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Leandro Wagner

Leandro Wagner

LLM Evaluation and Text Generation Specialist in English & Spanish

ARGENTINA flag
Ushuaia, Argentina
$15.00/hrIntermediateCVATData Annotation TechImerit

Key Skills

Software

CVATCVAT
Data Annotation TechData Annotation Tech
iMeritiMerit
LabelboxLabelbox
RemotasksRemotasks
Scale AIScale AI
Snorkel AISnorkel AI
TelusTelus

Top Subject Matter

No subject matter listed

Top Data Types

ImageImage
TextText

Top Label Types

Bounding Box
Data Collection
Entity Ner Classification
Segmentation
Text Summarization

Freelancer Overview

Experienced AI Data Specialist with a focus on Spanish-language content, combining expertise in PII/NER data annotation, AI model quality assurance, and multilingual content creation. Skilled in handling sensitive data for legal and financial sectors, I have led projects such as PII tagging of Spanish text/image snippets at Ilkerit Technology and human evaluation (XSTS) for AI language models at RWS Group, ensuring compliance and linguistic accuracy. My work at Outlier, training AI models for Spanish writers, further honed my ability to refine generative outputs and adapt tools for localization. What sets me apart is my multidisciplinary approach: blending technical proficiency in data labeling tools with editorial rigor as a translator and content writer. I excel in identifying nuanced errors in AI-generated Spanish text, optimizing model performance through meticulous QA processes, and delivering culturally relevant content. My fluency in Spanish, strategic problem-solving, and collaborative agility enable me to bridge AI development with real-world usability across industries like media, customer service, and education.

IntermediateSpanishPortugueseFrench

Labeling Experience

No Data Labeling experience added

Leandro W. hasn’t added any AI Training or Data Labeling experience to their OpenTrain profile yet.

Education

U

Universidad Autónoma De Entre Ríos

Bachelor's Degree, Business Administration And Management, General

Bachelor's Degree
2025

Work History

B

Babelcube

Translator

N/A
2025 - Present
F

Freelance

Content Writer

Remote
2019 - 2024