Sa Z.

Key Skills

Software

Don't disclose

Top Subject Matter

LLM response evaluation and AI policy compliance

AI training data evaluation (LLM outputs, classifications, reasoning)

Machine learning dataset labeling (text content)

Top Data Types

Text

Image

Document

Top Task Types

Classification

Freelancer Overview

AI Training & Data Annotation Specialist, CrowGen (Remote). Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Don't disclose. Education includes Master of Science, University of Sunderland (2023). AI-training focus includes data types such as Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

AI Training & Data Annotation Specialist, CrowGen (Remote)

Don't discloseText

Evaluated and ranked large volumes of LLM outputs for correctness and alignment. Assessed factual accuracy, reasoning depth, and policy compliance while applying consistent quality criteria. Maintained high annotation-grade accuracy across ongoing assessment tasks.•Reviewed 1,500+ LLM responses weekly using predefined rubrics.•Applied quality scoring to support downstream model improvement.•Monitored and sustained overall annotation accuracy above 98%.•Ensured labeled outputs met compliance and safety requirements.

2025 - 2026

Research Participant & Data Contributor, Prolific (Remote)

Don't discloseText

Completed AI training and evaluation tasks to improve dataset quality for machine learning projects. Evaluated LLM responses and performed text classification and reasoning-related assessment tasks. Followed annotation guidelines to achieve consistent results and high approval ratings.•Completed 350+ AI training/evaluation tasks across academic and commercial research.•Evaluated LLM responses, text classifications, and reasoning outputs.•Maintained a task approval rating above 95%.•Contributed labeled data to support model training and dataset refinement.

2024 - 2024

Machine Learning Data Labeler, Fiverr (Remote)

Don't discloseTextClassification

Performed machine learning data labeling with a focus on quality control and consistency. Labeled large-scale datasets including product descriptions, customer reviews, and related text content. Applied attention to detail to ensure accuracy before dataset submission.•Labeled 20,000+ data points spanning product descriptions and customer reviews.•Implemented quality control processes to maintain labeling consistency.•Supported dataset management through accurate and repeatable labeling.•Worked in a remote, fast-paced environment emphasizing guideline compliance.

2023 - 2024

Education

Work History