About

I'm Serge Sysoev. I work commercial HVAC with Sheet Metal Workers Local 66 in Everett, WA. Before the sun comes up, I'm designing multi-agent AI architectures. After the jobsite, I'm trading CME futures. Three separate worlds — one operating principle: build real systems, test them in real conditions, and never ship anything you wouldn't use yourself.

Most people in tech have never held a wrench. Most people in construction have never written a line of code. I live in both worlds every day. On the jobsite, I install duct systems, fabricate sheet metal, and coordinate with crews on commercial HVAC projects. At home, I architect AI systems with dozens of autonomous agents, build trading tools in C#, and deploy bots that manage real field operations.

I started in civil engineering in Russia, where I built a construction company, a PVC window factory, a concrete block factory, and a building materials supply business. In 2016, I moved to the United States and started over from zero — first in residential construction, then HVAC. Within a year I had my own HVAC company. When COVID shut it down, I didn't just "join the union" — I entered the trade at the bottom and worked through every layer of it.

Gas pipe installer. Equipment installer. Testing and balancing technician. Calibration specialist. Then commercial sheet metal construction with Local 66. Four roles, each one deeper into how buildings actually work. That progression wasn't a detour — it was an education no classroom offers. When I build AI systems for construction, I'm not guessing what field crews need. I've been the field crew.

Working construction gave me something no CS degree can teach — an intolerance for systems that don't survive reality. Software engineers build for ideal users in ideal conditions. I build for a crew lead checking his phone between fitting runs at 6 AM in January. That filter — "would this actually work on a Monday morning jobsite?" — shapes everything I design.