering — I'd love to hear from you.

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Send me an email