Mubarak Oguntunde

Key Skills

Software

Scale AI

Remotasks

Appen

Label Studio

SuperAnnotate

Diffgram

Top Subject Matter

ML/NLP/Text & Image/Audio Annotation

LLM outputs

AI model outputs

Top Data Types

Text

Image

Top Task Types

Entity Ner Classification

Classification

Freelancer Overview

AI Data Annotator & Trainer (Freelance). Brings 6+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Scale AI, Remotasks, and Appen. AI-training focus includes data types such as Text and Image and labeling workflows including Entity (NER) Classification and Classification.

Labeling Experience

AI Data Annotator – Freelance (Remote)

Scale AITextEntity Ner Classification

As a freelance AI Data Annotator, I labeled large datasets across text, image, and audio modalities for various machine learning applications. My work encompassed performing sentiment analysis, entity recognition, and rigorous quality assurance checks. I was committed to the accuracy, consistency, and timely delivery of over 10,000+ annotations. • Labeled text, image, and audio datasets for training and testing AI. • Conducted detailed sentiment analysis and entity recognition on diverse data. • Evaluated outputs from large language models (LLMs). • Performed quality checks to ensure labeling consistency and dataset integrity.

As a freelance AI Data Annotator, I labeled large datasets across text, image, and audio modalities for various machine learning applications. My work encompassed performing sentiment analysis, entity recognition, and rigorous quality assurance checks. I was committed to the accuracy, consistency, and timely delivery of over 10,000+ annotations. • Labeled text, image, and audio datasets for training and testing AI. • Conducted detailed sentiment analysis and entity recognition on diverse data. • Evaluated outputs from large language models (LLMs). • Performed quality checks to ensure labeling consistency and dataset integrity.

2025 - Present

AI Training & Evaluation Contributor

Scale AIImageClassification

As an AI Training & Evaluation Contributor, I assisted in AI model training by annotating computer vision datasets and evaluating model outputs. My responsibilities included ranking outputs, identifying inconsistencies, and supporting dataset improvement efforts. I collaborated remotely to help refine and validate computer vision model performance. • Annotated various computer vision datasets for image classification tasks. • Ranked and evaluated the accuracy of AI-generated outputs. • Detected inconsistencies and contributed to dataset curation. • Provided feedback to improve overall AI model quality.

As an AI Training & Evaluation Contributor, I assisted in AI model training by annotating computer vision datasets and evaluating model outputs. My responsibilities included ranking outputs, identifying inconsistencies, and supporting dataset improvement efforts. I collaborated remotely to help refine and validate computer vision model performance. • Annotated various computer vision datasets for image classification tasks. • Ranked and evaluated the accuracy of AI-generated outputs. • Detected inconsistencies and contributed to dataset curation. • Provided feedback to improve overall AI model quality.

2024 - 2025

Education

Work History