Izunna Nzeaka

Key Skills

Software

Mercor

Toloka

Other

Top Subject Matter

Mathematics Domain Expertise

Physics Domain Expertise

Engineering Domain Expertise

Top Data Types

Text

Image

Video

Top Task Types

RLHF

Classification

Freelancer Overview

AI Training & Technical Content Contributor (Freelance). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mercor, Toloka, and Other. Education includes Bachelor of Engineering, University of Lagos (2023). AI-training focus includes data types such as Text and labeling workflows including RLHF and Classification.

Labeling Experience

AI Training & Technical Content Contributor (Freelance)

MercorTextRLHF

Contributed to AI model training by providing accurate STEM-domain responses and evaluating AI-generated outputs for correctness and clarity. Annotated technical text and code snippets with structured labels to enhance model performance. Ensured high-quality and precise factual accuracy in all labeling tasks. • Performed evaluation and ranking of AI outputs in engineering, mathematics, and physics. • Applied structured annotation to both technical text and code samples. • Maintained rigorous attention to logical consistency and technical communication. • Delivered consistent performance metrics for quality and accuracy.

Contributed to AI model training by providing accurate STEM-domain responses and evaluating AI-generated outputs for correctness and clarity. Annotated technical text and code snippets with structured labels to enhance model performance. Ensured high-quality and precise factual accuracy in all labeling tasks. • Performed evaluation and ranking of AI outputs in engineering, mathematics, and physics. • Applied structured annotation to both technical text and code samples. • Maintained rigorous attention to logical consistency and technical communication. • Delivered consistent performance metrics for quality and accuracy.

2024 - Present

Atlas Capture Certification - Structured Data Entry

OtherTextClassification

Earned certification in Atlas data capture methodologies and structured information entry standards. Developed foundational skills in structured data labeling aligned with Atlas platform requirements. Demonstrated understanding of standardized data structures and quality entry practices. • Completed training in Atlas data structuring. • Practiced entry of structured information on the Atlas platform. • Followed methodologies for high consistency in data labeling. • Gained essential exposure to labeling industry standards.

Earned certification in Atlas data capture methodologies and structured information entry standards. Developed foundational skills in structured data labeling aligned with Atlas platform requirements. Demonstrated understanding of standardized data structures and quality entry practices. • Completed training in Atlas data structuring. • Practiced entry of structured information on the Atlas platform. • Followed methodologies for high consistency in data labeling. • Gained essential exposure to labeling industry standards.

2026 - 2026

Mindrift Toloka Certified Data Labeller

TolokaTextClassification

Completed certification for AI data labeling and quality annotation tasks focused on task accuracy and structured information labeling. Demonstrated ability to adhere to labeling standards and quality requirements on the Toloka platform. Developed competency in applying structured methodologies for annotation consistency. • Underwent rigorous training in AI data annotation workflows. • Practiced labeling and annotating various data types within the Toloka interface. • Assessed quality and compliance in labeled datasets. • Applied standardized criteria to ensure high-quality data labeling.

Completed certification for AI data labeling and quality annotation tasks focused on task accuracy and structured information labeling. Demonstrated ability to adhere to labeling standards and quality requirements on the Toloka platform. Developed competency in applying structured methodologies for annotation consistency. • Underwent rigorous training in AI data annotation workflows. • Practiced labeling and annotating various data types within the Toloka interface. • Assessed quality and compliance in labeled datasets. • Applied standardized criteria to ensure high-quality data labeling.

2025 - 2025

Education

Work History