David Yang is Co-Founder and CTO at Maingen (YC S26), an AI-native platform for solar operations and maintenance, bringing trustworthy AI and data systems to the clean energy sector.

David studied at the University of Pennsylvania and built expertise as a published AI Safety researcher focused on trustworthy AI and reliable data systems.

David co-founded Maingen alongside Phillip Yan, a childhood rival turned partner, having competed against each other in the DOE-sponsored NJ Science Bowl before reuniting to build in the energy space.

At Maingen, David leads all technical development, architecting AI systems that help solar O&M teams and asset owners prioritize maintenance work and stay audit-ready without manual data reconciliation.

Maingen, backed by Y Combinator (S26), targets a $5 trillion industrial operations market, enabling solar portfolio owners to unify fragmented alarms, tickets, warranties, and compliance data in one AI-native platform.