Chima F.

Key Skills

Software

Toloka

Labelbox

Micro1

Mercor

Mindrift

Top Subject Matter

AI dataset labeling (image classification, bounding-box labeling, text sentiment)

AI content evaluation and rating for machine learning quality

Legal Services & Contract Review

Top Data Types

Image

Text

Document

Top Task Types

Classification

Evaluation/Rating

Prompt + Response Writing (SFT)

Data Collection

Freelancer Overview

AI Data Annotation Specialist (Toloka Platform · Freelance Remote). Core strengths include Toloka. Education includes Bachelor of Science, University of Ilorin (2022). AI-training focus includes data types such as Image and Text and labeling workflows including Classification, Evaluation, and Rating.

Labeling Experience

AI Content Evaluator (Freelance Remote)

TolokaText

Evaluated AI-generated content for relevance, fluency, factual accuracy, and safety-guideline compliance using multi-dimensional rating rubrics. Flagged edge cases and ambiguous outputs for escalation and provided structured written feedback to guide model improvement. Identified recurring model failure patterns and documented actionable insights to improve quality of responses. • Applied multi-dimensional rating rubrics • Reviewed and rated content for quality and safety • Provided written feedback for model improvement • Documented recurring failure patterns

2022 - Present

AI Data Annotation Specialist (Toloka Platform · Freelance Remote)

TolokaImageClassification

Annotated image data for classification and related tagging tasks in line with client instructions. Reviewed and corrected labeling errors to improve overall dataset consistency and reduce the need for revisions. Adapted to varied annotation schemas and project-specific style guides across client work. • 500+ completed annotation tasks • Performed image classification and tagging • Performed dataset review to correct errors • Maintained quality and guideline adherence

2022 - 2025

Education

Work History