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Raul Roberto Arellanes Mendoza

Raul Roberto Arellanes Mendoza

Marketing Science Supervisor - Digital Marketing Analytics - Data Annotator

Mexico flagChihuahua, Mexico
$28.00/hrEntry LevelLabelboxData Annotation TechOther

Key Skills

Software

LabelboxLabelbox
Data Annotation TechData Annotation Tech
Other

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
TextText

Top Task Types

Tracking
Prompt Response Writing SFT
Text Generation

Freelancer Overview

I am an experienced data annotator and marketing data analyst with a strong background in transforming raw data into high-quality AI training datasets. My recent work includes reviewing and improving AI-generated content, conducting detailed annotation and quality assessments, and evaluating chatbot conversations to enhance preference ranking models. I am skilled in using tools such as Power BI, Tableau, Google Looker Studio, and Google Analytics, and have experience applying these to streamline reporting and visualization processes. My expertise spans digital marketing, user engagement analysis, and process optimization, and I am committed to ensuring accuracy, clarity, and alignment with project guidelines. With a proven ability to manage teams, automate workflows, and communicate effectively with stakeholders, I bring a comprehensive and detail-oriented approach to data labeling and AI training data projects.

Entry LevelEnglishSpanish

Labeling Experience

Data Annotator Reviewer

OtherTextText Generation
Review Data Annotators work to improve the AI generated content to ensure accuracy, clarity and alignment with guidelines.

Review Data Annotators work to improve the AI generated content to ensure accuracy, clarity and alignment with guidelines.

2025
Data Annotation Tech

Prompt & Rubrics Creation

Data Annotation TechTextPrompt Response Writing SFT
Come up with a hard prompt (summarization, open or closed Q&A, Content Editing/Rewriting) the check if the 3 model answers were localized correctly in Spanish and Mexico, choose one and then create atomic, relevant, self-contained, understandable rubrics.

Come up with a hard prompt (summarization, open or closed Q&A, Content Editing/Rewriting) the check if the 3 model answers were localized correctly in Spanish and Mexico, choose one and then create atomic, relevant, self-contained, understandable rubrics.

2025 - 2025
Labelbox

Audio Annotation

LabelboxAudioTracking
Annotate the start, pause and stop of the user´s utterance as well as label the words for the user and the assistant.

Annotate the start, pause and stop of the user´s utterance as well as label the words for the user and the assistant.

2025 - 2025

Education

U

Universidad La Salle de Chihuahua

Bachelor's Degree in International Trade, International Trade

Bachelor's Degree in International Trade
2008 - 2012

Work History

D

DataAnnotation / e2f / Alignerr

Data Annotator / Reviewer

Chihuahua
2025 - Present
H

Hearts & Science

Account Supervisor

Chihuahua
2022 - 2023