Deren Lei
Research Engineer at Meta
Bellevue, Washington, United States
Summary
👤
Senior🎓
Top SchoolDeren Lei is a Research Engineer with 9 years of experience specializing in NLP and deep learning, currently working on core modeling for MetaAI/Llama. He has driven applied research and product-focused engineering at Microsoft’s Azure Cognitive Services—leading Responsible AI efforts for grounding and jailbreak detection and integrating small and large LLMs into low-latency services. Deren’s background includes academic NLP research with top-conference publications (e.g., EMNLP) on knowledge graph reasoning and reinforcement learning–based summarization, combined with hands-on deployment experience across copilot, conversational search, and clinical dialogue summarization. Comfortable spanning the research-to-production gap, he emphasizes efficient, real-world deep learning solutions that balance model quality and inference cost. Based in Bellevue, WA, he blends rigorous academic training (USC, UCSB) with industry-scale safety and relevance engineering for LLMs.
8 years of coding experience
8 years of employment as a software developer
Master of Science - MS Computer Science, Master of Science - MS Computer Science at University of Southern CaliforniaBachelor's degree Computer Science, Bachelor's degree Computer Science at UC Santa Barbara
Chinese, English
Github Skills (31)
arfoundation10
barracuda10
localize10
scene10
economy8
meta7
computer-vision7
object-detection7
meta-learning6
machine-learning4
rule4
reinforcement-learning4
nlp3
data-science3
graph3
Programming languages (5)
Github contributions (5)
derenlei/CSGO_Econ_AI
Mar 2020 - Oct 2020
Meta-learning for CS:GO economy strategy
Contributions:20 commits, 2 PRs, 17 pushes in 7 months
meta-learningeconomydata-sciencereinforcement-learningcs-go
derenlei/Unity_Detection2AR
Oct 2020 - Aug 2021
Localize 2D image object detection in 3D Scene with Yolo in Unity Barracuda and ARFoundation.
Contributions:1 review, 15 commits, 9 PRs in 10 months
3d-scenearfoundationimage-2dobject-detectioncomputer-vision
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