About

I’m Francis Du. I work on data engineering and Agent / Data Agent development, write Rust, build open-source tools, and take photos when I am away from a terminal.

My background is mostly in data platforms, distributed systems, and query engines. I am also building a private Data Agent project, which is where much of my recent Agent engineering and evaluation work comes from.

Outside work, I spend most of my open-source time on wcode. I have also contributed to Apache DataFusion and DataFusion Python.

What I work on

• Data Engineering — I work on data platforms, distributed systems, and query-engine infrastructure.
• Agents & Data Agents — I have hands-on Agent development and evaluation experience and am currently building a private Data Agent project, with a focus on retrieval, tool use, orchestration, and reliability.
• Rust & wcode — wcode is the open-source project I maintain most actively, a local runtime and harness for coding agents.
• Open Source — I have contributed to Apache DataFusion and DataFusion Python. Other projects and experiments live on GitHub.
• Photography — Travel and everyday life, collected in the Gallery.

Get in touch

• GitHub — github.com/francis-du
• LinkedIn — linkedin.com/in/francis-du
• Twitter / X — @francis_run
• Telegram — @francisdu
• Email — francis@francis.run