Nnaji A.

Key Skills

Software

Appen

Top Subject Matter

AI training datasets

AI training and data enrichment

Legal Services & Contract Review

Top Data Types

Text

Image

Document

Top Task Types

Classification

Entity (NER) Classification

Freelancer Overview

AI Data Annotation Specialist – Uolo V2 (SRT). Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N and A. Education includes Bachelor of Science, National Open University of Nigeria (NOUN) (2021). AI-training focus includes data types such as Text and labeling workflows including Classification and Entity (NER) Classification.

Labeling Experience

Data Annotator – Atlas Capture

TextEntity (NER) Classification

Annotated and categorized datasets for AI model training with a focus on text classification and data enrichment. Completed tasks by adhering strictly to annotation rules and meeting quality benchmarks. Worked independently to deliver consistent results against daily and weekly targets. • Labeled and categorized training data • Performed text classification and enrichment tasks • Ensured guideline compliance and quality benchmarks • Met daily and weekly productivity targets

2024 - 2024

AI Data Annotation Specialist – Uolo V2 (SRT)

TextClassification

Performed high-volume AI data annotation tasks while ensuring accuracy and consistency across each assignment. Followed detailed project guidelines to produce labeled outputs that met predefined quality standards. Reviewed and validated annotated data to maintain low error rates and achieve productivity targets. • Followed annotation rules and schema requirements • Validated outputs against project standards • Maintained throughput while reducing mistakes • Adapted to new task types and annotation tools

2024 - 2024

Education

Work History