Charles Wong

Key Skills

Software

Appen

Data Annotation Tech

OneForma

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Document

Video

Top Task Types

Audio Recording

Evaluation Rating

Text Generation

Text Summarization

Translation Localization

Freelancer Overview

I have participated in multiple LLM localization projects across different platforms as an evaluator, annotator and QA. I possess native proficiency in writing and speaking in Mandarin (Simplified/Traditional), English, Cantonese (Yue Chinese) and near native fluency in Malay (Bahasa Melayu). I am also very experienced in different data labelling projects for objects such as e-commerce products, traffic objects, cultural significants etc. I come with strong experience in different labelling softwares such as Appen, DataAnnotation, OneForma, UHRS etc, meaning I will be a valuable member in any project that I'm a part of.

Labeling Experience

Video Content Annotator - Malay Language

Data Annotation TechVideoTranslation LocalizationEvaluation Rating

Reviewed AI transcripts of video content in Malay and clearly labelled errors, clearly indicated severity of any error with given numerical scale and timestamped all errors precisely, strictly followed project guidelines

Reviewed AI transcripts of video content in Malay and clearly labelled errors, clearly indicated severity of any error with given numerical scale and timestamped all errors precisely, strictly followed project guidelines

2025 - 2025

LLM Assistant Evaluator - English

AppenTextFine TuningEvaluation Rating

Evaluated English AI assistant conversations by scoring model output numerically, fact-checking, verifying user intent alignments, flagging inaccuracies, supplied clear feedback or refined prompts to enhance LLM performance strictly in accordance to project guidelines.

Evaluated English AI assistant conversations by scoring model output numerically, fact-checking, verifying user intent alignments, flagging inaccuracies, supplied clear feedback or refined prompts to enhance LLM performance strictly in accordance to project guidelines.

2025 - 2025

AI Translation Evaluator - English to Simplified Chinese

AppenTextText SummarizationTranslation Localization

Used Appen web-based client to review and score LLM translated paragraphs of English to Simplified Chinese, labelled the errors into different categories, evaluated cultural appropriateness and added concise comments on errors for the LLM to review.

Used Appen web-based client to review and score LLM translated paragraphs of English to Simplified Chinese, labelled the errors into different categories, evaluated cultural appropriateness and added concise comments on errors for the LLM to review.

2024 - 2025

E-commerce Data Labeller

AppenImageBounding BoxClassification

Categorised over 400+ e-commerce product images into respective categories, used bounding boxes to label and bracket items, tagged items using given attributes, summarised products concisely in English, strictly following project guidelines

Categorised over 400+ e-commerce product images into respective categories, used bounding boxes to label and bracket items, tagged items using given attributes, summarised products concisely in English, strictly following project guidelines

2024 - 2024

Mandarin Subtitler - Traditional Chinese

OneformaVideoTranslation Localization

Transcribed and subtitled 120+ Mandarin short videos into strictly Traditional Chinese, labelled and time-stamped speaker changes, noises, music, researched proper nouns etc. according to project guidelines

Transcribed and subtitled 120+ Mandarin short videos into strictly Traditional Chinese, labelled and time-stamped speaker changes, noises, music, researched proper nouns etc. according to project guidelines

2023 - 2023

Show more

Education

Work History