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Key Skills

Software

Img Lab

Mighty AI

Other

Top Subject Matter

move

ai

web3

Top Data Types

Image

Audio

Video

Top Task Types

Text Generation

Question Answering

Freelancer Overview

Wei Lianzheng AI Data Training Specialist | Data Annotator | QA Specialist Location: Chongqing / Beijing, China (Open to Relocation) Phone: +66 090 226 6888 | Email: [email protected] --- Professional Summary Detail-oriented AI Data Training Specialist with hands-on experience in data annotation, quality assurance, dataset cleaning, and annotation team management. Skilled in designing annotation guidelines, ensuring label consistency, and supporting LLM/AIGC training pipelines. Proven ability to lead small teams, meet project deadlines, and deliver high-quality training data at scale. Seeking Data Annotator, Data QA Specialist, or AI Training Coordinator roles. --- AI Data Training & Project Experience AI Data Training Specialist | Freelance / Project-Based | 2022 – Present · Data Annotation & Labeling: Annotated and labeled text, image, and video datasets for supervised learning (classification, object detection, NER, sentiment analysis). · Quality Assurance (QA): Performed cross-validation and consistency checks on annotated data; reduced error rate and improved data quality. · Guideline Design: Contributed to creating annotation guidelines for LLM training datasets, focusing on Chinese language understanding and cultural nuance. · Dataset Cleaning: Cleaned and preprocessed raw datasets (removing duplicates, outliers, and incorrect labels). · Team Leadership: Led a small annotation team (5–10 people), tracked progress, and ensured daily output targets were met. AIGC Content Evaluation (Project-Based) | 2023 – Present · Evaluated AI-generated scripts, dialogues, and captions for fluency, coherence, and accuracy. · Provided feedback to improve LLM output quality in storytelling and creative content generation. Web3 Project – Data Analysis Support | 2022 – 2023 · Analyzed user engagement data (click-through rates, retention, conversion) to optimize content strategies for NFT/GameFi projects. --- Professional Background (Supporting Role) Fuli Pictures | Founder / Producer | 2018 – Present · Managed production workflows, team coordination, and quality control (transferable to data QA and team management). · Experience working under tight deadlines and strict quality standards. Chongqing Television Station | News Anchor / Reporter | 2011 – 2014 · National Level 1 Mandarin (Grade B) – highest professional standard for Chinese language data training. --- Key Skills (AI Data Training) Category Skills Data Annotation Text classification, NER, sentiment analysis, object detection, image/video labeling Quality Assurance Cross-validation, label consistency, error detection, guideline adherence Data Processing Cleaning, deduplication, outlier removal, dataset formatting Tools (Familiar) LabelImg, CVAT, Excel, Google Sheets, basic Python (pandas) Team Management Small team leadership, daily progress tracking, goal setting Languages Mandarin (Native, National Level 1 Grade B), English (Working Proficiency) --- Certifications & Qualifications · National Level 1 Mandarin (Grade B) – Preferred for high-quality Chinese language training datasets. · AI & AIGC Fundamentals – Self-taught prompt engineering and LLM output evaluation. --- What I Bring to Your AI Data Team ✅ High-quality, culturally accurate Chinese data – National Level 1 Mandarin ensures deep language nuance. ✅ Team leadership experience – Can lead small annotation/QA teams under tight deadlines. ✅ Quality-first mindset – Trained in media production where every detail matters. ✅ Fast learner – Quickly adapt to annotation tools, guidelines, and new data types.

Education

Work History