Khai Ling Lee

Key Skills

Software

Internal/Proprietary Tooling

Labelbox

Top Subject Matter

No subject matter listed

Top Data Types

Image

Text

Video

Top Task Types

Classification

Emotion Recognition

Segmentation

Text Generation

Translation Localization

Freelancer Overview

Training & Knowledge Management • Designed and delivered training programs for Automatic Speech Recognition (ASR) labelling, ensuring policy alignment across global teams (Arabic, Russian, Dutch, and Urdu). • Provided mentorship and guidance to junior QA team members, fostering knowledge-sharing and skill development. Quality Assurance & Process Optimisation • Conducted quality audits, identified error patterns, and provided actionable feedback to enhance vendor performance. • Developed and implemented automated testing strategies, streamlining QA processes and increasing operational efficiency. • Created reusable test cases for future projects, reducing time spent on test case development and improving scalability. Project Coordination & Cross-Functional Collaboration • Coordinated with global stakeholders across different time zones to ensure seamless and timely project delivery. • Facilitated effective communication between QA, development, and management teams through regular status updates, progress reports, and issue-tracking metrics.

Labeling Experience

Native Mandarin Audio Transcriber – Simplified Chinese (简体中文)

LabelboxAudioClassificationText Generation

Listen to short Mandarin audio clips and transcribe the speech exactly as spoken in Simplified Chinese. Follow a structured style guide for formatting, spelling, numbers, and multi-speaker handling; apply the project’s annotation conventions as required; choose the correct save state with brief reasoning when applicable; capture required speaker metadata; add concise comments when helpful; and submit high-quality work for review.

Listen to short Mandarin audio clips and transcribe the speech exactly as spoken in Simplified Chinese. Follow a structured style guide for formatting, spelling, numbers, and multi-speaker handling; apply the project’s annotation conventions as required; choose the correct save state with brief reasoning when applicable; capture required speaker metadata; add concise comments when helpful; and submit high-quality work for review.

2025 - 2025

ByteDance TikTok Video Annotation

Internal Proprietary ToolingVideoClassificationAction Recognition

Project named Video Diversification Labeling. To train AI model based on the policy under the grouping of Humanities, Law, Science, Education, Workplace, Business and Finance, Technology, Home & Life skills, Society, Movie, TV series, Celebrity, Variety show, Anime, Games, Music, Talents and Hobbies, Short Drama, Performance, Dance, Animals, Daily Life, Food, Fashion, Auto & Vehicles, Supernatural and Horror, Lip Sync, and Other.

Project named Video Diversification Labeling. To train AI model based on the policy under the grouping of Humanities, Law, Science, Education, Workplace, Business and Finance, Technology, Home & Life skills, Society, Movie, TV series, Celebrity, Variety show, Anime, Games, Music, Talents and Hobbies, Short Drama, Performance, Dance, Animals, Daily Life, Food, Fashion, Auto & Vehicles, Supernatural and Horror, Lip Sync, and Other.

2022 - 2025

ByteDance TikTok Image Annotation

Internal Proprietary ToolingImageClassificationObject Detection

Project named Photomode. To identify whether images are replicated or originally posted by the user. At the same time, we need to classify the content, which mainly falls under certain policy guidelines.

Project named Photomode. To identify whether images are replicated or originally posted by the user. At the same time, we need to classify the content, which mainly falls under certain policy guidelines.

2024 - 2024

ByteDance TikTok Audio Annotation

Internal Proprietary ToolingAudioSegmentationClassification

Designed and delivered training programs for Automatic Speech Recognition (ASR) labelling, ensuring policy alignment across global teams (Arabic, Russian, Dutch, and Urdu). Project: ASR ru-Russian (10000 hours) 19/02/2021 - 19/10/2021 Sub-Project: (ru-RU) Timestamp Labeling / LID Labeling / Bytecaption Labeling / Testset Youtube Labeling (as of 31/01/2022) Project: ASR nl-Netherland (5000 hours) 25/05/2021 - 29/12/2021

Designed and delivered training programs for Automatic Speech Recognition (ASR) labelling, ensuring policy alignment across global teams (Arabic, Russian, Dutch, and Urdu). Project: ASR ru-Russian (10000 hours) 19/02/2021 - 19/10/2021 Sub-Project: (ru-RU) Timestamp Labeling / LID Labeling / Bytecaption Labeling / Testset Youtube Labeling (as of 31/01/2022) Project: ASR nl-Netherland (5000 hours) 25/05/2021 - 29/12/2021

2020 - 2022

ByteDance TikTok Text Annotation

Internal Proprietary ToolingTextSegmentationClassification

Task Consistency 1. Conduct root cause analysis discussion of moderation data, complete QA reports on a regular basis and improve quality indicators. 2. Participate and organize business meetings on case analysis and problem feedback with relevant parties. 3. Responsible for monitoring Taiwan NR news & video content quality to ensure community ecological security. 4. Conduct quality assessment work by ensuring and evaluating the quality delivery of the content reviewed. Determine and focus 1. Together with Outsource Team collecting cases and summarize categories, unify understandings on inspection standards, handling appeals from moderators. 2. Highly self-conscious on task's time allocation and management, work extra hours to complete daily task without hesitation.

Task Consistency 1. Conduct root cause analysis discussion of moderation data, complete QA reports on a regular basis and improve quality indicators. 2. Participate and organize business meetings on case analysis and problem feedback with relevant parties. 3. Responsible for monitoring Taiwan NR news & video content quality to ensure community ecological security. 4. Conduct quality assessment work by ensuring and evaluating the quality delivery of the content reviewed. Determine and focus 1. Together with Outsource Team collecting cases and summarize categories, unify understandings on inspection standards, handling appeals from moderators. 2. Highly self-conscious on task's time allocation and management, work extra hours to complete daily task without hesitation.

2020 - 2020

Education

Work History