Oluwatosin A.

Key Skills

Software

Appen

CrowdSource

CVAT

SuperAnnotate

Top Subject Matter

Nlp Domain Expertise

sentiment analysis

AI training datasets

Top Data Types

Text

Image

Document

Top Task Types

Data Collection

Transcription

Text Summarization

Object Detection

Text Generation

Prompt + Response Writing (SFT)

Red Teaming

Freelancer Overview

Data Annotation & AI/ML Data Training (Generalist). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Bachelor of Science, University of Ilorin. AI-training focus includes data types such as Text and labeling workflows including Entity (NER).

Labeling Experience

Data Annotation & AI/ML Data Training (Generalist)

Text

Experienced in data annotation and AI/ML training through reviewing and validating labeled datasets to improve model accuracy and reduce bias across NLP workflows. Work included tagging and categorising large volumes of text data with a strong focus on precision and consistency during iterative feedback cycles. Contributions support evidence-based ML development and quality control for downstream modeling. • Text annotation for NLP, including labeling/tagging and categorization • Validation and quality checking of existing labels prior to model training • Bias reduction through careful review against labeling guidelines • Iterative refinement via feedback loops to improve label quality

2023 - Present

Education

Work History