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Williams Mendez

Williams Mendez

AI Trainer | Prolific/DataAnnotation/Handshake

Argentina flagRosario, Argentina
$8.00/hrIntermediateOtherData Annotation TechScale AI

Key Skills

Software

Other
Data Annotation TechData Annotation Tech
Scale AIScale AI
LabelboxLabelbox

Top Subject Matter

General/Multiple Domains
Data Type

Top Data Types

TextText

Top Task Types

Classification
Object Detection
Text Generation
Question Answering
Text Summarization
Transcription
Evaluation Rating
Data Collection
Prompt Response Writing SFT

Freelancer Overview

I've worked as an AI Trainer in Prolific, DataAnnotation, Handshake, I focused on AI Response Evaluation, Content Ratiog, Quality Assesment of AI Responses and Labeling. I've also gained experience in Data Type by evaluating AI-generated responses, identifying inaccuracies, and ensuring consistency.

IntermediateEnglishSpanish

Labeling Experience

AI Trainer | Prolific/DataAnnotation/Handshake

OtherText
As an AI Data Rater, AI Response Reviewer, and AI Quality Analyst at Prolific/DataAnnotation/Handshake, I have been responsible for evaluating and rating AI-generated responses. My work involves assessing the accuracy, relevance, and coherence of text generated by language models. I ensure quality standards are met by reviewing, annotating, and providing detailed feedback on various outputs. • Evaluated the appropriateness and accuracy of AI-generated text across diverse topics. • Reviewed and rated AI responses based on established quality guidelines and rubrics. • Annotated text with corrections and detailed justifications to improve future model performance. • Collaborated with cross-functional teams to inform ongoing quality improvement initiatives.

As an AI Data Rater, AI Response Reviewer, and AI Quality Analyst at Prolific/DataAnnotation/Handshake, I have been responsible for evaluating and rating AI-generated responses. My work involves assessing the accuracy, relevance, and coherence of text generated by language models. I ensure quality standards are met by reviewing, annotating, and providing detailed feedback on various outputs. • Evaluated the appropriateness and accuracy of AI-generated text across diverse topics. • Reviewed and rated AI responses based on established quality guidelines and rubrics. • Annotated text with corrections and detailed justifications to improve future model performance. • Collaborated with cross-functional teams to inform ongoing quality improvement initiatives.

2025 - Present

Education

E

Escuela secundaria Santo Domingo Savio

High School Diploma, Social Sciences and Humanities

High School Diploma
2016 - 2021
F

Facultad de ciencias exactas ingeniería y agrimensura - UNR

Bachelor of Science, Industrial Engineering

Bachelor of Science
2022

Work History

L

Local Grocery Store

Retail Assistant

Rosario
2024 - Present
G

Grocery Store

Retail Assistant

Rosario
2022 - 2023