# Longfei Yun

> SWE @ Meta | Applied Scientist Intern @ Amazon | MSCS @ UCSD | B.E. @ Tsinghua

Location: Sunnyvale, California, United States
Profile: https://flows.cv/longfeiyun

## Work Experience
### Software Engineer @ Meta
Jan 2025 – Present | Menlo Park, California, United States
FB Feed Ranking.

### Research Assistant @ UC San Diego Computer Science and Engineering Department (CSE)
Jan 2024 – Present | San Diego, California, United States
- [EMNLP 25 Findings] Research on the Diversity Collapse of LLMs.

- [EMNLP 25 Findings] Research on Extremely Fine-grained Conditional Generation

### Applied Scientist @ Amazon
Jan 2024 – Jan 2024 | Sunnyvale, California, United States

### Research Assistant @ Halıcıoğlu Data Science Institute, UC San Diego
Jan 2023 – Jan 2024 | San Diego, California, United States
- Research on the tradeoff between training performance and inference cost for MoE (Mixture-of-Experts) models.

- [ICLR 2025] Research on long context scaling of LLMs.

### Research Assistant @ Tsinghua University
Jan 2022 – Jan 2023 | Beijing, China
- [Neurips 23] Research on occupancy perception for autonomous driving.


## Education
### Master's degree in Computer Science
UC San Diego

### Bachelor's degree in Computer Software Engineering
Tsinghua University


## Contact & Social
- LinkedIn: https://linkedin.com/in/longfei-yun-7a8715281
- Portfolio: https://scholar.google.com/citations?user=lOuw-MAAAAAJ&hl=en&oi=ao

---
Source: https://flows.cv/longfeiyun
JSON Resume: https://flows.cv/longfeiyun/resume.json
Last updated: 2026-04-11