Manqing Liu
Research Engineer at Character.AI
Boston, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolManqing Liu is a research-driven software engineer and PhD candidate specializing in causal machine learning and AI safety, with eight years of experience bridging statistical health research and scalable ML systems. Currently a Teaching Fellow at Harvard, she teaches high-performance parallel programming (OpenMP, MPI, CUDA) and mentors projects optimizing LLM inference (vLLM, KV-cache, continuous batching, tensor parallelism). At Geodesic Research and the Cambridge AI Safety Hub she built evaluation frameworks and multi-GPU pipelines to detect pathological Chain-of-Thought behaviors like post-hoc rationalization and steganographic encoding. Her background in biostatistics and epidemiology informs a rigorous, measurement-first approach to model evaluation and alignment. Known among peers as a Junior Fellow at Harvard, she combines deep academic training with hands-on engineering—shipping open-source tooling for multi-GPU training and inference optimization. Colleagues note she often frames safety problems through causal questions, revealing subtle failure modes that standard benchmarks miss.
8 years of coding experience
3 years of employment as a software developer
Doctor of Philosophy - PhD, Causal Machine Learning, Doctor of Philosophy - PhD, Causal Machine Learning at Harvard UniversityMaster of Health Science (MHS), Epidemiology, Master of Health Science (MHS), Epidemiology at Johns Hopkins Bloomberg School of Public HealthPost-Baccalaureate Studies, Post-Baccalaureate Studies at University of Pennsylvania
Github Skills (44)
slurm10
seq10
sequencing10
pipeline10
bioinformatics10
hyperparameter-tuning10
genomics10
job-queue10
job-scheduler9
supercomputer9
cloud-computing9
spot-instances9
distributed-training9
cost-optimization9
machine-learning9
Programming languages (5)
Github contributions (5)
lhqing/mouse_brain_2020
Mar 2020 - Mar 2020
Contributions:5 commits, 3 pushes, 1 branch in 1 day
lhqing/wmb-browser
Apr 2023 - Oct 2024
Contributions:1 release, 8 PRs, 49 pushes in 1 year 6 months
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