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David Bassey

@davidbassey

AI data annotation specialist focused on improving NLP/LLM performance and data quality.

Nigeria
Message

What I'm looking for

I seek senior roles where I can lead data annotation and quality programs for NLP/LLM, working in collaborative, growth-focused AI teams that value accuracy, scalable processes, and impact.

I am an AI data annotation specialist and NLP/LLM practitioner with extensive experience creating, verifying, and improving datasets for machine learning systems. I have led and delivered data labeling and quality programs across multiple projects and clients, leveraging tools for text and image annotation and driving measurable improvements in AI relevance and performance.

My background includes founder-level leadership of a data-labeling services company, hands-on roles as a senior data quality specialist and evaluator for search and generative AI, and technical proficiency in Python, AWS, Tableau, and MATLAB. I combine analytics, project oversight, and continuous quality improvement to scale annotation operations and ensure high-fidelity training data for NLP and ML products.

Experience

Work history, roles, and key accomplishments

RX
Current

Chief Executive Officer

Rater X

Jul 2020 - Present (5 years 2 months)

Founded and lead a data annotation and labeling services company focused on African languages, overseeing operations, strategy, and delivery of culturally accurate datasets for AI innovators.

Cohere logoCO

Senior Data Quality Specialist

Jan 2024 - Dec 2024 (11 months)

Led data quality efforts for AI models, defining evaluation criteria and improving dataset fidelity to enhance language model outputs over a one-year engagement.

Education

Degrees, certifications, and relevant coursework

AU

Akwa Ibom State University

Bachelor's degree

Bachelor's degree from Akwa Ibom State University; coursework and major not specified in resume.

Tech stack

Software and tools used professionally

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