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O
Onyeka U.

Onyeka U.

Ai Data Specialist - Video Annotation and Medical Computer Vision

Nigeria flagEnugu, Nigeria

Key Skills

Software

AWS SageMakerAWS SageMaker
AppenAppen

Top Subject Matter

Healthcare- Medical imaging
Technology- Computer Vision/Ai Training
E-commerce

Top Data Types

VideoVideo
ImageImage
Medical DicomMedical Dicom

Top Task Types

Bounding BoxBounding Box
SegmentationSegmentation
PolygonPolygon
ClassificationClassification

Freelancer Overview

As an experienced Tier 3 video annotation specialist and technical writer, I have built a strong background in curating high-quality training datasets for advanced AI systems. My expertise spans a wide variety of complex technical workflows, including precise multimodal object tracking, granular behavioral labeling, and spatial data annotation across specialized micro-tasking platforms. I focus on maintaining rigorous quality control and technical accuracy, ensuring that all datasets strictly adhere to data curation guidelines. ​Beyond general annotation, my background allows me to handle highly specialized, domain-specific data with exceptional attention to detail. I excel at translating intricate physical movements, specialized procedures, and complex logic patterns into clean, high-fidelity metadata. I am highly adaptable to evolving project requirements, skilled at navigating rigid taxonomies, and deeply committed to optimizing dataset integrity to train robust, reliable machine learning models.

Labeling Experience

Tier 3 Video Annotation and Technical Writing Specialist

VideoVideoBounding BoxBounding Box

This project focused on creating high-fidelity, large-scale training datasets for machine learning models specializing in egocentric (first-person) action recognition and robotics interaction. The primary scope involved evaluating complex, real-world human tasks—ranging from mechanical operations to fine motor tool handling—and breaking them down into highly granular timestamps. I executed detailed video segmentations, ensuring that transitions between distinct human actions were captured with absolute precision. ​The core labeling tasks required strict adherence to rigid, low-level taxonomy guidelines, translating physical human workflows into precise 2-word functional baselines (verb-noun pairs). I cross-referenced action tags against highly restricted dictionaries to eliminate "fluff" and ensure compatibility with automated verification scripts. Quality control measures were incredibly strict, requiring a zero-tolerance approach to descriptive ambiguity, structural inconsistencies, or class mismatches. My focus on precise categorization directly contributed to generating clean, optimized datasets designed to train robust AI models to understand human-object interactions seamlessly.

2026 - Present

Education

U

University of Nigeria

Bachelor of medicine, Bachelor of surgery (MBBS), Medicines and surgery

Bachelor of medicine, Bachelor of surgery (MBBS)
2020 - 2026

Work History

T

The Excos styling

Entrepreneurship

Enugu
2025 - Present