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emmanuel_ezek

Emmanuel E

@emmanuel_ezek

Data Analyst

Nigeria
English
About me
I am a Data Analyst with a Master's Degree in Data Analytics and 5 years of experience in data cleaning, reporting, and dashboard development. I am skilled in Excel, SQL, and Power BI, with expertise in data annotation and transforming raw data into actionable insights to support business decision-making.... Read more

Skills

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emmanuel_ezek
Emmanuel E
Offline • 

See my services

BI Analytics
I will data analysis, dashboards and reports in excel, sql and power bi
From$20 / projectMore details
Data Cleaning
I will clean, format and organize your excel data
From$15 / projectMore details

Work experience

Outlier

AI Data Evaluator

Outlier • Freelance

Jan 2026 - Present • 10 mos

Evaluated AI-generated responses for accuracy, relevance, and quality. Analysed text and data samples to identify errors and inconsistencies, providing written justifications. Compared and ranked AI outputs using structured rubrics and conducted quality assurance checks on annotated datasets to ensure reliability for AI training.