For employers

Hire this AI Trainer

Sign in or create an account to invite AI Trainers to your job.

Invite to Job
Gamaliel Olayiwola

Gamaliel Olayiwola

AI Training Specialist - Data Annotation & Quality Assurance

UNITED_KINGDOM flag
Oxford, United Kingdom
$15.00/hrIntermediateOtherCVAT

Key Skills

Software

Other
CVATCVAT

Top Subject Matter

No subject matter listed

Top Data Types

TextText
ImageImage

Top Label Types

Text Generation
Action Recognition

Freelancer Overview

I am an AI data operations and training specialist with over 3 years of hands-on experience in data annotation, quality assurance, and team leadership across diverse domains including NLP, computer vision, speech recognition, e-commerce, and clinical healthcare data. My expertise spans LLM output evaluation, prompt quality assessment, red-teaming, and RLHF data pipeline design, with a proven record of building high-performing annotation teams, developing taxonomies that improve model accuracy, and achieving >97% inter-annotator agreement through robust QA frameworks. I am highly skilled in tools like Labelbox, Scale AI, Doccano, Prodigy, SQL, Python (pandas), and Jira, and have authored comprehensive annotation guidelines and evaluation rubrics. My strong background in data governance (GDPR, DPA 2018, Caldicott), structured reasoning, and clear written communication ensures rigorous, consistent labelling even in ambiguous scenarios. I thrive on delivering actionable insights and quality data for AI model improvement, maintaining 100% client satisfaction across 75+ projects.

IntermediateEnglishYoruba

Labeling Experience

CVAT

Data Evaluator

CVATImageAction Recognition
I annotate, classify, tag and segment these data using bounding boxes, polygon, line, and polyline tools.

I annotate, classify, tag and segment these data using bounding boxes, polygon, line, and polyline tools.

2021 - 2021

Data Annotator

OtherTextText Generation
Analysed, sorted and annotated pre-purchase consumer intent data for the analytics platform across different fields. Screened relevant webpages, categorising them according to predetermined criteria and instructions.

Analysed, sorted and annotated pre-purchase consumer intent data for the analytics platform across different fields. Screened relevant webpages, categorising them according to predetermined criteria and instructions.

2020 - 2020

Education

U

Ulster University, London

Master of Science, Marketing, Analytics and Communications

Master of Science
2022 - 2024
U

University of Lagos

Bachelor of Laws, Law

Bachelor of Laws
2010 - 2015

Work History

O

Oxford Health NHS Foundation Trust

Data Quality Analyst

Oxford
2023 - Present
M

Modamuse Collective

QA Engineer

Remote
2022 - 2023