# Runtime\.si

[Runtime\.si on Hacklab](https://hacklab.so/org/runtimesi)

Startup · 3 people on Hacklab

## Links

- [Website](https://runtime.si/)
- [Y Combinator](https://www.ycombinator.com/companies/runtimesi)
- [LinkedIn](https://www.linkedin.com/company/runtime-yc-f26)
- [X](https://x.com/runtimesi)

## About

<!-- hacklab:yc-profile -->

## YC company profile

Real-time simulation infrastructure for robots

Runtime is building real-time simulation infrastructure for robots. We give robots a live simulation of their surroundings to guide every action.

- **YC batch:** Fall 2026
- **Team size:** 5
- **Location:** San Francisco
- **Country:** US
- **Status:** Active
- **Industry:** Industrials
- **Stage:** Early
- **Tags:** Robotics, Infrastructure, AI
- **YC partner:** Aaron Epstein

## Founders

### Chen Peng — Co-Founder

Co-founder, CEO at Runtime.si. Previously at Penn's GRASP and Penn Engineering working on model interpretability and brain foundation models. BA in Physics from UPenn.

[LinkedIn](https://www.linkedin.com/in/chen-peng-6737681bb) · [X](https://x.com/chennpeng)

### Yim Ying — Founder

Co-founder at Runtime.si. Full-stack robotics engineer focused on robotics productization, manipulation, and manufacturing.MechE @ Penn.

[LinkedIn](https://www.linkedin.com/in/qingyun-ying-46558235b?utm_source=share_via&utm_content=profile&utm_medium=member_ios)

### Liam Zhong — Founder/CTO

Co-founder & CTO at Runtime.si. Graduate student / Researcher at UPenn GRASP Lab Program, CV, Control, and RL. Reviewer and author for CVPR, ECCV, NeurIPS, etc. Robotics@Penn.

[LinkedIn](https://www.linkedin.com/in/ningze-zhong-a62917388/)

[Source: Y Combinator](https://www.ycombinator.com/companies/runtimesi) · Retrieved 2026-11-02. Company information is self-reported on YC.

## Current staff

- [Chen Peng](https://hacklab.so/chen-peng) — Co\-Founder (Present)
- [Liam Zhong](https://hacklab.so/liam-zhong) — Founder/CTO (Present)
- [Yim Ying](https://hacklab.so/yim-ying) — Founder (Present)

## Open jobs

- [Founding GTM](https://hacklab.so/jobs/a1489191-50f9-548d-9190-4eed91ee348a) — Internship · On\-site · San Francisco, CA, US · $6K \- $9K / monthly · 0\.25% \- 1\.00% equity
- [Founding Software Engineer, Robotics Infrastructure](https://hacklab.so/jobs/8f32fbf5-4b8e-5e4b-a428-dc041a4e0aae) — Internship · On\-site · San Francisco, CA, US · $6K \- $9K / monthly · 0\.25% \- 3\.00% equity
- [Electrical Engineer, Robotics](https://hacklab.so/jobs/8381bcfb-3802-56b6-915b-ae29d62df845) — Internship · On\-site · San Francisco, CA, US · $6K \- $9K / monthly · 0\.25% \- 3\.00% equity
- [Mechatronics Engineer](https://hacklab.so/jobs/4e124e52-7086-5917-a1c0-2752fc1c5163) — Internship · On\-site · San Francisco, CA, US · $6K \- $9K · 0\.25% \- 3\.00% equity