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G

Gonzalo Arias

Multilingual AI Tutor & Data Annotator (Freelance)

SPAIN flag
Madrid, Spain
$20.00/hrIntermediateData Annotation TechMercorOneforma

Key Skills

Software

Data Annotation TechData Annotation Tech
MercorMercor
OneFormaOneForma
SuperAnnotateSuperAnnotate
Internal/Proprietary Tooling

Top Subject Matter

Large Language Model (LLM) Evaluation
Multilingual AI Tutoring
Generative AI Evaluation

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Classification
Fine Tuning
Transcription
Evaluation Rating
Prompt Response Writing SFT
RLHF
Object Detection

Freelancer Overview

Multilingual AI Tutor & Data Annotator (Freelance). Brings 11+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal and Proprietary Tooling. AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating, Safety, Images, Video.

IntermediateEnglishSpanishItalian

Labeling Experience

Multilingual AI Tutor & Data Annotator (Freelance)

Text
As a Multilingual AI Tutor & Data Annotator, I evaluate and annotate datasets for supervised fine-tuning and RLHF pipelines. My work includes model response rating, multilingual dataset annotation, and quality assessment in both English and Spanish. I also contribute to multimodal evaluation tasks and ensure compliance with content policy. • Evaluated LLM-generated responses for reasoning, factuality, tone, bias, and policy compliance. • Annotated multilingual datasets to support RLHF workflows. • Identified hallucinations and logical inconsistencies in open-ended outputs. • Provided structured assessments and feedback for model improvement.

As a Multilingual AI Tutor & Data Annotator, I evaluate and annotate datasets for supervised fine-tuning and RLHF pipelines. My work includes model response rating, multilingual dataset annotation, and quality assessment in both English and Spanish. I also contribute to multimodal evaluation tasks and ensure compliance with content policy. • Evaluated LLM-generated responses for reasoning, factuality, tone, bias, and policy compliance. • Annotated multilingual datasets to support RLHF workflows. • Identified hallucinations and logical inconsistencies in open-ended outputs. • Provided structured assessments and feedback for model improvement.

2024 - Present

Language Data Annotator – Generative AI (TransPerfect)

Text
As a Language Data Annotator for Generative AI at TransPerfect, I annotated and reviewed multilingual AI outputs to ensure precision and adherence to safety standards. My responsibilities included cross-lingual validation and QA of generative model outputs. I also provided structured feedback to support RLHF training pipelines. • Annotated and reviewed English and Spanish generative model outputs for semantic accuracy. • Performed cross-lingual validation to ensure cultural and contextual relevance. • Applied AI safety and content moderation standards in every task. • Delivered feedback for use in RLHF processes and model fine-tuning.

As a Language Data Annotator for Generative AI at TransPerfect, I annotated and reviewed multilingual AI outputs to ensure precision and adherence to safety standards. My responsibilities included cross-lingual validation and QA of generative model outputs. I also provided structured feedback to support RLHF training pipelines. • Annotated and reviewed English and Spanish generative model outputs for semantic accuracy. • Performed cross-lingual validation to ensure cultural and contextual relevance. • Applied AI safety and content moderation standards in every task. • Delivered feedback for use in RLHF processes and model fine-tuning.

2024 - 2026

Education

U

Universidad Complutense de Madrid

Bachelor of Arts, English Studies

Bachelor of Arts
2009 - 2014
U

Universidad Complutense de Madrid

Certificate in Translation, Translation

Certificate in Translation
2013 - 2013

Work History

F

Freelance

3D Artist

Madrid
2022 - Present
F

Freelance

English Teacher, Linguist and 3D Artist

Madrid
2017 - Present