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W

Wairimu Chege

AI Data Annotator

Kenya flagNairobi, Kenya
$13.00/hrExpertSama

Key Skills

Software

SamaSama

Top Subject Matter

General AI/ML
Lidar/3D Sensing

Top Data Types

VideoVideo
3D Sensor
ImageImage

Top Task Types

TranscriptionTranscription
ClassificationClassification
Bounding BoxBounding Box
Text GenerationText Generation

Freelancer Overview

AI Data Annotator. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Bachelor of Science, Kirinyaga University (2018) and Certificate, Utalii College (2014). AI-training focus includes data types such as Video and 3D Sensor and labeling workflows including Transcription and Classification.

ExpertEnglish

Labeling Experience

AI Data Annotator

VideoTranscription
As an AI Data Annotator at Digital Divide Data, I performed video annotation and transcription tasks to support machine learning projects. I ensured high quality and consistency in annotated video data, contributing directly to AI model accuracy. My responsibilities also included reviewing records for completeness and correcting errors as necessary. • Conducted video annotation for AI/ML dataset preparation • Transcribed audiovisual content for model training • Checked and corrected annotation records for accuracy • Collaborated with team members to ensure data quality

As an AI Data Annotator at Digital Divide Data, I performed video annotation and transcription tasks to support machine learning projects. I ensured high quality and consistency in annotated video data, contributing directly to AI model accuracy. My responsibilities also included reviewing records for completeness and correcting errors as necessary. • Conducted video annotation for AI/ML dataset preparation • Transcribed audiovisual content for model training • Checked and corrected annotation records for accuracy • Collaborated with team members to ensure data quality

2025 - Present
Sama

Quality Analyst

Sama3D SensorClassification
As a Quality Analyst at Samasource Kenya, I analyzed and evaluated agents' lidar annotation work, ensuring adherence to established quality standards. I provided detailed feedback and reports, enhancing overall data labeling operations. My focus was on maintaining high-quality labeled 3D sensor data for various AI use cases. • Evaluated lidar annotation output for accuracy • Provided feedback and coaching to annotation agents • Reported on quality metrics and improvement areas • Supported AI model reliability through data quality management

As a Quality Analyst at Samasource Kenya, I analyzed and evaluated agents' lidar annotation work, ensuring adherence to established quality standards. I provided detailed feedback and reports, enhancing overall data labeling operations. My focus was on maintaining high-quality labeled 3D sensor data for various AI use cases. • Evaluated lidar annotation output for accuracy • Provided feedback and coaching to annotation agents • Reported on quality metrics and improvement areas • Supported AI model reliability through data quality management

2022 - 2022

Education

K

Kirinyaga University

Bachelor of Science, Human Resource Management

Bachelor of Science
2014 - 2018
U

Utalii College

Certificate, Front Desk Techniques

Certificate
2014 - 2014

Work History

C

Cloudfactory Kenya Limited

Data Entry Clerk

Nairobi
2019 - 2021
E

Essential Management And Consultancy Limited

Human Resource Intern

Nairobi
2017 - 2017