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Hi, I'm Mary Wangui Njeri, an AI Data Analyst and AI Training Specialist based in Nairobi, Kenya, with experience supporting large language models, verification, and dataset quality assurance. I enjoy collaborating with global remote teams to deliver high-quality data for AI training and evaluation. I have a strong background in statistics and data analytics, and I use my skills in analyzing structured and unstructured data, validating model outputs, and improving data quality pipelines to help organizations build reliable AI systems.…Hi, I'm Mary Wangui Njeri, an AI Data Analyst and AI Training Specialist based in Nairobi, Kenya, with experience supporting large language models, verification, and dataset quality assurance. I enjoy collaborating with global remote teams to deliver high-quality data for AI training and evaluation. I have a strong background in statistics and data analytics, and I use my skills in analyzing structured and unstructured data, validating model outputs, and improving data quality pipelines to help organizations build reliable AI systems.

Mary Wangui Njeri

Data Scientist, Data Analyst, AI Engineer, +2

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Hi, I'm Mary Wangui Njeri, an AI Data Analyst and AI Training Specialist based in Nairobi, Kenya, with experience supporting large language models, verification, and dataset quality assurance. I enjoy collaborating with global remote teams to deliver high-quality data for AI training and evaluation. I have a strong background in statistics and data analytics, and I use my skills in analyzing structured and unstructured data, validating model outputs, and improving data quality pipelines to help organizations build reliable AI systems.…Hi, I'm Mary Wangui Njeri, an AI Data Analyst and AI Training Specialist based in Nairobi, Kenya, with experience supporting large language models, verification, and dataset quality assurance. I enjoy collaborating with global remote teams to deliver high-quality data for AI training and evaluation. I have a strong background in statistics and data analytics, and I use my skills in analyzing structured and unstructured data, validating model outputs, and improving data quality pipelines to help organizations build reliable AI systems.

Available to hire

Hi, I’m Mary Wangui Njeri, an AI Data Analyst and AI Training Specialist based in Nairobi, Kenya, with experience supporting large language models, verification, and dataset quality assurance. I enjoy collaborating with global remote teams to deliver high-quality data for AI training and evaluation.

I have a strong background in statistics and data analytics, and I use my skills in analyzing structured and unstructured data, validating model outputs, and improving data quality pipelines to help organizations build reliable AI systems.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

English

Fluent

Swahili

Fluent

German

Intermediate

Work Experience

AI Training & Evaluation Specialist at Turing

January 1, 2025 - Present

Evaluate and compare AI model responses for reasoning quality, factual accuracy, and task completion. Perform claim verification and hallucination detection to improve reliability of LLM outputs. Provide structured feedback to refine model behavior and improve dataset quality. Apply complex linguistic and technical guidelines across multiple AI data tasks. Conduct quality checks and resolve ambiguous cases to maintain high accuracy standards. Support multilingual and structured dataset labeling workflows for global AI projects.

AI Data Annotator (Freelance) at RWS Moravia

January 1, 2024 - January 1, 2025

Performed data annotation and quality checks, contributing to AI training data and evaluation pipelines.

Data Analyst at Momentum

January 1, 2021 - January 1, 2024

Analyzed structured and unstructured datasets to generate insights for reporting and business decisions. Cleaned and validated datasets to improve data integrity and reporting accuracy. Produced analytical documentation and reports used by internal teams and management.

Data Entry Specialist Trainee at Kenya National Bureau of Statistics (KNBS)

January 1, 2020 - January 1, 2021

Collected, coded, and validated national census and survey datasets. Maintained strict quality and confidentiality standards in government statistical work.