Professional résumé

Jinghua Yao, Ph.D.

Principal Applied Scientist · Generative AI & Machine Learning

San Jose, Californiajinghuayao AT gmail DOT comGitHub ↗

Read my full résumé below. A PDF copy is available on request.

Professional summary

Applied scientist with experience at Microsoft, Apple, and Samsung, combining a Ph.D. in mathematics with hands-on development of enterprise AI systems. Expertise spans LLM agents, distributed fine-tuning, multimodal learning, NLP, time-series forecasting, and computer vision. Track record of architecting applications, automating operational workflows, and translating mathematical modeling into practical machine learning solutions.

Technical expertise

Generative AI
LLM agents, LLM/VLM fine-tuning, transformers, prompt engineering, document Q&A, summarization, multimodal understanding, embeddings
Machine learning
NLP, sentiment analysis, forecasting, anomaly detection, CNNs, ensemble methods, statistical modeling, optimization
Engineering
Python, PySpark, C#, TypeScript, Go, scikit-learn, Docker, AWS, Amazon S3, Splunk, Git, Streamlit, Gradio

Professional experience

Microsoft

Jul 2025 – Present

Principal Applied Scientist · California

  • Develop LLM agent workflows involving memory, reasoning, actions, and reflection for AI applications.
  • Develop presentation-generation workflows and evaluate outputs for AI applications.

Apple

May 2020 – Jun 2025

Senior Machine Learning Engineer · California

  • Architected and implemented visual understanding with late interaction for enterprise applications.
  • Developed distributed fine-tuning workflows for LLMs and vision-language models, including Mistral, Florence-2, Phi-3.5, and Molmo, supporting embedding, Apple Support, captioning, and generative AI applications.
  • Built enterprise LLM applications for customer sentiment analysis, contextual Q&A, document analysis, and summarization, improving feedback resolution and reducing labor and device costs.
  • Architected and implemented automated survey-health reporting using Splunk, Amazon S3, anomaly detection, and email notifications, replacing manual team workflows.
  • Built time-series forecasting, trend analysis, and anomaly detection systems for call centers and survey services; supported improvements in call-answer rates.
  • Developed transformer-based sentiment analysis and classification for customer comments.
  • Delivered ML and AI technical lectures as a main contributor to a series of 32+ one-hour sessions on modeling and algorithms.

Samsung Display American Lab

Mar 2019 – May 2020

Staff Machine Learning Engineer · San Jose, California

  • Led problem formulation and development of a display-defect detection and classification system used in products.
  • Combined convolutional neural networks, dimensionality reduction, and classical ML using approximately 800 MAP and TEM images; developed a product-used classification solution.

Research & academic experience

Kent State University

Sep 2016 – Sep 2017

Research Scholar, Department of Mathematics · Kent, Ohio

The University of Iowa

Aug 2013 – Jan 2016

Visiting Assistant Professor, Department of Mathematics · Iowa City, Iowa

Research in nonlinear analysis, partial differential equations, dynamical systems, and variational methods, with journal publications in Physica D, Journal of Differential Equations, and Communications in Mathematical Sciences.

Selected publications

Journal publications ↗

Education

Ph.D. in MathematicsIndiana University Bloomington, USA
Master’s in MathematicsLanzhou University, China
Bachelor’s in MathematicsLanzhou University, China

Professional service & recognition

Invited reviewer for Mathematical Reviews, American Mathematical Society; journal referee for Scientific Reports, Journal of Mathematical Analysis and Applications, and other mathematical journals.

National Prize and Provincial Special Prize, National Mathematical Modeling Contest, 2004.

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