Chizobam E.

Key Skills

Software

Other

Top Subject Matter

Multilingual AI datasets and localization/translation quality

Localization and multilingual annotation support

Machine learning/NLP training data annotation and preprocessing

Top Data Types

Text

Image

Document

Top Task Types

Classification

Freelancer Overview

Senior AI Data Specialist / Annotation Lead, AfriData AI Solutions Ltd. Brings 8+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and Other. Education includes Master of Science, University of Abuja (2018) and Bachelor of Science, Nnamdi Azikiwe University (2014). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Translation.

Labeling Experience

Senior AI Data Specialist / Annotation Lead, AfriData AI Solutions Ltd

Text

Led multilingual AI data annotation and evaluation projects, coordinating end-to-end labeling and quality assurance. Performed pairwise comparisons and ranking evaluations to support model improvement and consistency. Conducted localization and translation quality checks to ensure annotated outputs met linguistic requirements.• Supervised text labeling, evaluation, and guideline compliance• Ran pairwise comparison/ranking workflows for evaluation labels• Oversaw localization/translation quality assurance activities• Collaborated with AI engineers to optimize data workflows

2019 - Present

AI Data Analyst / Localization Specialist, Global Language Technologies

OtherText

Managed multilingual annotation and localization support for AI-oriented datasets. Conducted data collection, preprocessing, and validation prior to labeling activities. Reviewed translated content for linguistic accuracy and metadata consistency.• Supported multilingual data collection and preprocessing for annotation• Performed object tagging and metadata classification tasks• Validated dataset fields and labeling inputs for quality• Reviewed translations for linguistic correctness and adherence

2015 - 2019

Data Annotation Specialist, Digital Insight Analytics

OtherTextClassification

Annotated datasets for machine learning and NLP systems as part of AI training data preparation. Performed text classification and image tagging tasks in line with annotation guidelines. Supported data cleaning and preprocessing to improve label quality and usability for downstream modeling.• Completed text classification annotations for NLP workflows• Performed image tagging to support multimodal training data• Assisted with data cleaning and preprocessing activities• Ensured labeled outputs matched project labeling instructions

2012 - 2015

Education

Work History