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J

Johnny

Freelance Data Analyst & AI Data Annotator (Text)

AUSTRALIA flag
Victoria, Australia
$13.00/hrExpertClickworkerCloudfactoryCrowdsource

Key Skills

Software

ClickworkerClickworker
CloudFactoryCloudFactory
CrowdSourceCrowdSource
CVATCVAT
iMeritiMerit
LionbridgeLionbridge
MercorMercor
MindriftMindrift
OneFormaOneForma
Scale AIScale AI
TelusTelus

Top Subject Matter

General Natural Language Processing
General Speech Recognition and NLP
General Computer Vision and Video Analytics

Top Data Types

TextText
AudioAudio
VideoVideo
DocumentDocument

Top Task Types

Classification
Transcription
Object Detection
Bounding Box
Polygon
Segmentation
Text Generation
Question Answering
Text Summarization
Fine Tuning
Evaluation Rating

Freelancer Overview

Freelance Data Analyst & AI Data Annotator (Text). Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Data Science, N/A (2018). AI-training focus includes data types such as Text, Audio, and Video and labeling workflows including Classification, Transcription, and Object Detection.

ExpertEnglishFrench

Labeling Experience

Freelance Data Analyst & AI Data Annotator (Video)

VideoObject Detection
Labeled video datasets for object detection, activity recognition, and frame-level tagging in various projects. Achieved consistent accuracy above 98% and strict compliance with project specifications. Participated in peer review for annotation quality and structured video data for machine learning pipelines. • Performed frame-level annotation and object tagging • Applied activity recognition labels to video sequences • Conducted systematic peer review with feedback loops • Cleaned and structured large video datasets

Labeled video datasets for object detection, activity recognition, and frame-level tagging in various projects. Achieved consistent accuracy above 98% and strict compliance with project specifications. Participated in peer review for annotation quality and structured video data for machine learning pipelines. • Performed frame-level annotation and object tagging • Applied activity recognition labels to video sequences • Conducted systematic peer review with feedback loops • Cleaned and structured large video datasets

2019 - Present

Freelance Data Analyst & AI Data Annotator (Audio)

AudioTranscription
Conducted detailed audio transcription with speaker segmentation, timestamp alignment, and audio labeling. Maintained strict adherence to quality assurance and annotation guidelines on varied audio content. Reviewed peer audio annotations and played a key role in maintaining quality standards. • Delivered high-accuracy audio transcripts • Applied speaker segmentation and timestamping • Labeled audio files for emotion and intent • Performed quality review on peer data

Conducted detailed audio transcription with speaker segmentation, timestamp alignment, and audio labeling. Maintained strict adherence to quality assurance and annotation guidelines on varied audio content. Reviewed peer audio annotations and played a key role in maintaining quality standards. • Delivered high-accuracy audio transcripts • Applied speaker segmentation and timestamping • Labeled audio files for emotion and intent • Performed quality review on peer data

2019 - Present

Freelance Data Analyst & AI Data Annotator (Text)

TextClassification
Annotated and validated large-scale text datasets for sentiment analysis, intent tagging, entity recognition, and semantic categorization. Consistently delivered high-accuracy annotations aligned with detailed project guidelines and quality benchmarks. Structured and cleaned raw text data to support machine learning model training. • Performed text annotation and entity classification • Supported AI model development with labeled data • Maintained inter-annotator agreement over 98% • Independently delivered high-volume, quality outputs

Annotated and validated large-scale text datasets for sentiment analysis, intent tagging, entity recognition, and semantic categorization. Consistently delivered high-accuracy annotations aligned with detailed project guidelines and quality benchmarks. Structured and cleaned raw text data to support machine learning model training. • Performed text annotation and entity classification • Supported AI model development with labeled data • Maintained inter-annotator agreement over 98% • Independently delivered high-volume, quality outputs

2019 - Present

Education

U

University of Western Australia

Bachelor of Data Science, Data Science

Bachelor of Data Science
2015 - 2018

Work History

W

Webflux

Social Media Manager

Healesville
2015 - 2018