Olusola Owolabi

Key Skills

Software

Appen

CVAT

Doccano

Mercor

Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Image

Text

Video

Top Label Types

Action Recognition

Classification

Cuboid

Emotion Recognition

Evaluation Rating

Prompt Response Writing SFT

RLHF

Tracking

Freelancer Overview

I am an experienced AI data specialist with over two years of hands-on expertise in high-volume data annotation and labeling across text, image, audio, and video domains. My work has contributed to training advanced machine learning models, with a proven track record of 98–99% accuracy over 50,000+ samples. I am skilled in using industry-standard annotation tools such as LabelStudio, Prodigy, Labelbox, and CVAT for tasks like bounding box creation, segmentation, NER, sentiment analysis, and RLHF. I excel at quality assurance, dataset management, and developing clear guidelines to improve annotation consistency and model performance. My background also includes extensive experience in data entry, audits, and remote team collaboration, ensuring data reliability and efficiency. I am eager to bring my analytical skills, attention to detail, and passion for AI/ML data operations to new and challenging projects.

Labeling Experience

Temporal Action Localization & Content Safety Auditing

Internal Proprietary ToolingVideoClassificationAction Recognition

Performed frame-by-frame analysis of short-form video content to identify and timestamp specific events or prohibited actions. Evaluated video metadata and visual cues to detect deepfakes, manipulated media, or policy violations. Provided detailed reasoning for borderline content that required nuanced cultural context.

Performed frame-by-frame analysis of short-form video content to identify and timestamp specific events or prohibited actions. Evaluated video metadata and visual cues to detect deepfakes, manipulated media, or policy violations. Provided detailed reasoning for borderline content that required nuanced cultural context.

2025 - 2025

Multimodal Data Annotation for Scene Understanding

CVATVideoTracking

Annotated complex video sequences by identifying and labeling objects across multiple frames (Interpolation).

Annotated complex video sequences by identifying and labeling objects across multiple frames (Interpolation).

2025 - 2025

Generative AI Image Quality & Factuality Expert

MercorImageRLHF

Providing expert-level feedback on AI-generated visual content. Tasks involve identifying hallucinations, anatomical inconsistencies, and lighting errors in high-resolution synthetic images. Expertise includes evaluating prompt adherence and grading model outputs to improve the realism of Generative AI models.

Providing expert-level feedback on AI-generated visual content. Tasks involve identifying hallucinations, anatomical inconsistencies, and lighting errors in high-resolution synthetic images. Expertise includes evaluating prompt adherence and grading model outputs to improve the realism of Generative AI models.

2025 - 2025

Search Engine Result Evaluator

AppenTextEvaluation Rating

Evaluated the accuracy and user intent of search engine results for a major global search provider. Performed side-by-side comparisons of algorithmic outputs to determine the most helpful content based on query nuances. Consistently maintained a Spam Accuracy score above 85% while adhering to complex, 50-page technical guidelines.

Evaluated the accuracy and user intent of search engine results for a major global search provider. Performed side-by-side comparisons of algorithmic outputs to determine the most helpful content based on query nuances. Consistently maintained a Spam Accuracy score above 85% while adhering to complex, 50-page technical guidelines.

2024 - 2025

Education

Work History