2x founder

David Yang

Founding Maingen (YC S26) | Industrial Simulations for RL

Founder

2026Founder· Idler (YC S25)

Founder · since 2026

Company

Idler (YC S25)

Role

Founding Engineer

Stage

—

no public source

Raised

—

no public source

Based

San Francisco, CA

Founder / co-founder — the company's markEmployee / research role

Profile coverage5 of 7 · missing posts, contact

Maingen

RL environments for industrial operations

Experience

Career

Maingen (YC S26)
Founder
Founder · San Francisco, CA · 2026 – Present
2026
Idler (YC S25)
Founder
Founding Engineer · San Francisco, CA · 2026
2026
University of Pennsylvania
Teaching Assistant · Philadelphia, PA · 2025
2025
Amazon
AI Engineer · Bellevue, Washington, United States · 2025
2025
Reticular (YC F24)
Machine Learning Engineer · San Francisco, CA · 2024 – 2025
2024
University of Pennsylvania
Undergraduate Research Assistant · Philadelphia, PA · 2024
2024
Nobias Therapeutics
Machine Learning Engineer · Mountain View, CA · 2024
2024
Scale AI
Generative AI Intern · 2024
2024

CTO of Maingen (S26). Prev. Idler (S25), Scale AI, Reticular (F24), and Amazon. Cited by Anthropic for ICLR2025 mech-interp paper.