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Hang

Hang

AI Data Annotation Specialist - Conversational AI Systems

China flagHangzhou, China
$15.00/hrExpertInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

TextText

Top Task Types

Evaluation Rating
Fine Tuning
Prompt Response Writing SFT
Question Answering

Freelancer Overview

I am an AI data annotation and dataset development specialist with hands-on experience in building, curating, and refining high-quality training data for advanced AI models. My work spans creating and evaluating conversational datasets for large language models, annotating dialogue to ensure natural and contextually appropriate responses, and developing challenging benchmark datasets in computer science and mathematics to rigorously test AI reasoning. I have contributed to audio data processing and fine-tuning ASR models for Chinese speech recognition, as well as collaborating with cross-functional teams to establish annotation guidelines and quality standards. My technical toolkit includes Python, C++, PyTorch, TensorFlow, and a deep understanding of domains such as computer vision, NLP, and complex problem-solving. I am passionate about ensuring the accuracy, consistency, and impact of training data to drive meaningful improvements in AI performance.

ExpertEnglishChinese Mandarin

Labeling Experience

Prompt Generation

Internal Proprietary ToolingTextPrompt Response Writing SFT
authored exceptionally difficult problems in advanced algorithms and mathematics to benchmark AI reasoning capabilities.

authored exceptionally difficult problems in advanced algorithms and mathematics to benchmark AI reasoning capabilities.

2025

Turing.com

Internal Proprietary ToolingTextEvaluation Rating
I defined comprehensive evaluation criteria and assessed models on factual accuracy and reasoning, directly mirroring the responsibilities of this role.

I defined comprehensive evaluation criteria and assessed models on factual accuracy and reasoning, directly mirroring the responsibilities of this role.

2025

Education

U

University of Missouri-Kansas City

Doctor of Philosophy, Computer Science

Doctor of Philosophy
2025 - 2029
M

Monash University

Master of Artificial Intelligence, Artificial Intelligence

Master of Artificial Intelligence
2023 - 2025

Work History

C

CrestDigitalMedia

AI Intern

Shanghai
2025 - 2025