Nyx R.

Key Skills

Software

Appen

Top Subject Matter

AI evaluation and e-commerce data quality assurance

AI training and evaluation dataset annotation

Top Data Types

Text

Image

Document

Top Task Types

RLHF

Data Collection

Object Detection

Text Generation

Text Summarization

Fine-tuning

Freelancer Overview

Data Annotator/ QA Expert at Mindrift (remote). Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include N, A, and Appen. Education includes Master of Arts, University of Nairobi (2024) and Bachelor of Arts, University of Nairobi (2024). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Data Annotator (AI Evaluation Project) at Appen (remote)

AppenText

Annotated datasets for AI/ML training and evaluation, ensuring outputs followed project guidelines. Performed checks for data accuracy and consistency, reporting ambiguities and inconsistencies found during review. Applied judgment to label complex content appropriately for model training. Maintained required quality thresholds in remote, project-based work. • Labeled AI/ML training and evaluation datasets • Ensured accuracy, consistency, and guideline adherence • Identified and reported ambiguities/inconsistencies • Applied judgment for complex labeling

2025 - 2025

Data Annotator/ QA Expert at Mindrift (remote)

Text

Evaluated search results to support algorithm improvement and verified product categorization accuracy on e-commerce data. Assessed AI responses with a focus on safety, helpfulness, and accuracy while maintaining quality expectations. Reviewed other annotators’ work and provided feedback to improve consistency with labeling guidelines. • Evaluated search results for relevance • Verified e-commerce product categorization • Rated AI responses for safety/helpfulness/accuracy • Audited and provided annotator feedback

2023 - 2025

Education

Work History