Ugonna A.

Key Skills

Software

Labelbox

CVAT

Top Subject Matter

AI/ML security and threat-detection dataset annotation

Digital content preparation for cybersecurity education

Top Data Types

Image

Video

Text

Top Task Types

Bounding Box

Segmentation

Entity (NER) Classification

Freelancer Overview

Data Annotator (Freelance) — Lagos, Nigeria. Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Labelbox, CVAT, and Adobe Premiere Pro. Education includes Bachelor of Technology, Federal University of Technology, Owerri (FUTO) (2029) and Bachelor of Technology, Google. AI-training focus includes data types such as Image, Video, and Text and labeling workflows including Bounding Box, Segmentation, and Entity (NER) Classification.

Labeling Experience

Data Annotator (Freelance) — Lagos, Nigeria

LabelboxImageBounding BoxSegmentation

Accurately annotated large volumes of images, videos, and text data to support machine learning and AI-driven security models. Performed quality assurance checks to identify inconsistencies and improve dataset accuracy and reliability for downstream use. Collaborated on refining annotation guidelines to enhance efficiency and consistency across projects. • Labeled images and/or images within video streams in a security-focused context • Produced bounding boxes and segmentation-style annotations as required by project specs • Validated label quality through systematic QA and consistency checks • Used Labelbox and CVAT to manage labeling workflows and export structured datasets

2025 - Present

Video Editor (Freelance) — Lagos, Nigeria

Image

Created and edited cybersecurity-related and educational video content using professional video editing tools. Tailored edits for social media and learning use, incorporating client feedback and managing post-production workflows under tight timelines. While this work is not traditional model labeling, it supports AI/ML training and awareness content generation through curated media preparation. • Edited videos for YouTube, Instagram, and TikTok with transitions, effects, and color grading • Integrated sound design and post-production elements based on briefing and feedback • Produced cybersecurity awareness content to communicate technical concepts • Ensured timely delivery of finalized assets for multiple projects

2024 - Present

Education

Work History