Onari W.

Key Skills

Software

Label Studio

CVAT

Scale AI

Other

Top Subject Matter

AI/ML (multimodal computer vision and NLP datasets)

NLP and computer vision labeling for AI/ML projects

ML training dataset preparation and workshop-based team training

Top Data Types

Text

Image

Audio

Top Task Types

Fine-tuning

Data Collection

Freelancer Overview

Senior Data Training Lead — AetherAI (Remote). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Label Studio, CVAT, and Scale AI. Education includes Master of Science, Middex London (2020) and Bachelor of Science, Middex University London (2018). AI-training focus includes data types such as Text and labeling workflows including Fine-tuning, Evaluation, and Rating.

Labeling Experience

Senior Data Training Lead — AetherAI (Remote)

Label StudioTextFine-tuning

Led AI/ML data training efforts for a multimodal team by developing annotation guidelines, training programs, and quality frameworks. Focused on improving data accuracy and inter-annotator agreement for model readiness, including NLP and computer vision related labeling. Established structured training for a large annotator pool and used coaching and audits to drive measurable quality gains. • Designed training programs for 50+ annotators. • Improved inter-annotator agreement from 78% to 96%. • Reduced error rates by 42% through quality frameworks. • Created guidelines for multimodal AI datasets.

2023 - Present

Data Trainer & Annotation Specialist — DataForge Solutions (Remote)

Label StudioText

Provided end-to-end data trainer support for NLP and CV annotation workflows, including onboarding contractors and coaching teams on labeling execution. Built training processes and performed quality assurance through audits to raise overall team accuracy. Supported faster ramp-up by standardizing training and review practices. • Trained and onboarded 80+ contractors on NLP and CV tasks. • Shortened ramp-up time from 4 weeks to 10 days. • Achieved 94% average team accuracy via coaching and audits. • Conducted ongoing quality checks to maintain labeling consistency.

2021 - 2023

Data Analyst & Trainer — TechEdu Academy (Remote)

OtherTextData Collection

Delivered data training workshops for machine learning teams and contributed to building training datasets. Supported preparation of labeled datasets to enable downstream ML model development. Focused on translating training concepts into practical dataset preparation activities for AI projects. • Delivered data training workshops for ML projects. • Built training datasets for machine learning initiatives. • Supported dataset readiness for model development. • Assisted with training-oriented processes for labeling and curation.

2020 - 2021

Education

Work History