b
buagumel

Baffa U.

@buagumel
Nigeria
English, Hausa
About me
Hi, I'm Baffa Usman! A professional Data Annotator with experience in image, text, and audio annotation for AI and machine learning models. I specialize in high-quality labeling, data categorization, and dataset preparation to enhance model accuracy. With a keen eye for detail and efficiency, I have worked on various annotation projects, ensuring precise and reliable data for AI applications. Let’s collaborate to refine your datasets and improve your AI models!... Read more

Skills

b
buagumel
Baffa U.
Offline • 
Average response time: 29 hours

See my services

Data Labeling & Annotation
I will tag, annotate, and label your images to bring ai to life
From$5 / projectMore details
Data Labeling & Annotation
I will annotate images for ai and computer vision projects
From$5 / projectMore details

Work experience

Mercor

Generalist Expert (Ai Trainer)

Mercor • Freelance

May 2026 - Jul 2026 • 2 mos

Worked as a Generalist Expert (AI Trainer) at Mercor, evaluating and improving AI-generated responses through expert feedback, fact-checking, reasoning assessment, and quality evaluation. Reviewed diverse tasks, identified errors and inconsistencies, and provided clear feedback to help improve AI model accuracy, reasoning, and overall performance.