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Kevin Omwanza

Kevin Omwanza

Content Data Support Specialist - Digital Media Platforms

KENYA flag
Nakuru, Kenya
$20.00/hrExpertCVAT

Key Skills

Software

CVATCVAT

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

Bounding Box
Segmentation

Freelancer Overview

I am a detail-oriented data support specialist with over four years of experience managing, validating, and optimizing large-scale content data systems for digital media platforms. My background includes improving data accuracy through automated validation checks, auditing and cleaning legacy content databases, and ensuring high-quality metadata tagging—all essential for effective data labeling and annotation. I am skilled in using CMS platforms like WordPress and Drupal, leveraging SQL for database querying, and applying analytics tools such as Google Analytics to monitor data performance. I excel at collaborating with cross-functional teams to resolve data discrepancies and streamline workflows, and I am committed to maintaining data integrity for projects that require precise and reliable training data for AI and machine learning applications.

ExpertEnglishBengaliSpanishSwahiliGreekPortugueseFrenchTelugu

Labeling Experience

CVAT

Image Annotator for Autonomous Vehicle Dataset

CVATVideoBounding BoxSegmentation
Worked on a large-scale data labeling project for a leading autonomous vehicle company. The goal was to annotate visual data to train perception models for self-driving cars. Scope & Scale: Annotated over 50,000 images and 10, hours of video footage captured from urban and highway environments. Specific Tasks: Drew precise bounding boxes around vehicles, pedestrians, cyclists, and traffic lights Performed semantic segmentation to label road surfaces, lane markings, crosswalks, and sky Completed LiDAR annotation for 3D point cloud data to identify objects in spatial context Labeled traffic sign categories (stop signs, speed limits, yield signs, etc.) Quality Measures: Followed detailed annotation guidelines and style guides Maintained 95%+ accuracy through regular quality audits Participated in calibration exercises and feedback loops with quality assurance team Reviewed and corrected annotations based on client feedback

Worked on a large-scale data labeling project for a leading autonomous vehicle company. The goal was to annotate visual data to train perception models for self-driving cars. Scope & Scale: Annotated over 50,000 images and 10, hours of video footage captured from urban and highway environments. Specific Tasks: Drew precise bounding boxes around vehicles, pedestrians, cyclists, and traffic lights Performed semantic segmentation to label road surfaces, lane markings, crosswalks, and sky Completed LiDAR annotation for 3D point cloud data to identify objects in spatial context Labeled traffic sign categories (stop signs, speed limits, yield signs, etc.) Quality Measures: Followed detailed annotation guidelines and style guides Maintained 95%+ accuracy through regular quality audits Participated in calibration exercises and feedback loops with quality assurance team Reviewed and corrected annotations based on client feedback

2022 - 2024

Education

U

University of Nairobi

Bachelor of Science, Information Technology

Bachelor of Science
2013 - 2017

Work History

T

Techsolutions Africa

Data Support Analyst

Nairobi
2021 - Present
E

East African Digital Media Group

Content Operations Specialist

Nairobi
2019 - 2021