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Nguyen Sy

Nguyen Sy

Data Annotation Specialist

VIETNAM flag
Hanoi, Vietnam
$20.00/hrExpertLabelboxScale AI

Key Skills

Software

LabelboxLabelbox
Scale AIScale AI

Top Subject Matter

AI Data Labeling
Autonomous Driving
Fashion Computer Vision

Top Data Types

ImageImage
AudioAudio
TextText
DocumentDocument

Top Task Types

Bounding Box
Classification
Transcription

Freelancer Overview

Data Annotation Specialist. Brings 12+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, Scale AI, and DataAnnotation. Education includes Bachelor of Science, Hanoi University of Mining and Geology (2013). AI-training focus includes data types such as Image and Audio and labeling workflows including Bounding Box, Classification, and Transcription.

ExpertVietnameseEnglish

Labeling Experience

Labelbox

Traffic Camera Image Annotation Project – Korean AI Company

LabelboxImageClassification
As part of a traffic camera image annotation initiative for a Korean AI company, I labeled images for AI-based traffic monitoring. The tasks included classifying vehicles, incidents, and environmental elements. Quality review processes ensured all annotations met high project standards. • Labeled and classified vehicles and traffic activities in images. • Assisted in building large annotated datasets for traffic AI models. • Reviewed annotations to ensure guidelines compliance. • Conducted work on a long-term, ongoing traffic monitoring project.

As part of a traffic camera image annotation initiative for a Korean AI company, I labeled images for AI-based traffic monitoring. The tasks included classifying vehicles, incidents, and environmental elements. Quality review processes ensured all annotations met high project standards. • Labeled and classified vehicles and traffic activities in images. • Assisted in building large annotated datasets for traffic AI models. • Reviewed annotations to ensure guidelines compliance. • Conducted work on a long-term, ongoing traffic monitoring project.

2023 - Present
Labelbox

Data Annotation Specialist

LabelboxImageBounding Box
As a Data Annotation Specialist, I participated in large-scale AI data annotation projects focusing on images. I was responsible for annotating, reviewing, and handling complex edge cases to ensure high annotation accuracy. I worked with various industry tools while maintaining productivity and adhering to strict deadlines. • Annotated and reviewed images for AI and machine learning projects. • Resolved ambiguous data situations and corrected annotations for QA compliance. • Used platforms such as Labelbox, Scale AI, and proprietary systems. • Collaborated within project teams to deliver short- and long-term datasets.

As a Data Annotation Specialist, I participated in large-scale AI data annotation projects focusing on images. I was responsible for annotating, reviewing, and handling complex edge cases to ensure high annotation accuracy. I worked with various industry tools while maintaining productivity and adhering to strict deadlines. • Annotated and reviewed images for AI and machine learning projects. • Resolved ambiguous data situations and corrected annotations for QA compliance. • Used platforms such as Labelbox, Scale AI, and proprietary systems. • Collaborated within project teams to deliver short- and long-term datasets.

2021 - Present
Labelbox

Audio Recording & Annotation Project – Viettel AI Callbot

LabelboxAudioTranscription
For the Viettel AI Callbot project, I collected, transcribed, and annotated audio data to support AI callbot systems. This included speech labeling according to linguistic and acoustic guidelines. My work enhanced dataset quality for training speech recognition models. • Audio data collection and detailed transcription for callbot AI. • Labeled speech segments following guidelines. • Improved training datasets for automated speech recognition. • Consistently met project standards for annotated audio data.

For the Viettel AI Callbot project, I collected, transcribed, and annotated audio data to support AI callbot systems. This included speech labeling according to linguistic and acoustic guidelines. My work enhanced dataset quality for training speech recognition models. • Audio data collection and detailed transcription for callbot AI. • Labeled speech segments following guidelines. • Improved training datasets for automated speech recognition. • Consistently met project standards for annotated audio data.

2022 - 2023
Labelbox

Fashion Image Annotation Project – NIKE AI System

LabelboxImageClassification
I worked on annotating fashion images used for AI-based clothing and visual recognition at NIKE. I labeled apparel categories, visual features, and specific attributes required for model training. My contributions focused on accuracy and meeting quality standards. • Labeled different garment types and visual properties in fashion images. • Corrected annotations for QA and standard compliance. • Helped train AI models for apparel recognition. • Used best practices for classification and image annotation.

I worked on annotating fashion images used for AI-based clothing and visual recognition at NIKE. I labeled apparel categories, visual features, and specific attributes required for model training. My contributions focused on accuracy and meeting quality standards. • Labeled different garment types and visual properties in fashion images. • Corrected annotations for QA and standard compliance. • Helped train AI models for apparel recognition. • Used best practices for classification and image annotation.

2022 - 2023
Labelbox

Autonomous Driving Image Annotation Project – Inffiniq Vietnam / Hyundai

LabelboxImageBounding Box
I annotated traffic scene images for an autonomous driving system, supporting computer vision model training. My responsibilities included labeling vehicles, pedestrians, lanes, traffic signs, and road infrastructure with high accuracy. I played a key role in quality assurance review cycles for consistent annotations. • Annotated vehicle, pedestrian, and infrastructure objects in images. • Participated in QA to ensure high consistency and accuracy. • Contributed to annotated datasets for self-driving technology. • Applied best practices for image annotation at Inffiniq Vietnam / Hyundai.

I annotated traffic scene images for an autonomous driving system, supporting computer vision model training. My responsibilities included labeling vehicles, pedestrians, lanes, traffic signs, and road infrastructure with high accuracy. I played a key role in quality assurance review cycles for consistent annotations. • Annotated vehicle, pedestrian, and infrastructure objects in images. • Participated in QA to ensure high consistency and accuracy. • Contributed to annotated datasets for self-driving technology. • Applied best practices for image annotation at Inffiniq Vietnam / Hyundai.

2021 - 2023

Education

H

Hanoi University of Mining and Geology

Bachelor of Science, Surveying

Bachelor of Science
2008 - 2013

Work History

W

WIS Vietnam Software Services Joint Stock Company

Chief Executive Officer

Hanoi
2021 - Present
N

Nobi Joint Stock Company

Business Analyst

Hanoi
2021 - 2024