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About
Alex Xi is a principal engineer with experience in large language models and AI, having worked at Meta and ByteDance. He holds a PhD and is currently developing AI agent technology for the HVAC and trades sector.
CTO at NOSO LABSYC S25
Intro paths
Alex went through Y Combinator (Summer 2025) — any YC alum in your network can reach them through the YC community.
Their group partner at YC was Jon Xu, General Partner at Y Combinator — the partner who ran NOSO LABS's batch and knows the company first-hand. YC profile ↗
In turn, Alex can intro founders to NOSO LABS's investors below.
NOSO LABS's investors · 5
Co-founders at NOSO LABS
Frequently asked questions
- Who is Alex Xi?
- Alex Xi is a principal engineer with experience in large language models and AI, having worked at Meta and ByteDance. He holds a PhD and is currently developing AI agent technology for the HVAC and trades sector.
- Where does Alex Xi work?
- Alex Xi is CTO of NOSO LABS.
- What companies did Alex Xi found?
- Alex Xi founded NOSO LABS.
Founder mafias
Y Combinator mafia10,686
Also came through, then founded or led a company.
About this profile. Compiled from public sources — NOSO LABS's own website and public professional profiles — and summarised by Fundraising Fox; every fact is kept with where it came from. Spotted an error, or would rather not be listed? Email privacy@fundraisingfox.com · How we build profiles · Your rights