Open to opportunities

Otieno Jafeth

@otienojafeth

Message

I prepare accurate, high-quality training data for AI and machine learning.

Kenya

Message

What I'm looking for

I'm looking for opportunities supporting AI and machine learning projects through accurate data annotation, dataset auditing, quality assurance, and structured data validation.

I've supported AI training projects at Outlier AI and Mindrift.ai by annotating and labeling large-scale image, video, and text datasets. I classify complex data structures, apply detailed guidelines, and maintain accuracy under project deadlines.

I've also audited AI datasets for quality, identifying labeling errors, inconsistencies, and guideline deviations before model training. My Linguistics background and experience with data validation help me deliver organized, reliable training data.

Experience

Work history, roles, and key accomplishments

Data Annotator

Outlier AI

Jan 2024 - Dec 2026 (2 years 11 months)

Annotated and labeled large-scale datasets for AI and machine learning training, performing image, video, and text classification tasks. Maintained high accuracy and consistency while meeting project deadlines.

Data Annotation Data Labeling Quality Assurance Data Tagging Microsoft Word Internet Research Data Verification Time Management