Derick Z.

Key Skills

Software

Toloka

Top Subject Matter

AI/LLM evaluation

prompt engineering

RLHF alignment

Top Data Types

Text

3D Sensor

Top Task Types

Classification

Entity (NER) Classification

Freelancer Overview

AI Data Trainer & Annotation Specialist (Freelance / Crowdsourcing Platforms). Brings 3+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Toloka, Atlas Capture, and Luel AI. Education includes Bachelor of Science in Mathematics, University of Nairobi and Kenya Certificate of Secondary Education (KCSE), Nairobi School. AI-training focus includes data types such as Text and labeling workflows including Classification, Fine Tuning, and Named Entity Recognition.

Labeling Experience

AI Data Trainer & Annotation Specialist (Freelance / Crowdsourcing Platforms)

TolokaTextClassificationEntity (NER) Classification

Assessment and ranking of model outputs for quality dimensions including factual accuracy, logical consistency, safety, and language fluency; edge-case prompt creation for robustness evaluation; reference response generation for fine-tuning datasets.

2024 - Present

Education

Work History