1433 N.

Key Skills

Software

Label Studio

Scale AI

Appen

Doccano

CVAT

Top Subject Matter

Chinese-English RLHF

Annotation Domain Expertise

AI preference evaluation

Top Data Types

Text

Document

Top Task Types

RLHF

Classification

Freelancer Overview

Senior AI Data Labeler & LLM Trainer. Core strengths include Label Studio, Scale AI, and Appen. Education includes Bachelor of Science, Tsinghua University. AI-training focus includes data types such as Text and labeling workflows including RLHF and Classification.

Labeling Experience

Senior AI Data Labeler & LLM Trainer

Label StudioTextRLHF

Managed and executed over 15,000 high-quality annotated items for leading AI platforms, primarily using RLHF methods. Focused on Chinese-English preference ranking, instruction following, text evaluation, and red teaming. Maintained a 97%+ accuracy rate while exceeding daily quotas by 40%. • RLHF preference ranking and response evaluation • Daily output up to 800 items • Chinese-English bilingual annotation • Used LabelStudio, Scale AI, Appen, Doccano, CVAT, Excel, Google Sheets

2023 - Present

Data Annotation & Quality Control Specialist

Scale AITextClassification

Conducted large-scale Chinese text annotation, data cleaning, and quality assurance for AI data pipelines. Maintained high accuracy in high-volume tasks focused on classification and annotation. Supported data quality control throughout the annotation lifecycle. • Text classification and cleaning tasks • High-accuracy data annotation • Quality assurance for large datasets • Used Scale AI, Appen, LabelStudio, Excel, Google Sheets

2022 - 2023

Education

Work History