Andrew Mao
Machine Learning Engineer at Apple
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolAndrew Mao is a machine learning engineer based in San Francisco with nine years of experience building production-grade ML and distributed systems across industry and academia. He specializes in generative AI and NLP, with a strong track record deploying billion-scale training pipelines, data-quality/search infrastructure, and high-performance model serving using PyTorch DDP/FSDP, FAISS, and vLLM. His background spans fintech quant systems, large-scale backend services, and research publications in QA and human-AI collaboration, enabling him to bridge research and production reliably. At Leidos he built red‑teaming environments and automated attack/defense tooling for LLMs and agents, and at Apple he focuses on GenAI data infrastructure for images and video. He brings hands-on experience with fine-tuning methods (LoRA, DPO), retrieval-augmented systems, agent harnesses, and adaptive attacks—skills that make him equally comfortable optimizing model training and probing model vulnerabilities. Notably, his career combines live trading-critical system engineering with academic NLP research, giving him a rare mix of performance-driven engineering and rigorous evaluation skills.
9 years of coding experience
7 years of employment as a software developer
Richard Montgomery High SchoolMaster's degree, Computer Science, Master's degree, Computer Science at University of Maryland
English, Chinese
Github Skills (82)
reference-implementation9
segmentation9
python8
deep-learning8
gpu8
machine-learning8
csv-import7
servo7
grovepi7
modular7
computer-vision7
object-detection7
grove7
beaglebone-black6
neural-network6
Programming languages (9)
Github contributions (5)
Maosef/cheaters_quizbowl
May 2020 - Mar 2022
An interface for question answering with a search engine.
Contributions:8 PRs, 32 pushes, 2 branches in 1 year 9 months
questionpythonsearch-enginequestion-answeringanswering
Maosef/Quadratic-Sieve
Jul 2017 - Aug 2018
Contributions:8 commits, 6 pushes, 1 branch in 1 year 1 month
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