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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.

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
Cuan
Full-Stack

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

ReactTypeScriptFinanceAnalytics
YuChat
LLM / AI

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

ReactLLMMCPSSE
Ngakak
LLM / AI

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

ReactGPT-4 VisionFunction Calling
SAT Simulation
Learning

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

ReactKaTeXEducation
Belajar SQL
Analytics

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

SQLDatabaseYouTube
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.