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Hillario Wekesa

Hillario Wekesa

Senior Data Labelling Specialist

KENYA flag
Nairobi, Kenya
$10.00/hrExpertScale AIClickworkerAppen

Key Skills

Software

Scale AIScale AI
ClickworkerClickworker
AppenAppen

Top Subject Matter

Computer Vision
Autonomous Vehicles
Surveillance Domain Expertise

Top Data Types

ImageImage
VideoVideo
TextText

Top Task Types

Bounding Box
Classification
Entity Ner Classification
Segmentation

Freelancer Overview

Senior Data Labelling Specialist. Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI and Appen. Education includes Master of Science, University of Nairobi (2022) and Bachelor of Science, Moi University (2019). AI-training focus includes data types such as Image and labeling workflows including Bounding Box and Classification.

ExpertSwahiliFrenchEnglish

Labeling Experience

Scale AI

Senior Data Labelling Specialist

Scale AIImageBounding Box
As Senior Data Labelling Specialist at AI Data Solutions Ltd, I led annotation projects for computer vision datasets focused on object detection, segmentation, and keypoint labeling. I was responsible for reviewing and quality-checking annotated data to uphold project accuracy above 98%. My work included complex video annotation tasks such as frame-by-frame bounding box tracking and activity recognition labeling. • Led and managed a team of annotators on various annotation platforms. • Delivered high-quality, project-ready datasets through adherence to annotation guidelines. • Trained and mentored junior staff in annotation tools and quality standards. • Collaborated closely with ML engineers and project stakeholders to meet deliverables.

As Senior Data Labelling Specialist at AI Data Solutions Ltd, I led annotation projects for computer vision datasets focused on object detection, segmentation, and keypoint labeling. I was responsible for reviewing and quality-checking annotated data to uphold project accuracy above 98%. My work included complex video annotation tasks such as frame-by-frame bounding box tracking and activity recognition labeling. • Led and managed a team of annotators on various annotation platforms. • Delivered high-quality, project-ready datasets through adherence to annotation guidelines. • Trained and mentored junior staff in annotation tools and quality standards. • Collaborated closely with ML engineers and project stakeholders to meet deliverables.

2023 - Present
Appen

Data Labelling Analyst

AppenImageClassification
As a Data Labelling Analyst at DataTag Technologies, I performed image classification, semantic segmentation, and text categorization tasks for NLP and computer vision projects. My work contributed to training AI models for autonomous vehicles and surveillance systems. I maintained detailed annotation logs and helped develop team guidelines for consistency. • Annotated over 50,000 images for various AI use cases. • Provided quality assurance through log maintenance and data reviews. • Assisted in guideline development to improve annotation team consistency. • Utilized multiple annotation platforms including Appen and Labelbox.

As a Data Labelling Analyst at DataTag Technologies, I performed image classification, semantic segmentation, and text categorization tasks for NLP and computer vision projects. My work contributed to training AI models for autonomous vehicles and surveillance systems. I maintained detailed annotation logs and helped develop team guidelines for consistency. • Annotated over 50,000 images for various AI use cases. • Provided quality assurance through log maintenance and data reviews. • Assisted in guideline development to improve annotation team consistency. • Utilized multiple annotation platforms including Appen and Labelbox.

2022 - 2023

Education

U

University of Nairobi

Master of Science, Computer Science

Master of Science
2020 - 2022
M

Moi University

Bachelor of Science, Information Technology

Bachelor of Science
2015 - 2019

Work History

S

Self-Employed

Freelance Video & Photo Editor

Nairobi
2020 - Present