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Barnabas Mwaura

AI Data Annotator – Freelance

Kenya flagunited States, Kenya
IntermediateCVATLabel Studio

Key Skills

Software

CVATCVAT
Label StudioLabel Studio

Top Subject Matter

Computer Vision
Natural Language Processing (NLP)

Top Data Types

ImageImage
TextText

Top Task Types

Bounding Box
Entity Ner Classification

Freelancer Overview

AI Data Annotator – Freelance. Core strengths include CVAT and Label Studio. Education includes Bachelor of Science, N/A. AI-training focus includes data types such as Image and Text and labeling workflows including Bounding Box and Entity (NER) Classification.

Intermediate

Labeling Experience

Label Studio

NLP Annotation Specialist – Freelance (Remote)

Label StudioTextEntity Ner Classification
I labeled text datasets for sentiment analysis, intent recognition, and entity identification in NLP projects. The goal was to help train AI systems to better understand human language. I maintained strict attention to detail while adhering to project requirements and timelines. • Labeled text for sentiment polarity and emotional tone • Annotated intent and entities for NLU/NLP models • Used Google Sheets and Label Studio for text annotation • Followed detailed annotation guidelines throughout projects

I labeled text datasets for sentiment analysis, intent recognition, and entity identification in NLP projects. The goal was to help train AI systems to better understand human language. I maintained strict attention to detail while adhering to project requirements and timelines. • Labeled text for sentiment polarity and emotional tone • Annotated intent and entities for NLU/NLP models • Used Google Sheets and Label Studio for text annotation • Followed detailed annotation guidelines throughout projects

2024 - Present
CVAT

AI Data Annotator – Freelance (Remote)

CVATImageBounding Box
I annotated large image datasets by identifying and labeling objects with bounding boxes and classification tags. My work contributed to the development of object detection models in computer vision. I ensured high accuracy and consistency by following strict quality standards and annotation guidelines. • Applied bounding boxes to vehicles, people, animals, and daily objects • Used CVAT and Label Studio for annotation tasks • Reviewed and validated labeled data for quality assurance • Maintained high throughput while ensuring accuracy

I annotated large image datasets by identifying and labeling objects with bounding boxes and classification tags. My work contributed to the development of object detection models in computer vision. I ensured high accuracy and consistency by following strict quality standards and annotation guidelines. • Applied bounding boxes to vehicles, people, animals, and daily objects • Used CVAT and Label Studio for annotation tasks • Reviewed and validated labeled data for quality assurance • Maintained high throughput while ensuring accuracy

2024 - Present

Education

N

N/A

Bachelor of Science, Mathematics and Chemistry

Bachelor of Science
2024 - 2024

Work History

No Work History added yet

Barnabas M. hasn’t added any Work History to their OpenTrain profile yet.