Open to opportunities

UJU MBAERI

@ujumbaeri

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AI data training specialist delivering accurate annotations and model-ready datasets remotely.

Nigeria

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What I'm looking for

I’m looking for remote opportunities where I can train and validate AI data with strict quality control, collaborate clearly with clients, and use Excel/Power BI to deliver accurate, model-ready datasets.

I’m an AI Data Training Specialist focused on data annotation and labeling, AI model training and testing, and transforming raw data into model-ready inputs. I’m detail-oriented with a strong grasp of data entry and analysis, and I prioritize data quality control and assurance through rigorous checks.

In my recent roles with Toloka and Clickworker (2023–2024), I annotated and labeled large datasets for AI model training while ensuring accuracy through consistent quality control processes. I also work as a remote freelancer with Utest, supporting website and app testing (2023–2025), and I communicate effectively with clients using collaboration tools like Slack, Google Meet, and Zoom.

Experience

Work history, roles, and key accomplishments

Remote Freelancer (Testing)

Utest

Jan 2023 - Jan 2025 (2 years)

Delivered website and app testing projects remotely by working with clients to understand requirements and complete tasks to a high standard. Managed work independently and maintained quality through careful, numbers-focused data entry and analysis.

Web Testing Remote Collaboration Data Entry Data Analysis Quality Assurance Google Meet Zoom

AI Data Training Specialist

Toloka and Clickworker

Jan 2023 - Jan 2024 (1 year)

Annotated and labeled large datasets to support AI model training and testing. Performed rigorous quality-control checks to ensure data accuracy and integrity.

Data Annotation Data Labeling AI Model Training AI model testing Data Quality data preprocessing

Education

Degrees, certifications, and relevant coursework

Nnamdi Azikiwe University

Master of Science, Statistics

2013 -

Completed an M.Sc. in Statistics at Nnamdi Azikiwe University. Built a foundation in statistical methods relevant to data analytics and research.

Enugu State University of Science and Technology

Bachelor of Science, Statistics

2005 -

Completed a B.Sc. in Statistics at Enugu State University of Science and Technology. Developed core knowledge of statistical analysis and quantitative problem-solving.