John Cheong

Key Skills

Software

CrowdSource

CVAT

Data Annotation Tech

Dataloop

Deep Systems

Google Cloud Vertex AI

Labelbox

Label Studio

Mindrift

Roboflow

Scale AI

SuperAnnotate

Toloka

V7 Labs

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Text

Video

Top Label Types

Action Recognition

Audio Recording

Bounding Box

Question Answering

Translation Localization

Freelancer Overview

• I had contributed to NLP (NPU) training in language for audio and video; provide language interpreting training, emotion recognition, data annotation, labeling specialist, QA QC reviewer for Chinese/Cantonese (simplified Chinese, Hong Kong traditional Chinese, Taiwan traditional Chinese) language AI training etc to all AI model including LLM. Employer including OpenAI, Meta, Uber, OpenTrain AI, DeepSeek, Huawei. • AI TRAINER + Data Lebeling Expert + Annotator + Quality Control (QC) Reviewer + Quality Assurance (QA) + Human Labeling Analyst + Data Annotation Specialist + Data Researcher for Chinese Language/Cantonese/Mainland Mandarin/Taiwan Mandarin/Traditional Chinese/Simplified Chinese on AI Projects/Model Training/Transcription Projects/Data Annotation/Audio Annotation/Video Annotation for employer including OpenAI, Meta, Uber, OpenTrain AI, Ermis since 2022 unti present. My average working hour per week for all those projects were at least 60 hours/week. • Trainer for TPU, GPU, NPU based AI. • Transcriber for film industry & gaming industry including Nioh2, Sekiro, Wolung, Black Myth Wukong, etc. • Mastered in Labelbox, Roboflow, Scale AI, Appen, Dataloop, V7(Darwin), Python, SuperAnnotate, Label Studio, CVAT, VGG Image Annotator, LabelMe, Kili,AWS Sagemaker, Surge AI, and others. • Active traders for crytocurrencies, commodities futures & options. • For remote work, having stable internet connection speed with minimum download/upload speed: 100Mbps/50Mbps.

Labeling Experience

Native Labeler for OpenTrain AI

LabelboxAudioAudio Recording

As a labler, QC reviewer, QA reviewer.

As a labler, QC reviewer, QA reviewer.

2025

Annotation / Labeler

CVATImageBounding BoxObject Detection

detect vehicles, animals, objects, etc.

detect vehicles, animals, objects, etc.

2025 - 2025

Labeling / Annotation

RoboflowImageBounding BoxPolygon

Detect floor, wall, construction materials, machinery.

Detect floor, wall, construction materials, machinery.

2025 - 2024

Education

Work History