Chigozie O.

Key Skills

Software

Toloka

Top Subject Matter

Multilingual text data quality assurance and AI/system output evaluation

AI content evaluation and dataset annotation for machine learning

Legal Services & Contract Review

Top Data Types

Text

Image

Video

Top Task Types

Bounding Box

Segmentation

Object Detection

Text Generation

Question Answering

Text Summarization

Transcription

Computer Programming/Coding

Prompt + Response Writing (SFT)

Data Collection

Freelancer Overview

Data Operations & IT Specialist — data review, auditing, and multilingual output quality evaluation at Vodacom Mozambiqu. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Bachelor’s Degree, Nnamdi Azikiwe University (2018). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Freelance Data Annotator & Content Evaluator — English dataset labeling and AI-generated content evaluation (remote)

OtherText

The applicant annotated, categorized, and evaluated English-language datasets used for AI model training and machine learning projects. • Labeled and categorized datasets intended for AI training. • Evaluated AI-generated content for natural language quality, contextual accuracy, grammar, tone, and guideline compliance. • Applied detailed project instructions consistently while meeting quality and deadline requirements. • Worked independently on remote projects while maintaining reliable communication and productivity.

2024 - Present

Data Operations & IT Specialist — data review, auditing, and multilingual output quality evaluation at Vodacom Mozambique

Text

The applicant performed quality review and evaluation of multilingual digital and text-based data to ensure compliance with internal quality standards. • Reviewed and audited large volumes of text/digital data for accuracy and standard compliance. • Evaluated multilingual system outputs to detect mistranslations, grammatical errors, inconsistencies, and formatting issues. • Supported data quality assurance by identifying recurring issues and recommending workflow improvements. • Collaborated with technical teams to optimize automated data workflows and verification processes.

2022 - Present

Education

Work History