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Mafalda Berini

Mafalda Berini

AI Training & Quality Reviewer

Argentina flagBuenos Aires, Argentina
$15.00/hrEntry LevelAppenData Annotation TechMercor

Key Skills

Software

AppenAppen
Data Annotation TechData Annotation Tech
MercorMercor

Top Subject Matter

No subject matter listed

Top Data Types

DocumentDocument
ImageImage
TextText

Top Task Types

Data Collection
Evaluation Rating
Prompt Response Writing SFT
Translation Localization

Freelancer Overview

I have experience working on AI training and data labeling tasks focused on content evaluation, response review and visual data annotation. I have completed assessments and qualification tasks involving image classification, tagging and quality review, ensuring accuracy, consistency and strict adherence to detailed guidelines. I am comfortable analyzing AI-generated outputs and evaluating them for relevance, clarity and correctness.

Entry LevelEnglishSpanish

Labeling Experience

Data Annotation Tech

Response and Review

Data Annotation TechTextEvaluation Rating
Rating AI-generated answers for accuracy, relevance, and factual correctness, particularly in history-related topics. Ensured that all evaluated content met strict quality and guideline standards.

Rating AI-generated answers for accuracy, relevance, and factual correctness, particularly in history-related topics. Ensured that all evaluated content met strict quality and guideline standards.

2025 - 2025

Education

C

Coder House

Community Manager and Publicity, Digital Marketing

Community Manager and Publicity
2021 - 2021

Work History

D

DataAnnotation

AI Trainer

Buenos Aires
2025 - Present
F

Freelance

Community manager

Buenos Aires
2022 - Present