Haoran Yang

Materials Scientist - Optoelectronics and Semiconductors

Union City, CA, Usa

$70.00/hrEntry LevelInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Text

Top Task Types

Question Answering

Text Generation

Evaluation Rating

Freelancer Overview

Accomplished Materials Scientist (Ph.D.) and Process Engineer with over a decade of experience in high-tech R&D, now leveraging deep technical expertise as an AI Trainer and Subject Matter Expert (SME). I specialize in the creation, labeling, and evaluation of high-quality training data for Large Language Models (LLMs), specifically within the domains of Physics, Material Science, Chemistry, Chemical Engineering, and Electronics. My background combines rigorous academic research from Purdue and Tsinghua with industrial experience at STMicroelectronics and Apple, allowing me to provide nuanced, graduate-level technical oversight that ensures AI outputs meet the highest standards of scientific accuracy.

Entry LevelEnglishChinese Mandarin

Labeling Experience

AI Trainer / Material Science Intelligence Expert

Internal Proprietary ToolingTextQuestion AnsweringText Generation

Generating complex technical prompts and crafting detailed gold-standard responses for Reinforcement Learning from Human Feedback (RLHF). Ensuring that prompts and answers are not only accurate but also structured for optimal model performance.

2025 - 2025

Education

Purdue University

Doctor of Philosophy, Chemical Engineering

Doctor of Philosophy

2010 - 2014

Tsinghua University

Bachelor of Science, Materials Science and Engineering

Bachelor of Science

2005 - 2009

Work History

SiTime

Sr. Failure Analysis Engineer

Santa Clara

2025 - Present

STMicroelectronics

Materials R&D / Chemist Principal Engineer

Santa Clara

2019 - 2024