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Cheni Castillo

Cheni Castillo

Data Analyst - Digital Mapping and AI Evaluation

Mexico flagCiudad de México, Mexico
$20.00/hrIntermediateLabelboxLabel StudioRemotasks

Key Skills

Software

LabelboxLabelbox
Label StudioLabel Studio
RemotasksRemotasks
TelusTelus

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
Computer Code ProgrammingComputer Code Programming
Geospatial Tiled ImageryGeospatial Tiled Imagery
ImageImage
TextText
VideoVideo

Top Task Types

Action Recognition
Classification
Data Collection
Evaluation Rating
Function Calling
Text Generation
Transcription

Freelancer Overview

I am a detail-oriented and adaptable professional with hands-on experience in data analysis, AI evaluation, and data management. My roles as a Data Analyst at Telus International and AI Evaluation Specialist at Alignerr & Outlier have given me a strong foundation in verifying and annotating digital map data, evaluating large language model outputs for accuracy and coherence, and providing structured feedback to improve AI systems. I am skilled in Python, SQL, Microsoft Office, and productivity tools like Notion and ChatGPT, and I have worked extensively with sensitive information, ensuring data quality and organization. My background in research and scientific documentation has strengthened my analytical skills and attention to detail, making me well-equipped to support high-quality data labeling and AI training projects across diverse domains. I am fluent in English and Spanish and thrive in fast-paced, collaborative environments where precision and continuous learning are valued.

IntermediateFrenchEnglishSpanish

Labeling Experience

Telus

Data Analyst

TelusGeospatial Tiled ImageryEvaluation Rating
Reviewing accuracy on text prediction, suggestions and general information.

Reviewing accuracy on text prediction, suggestions and general information.

2025
Labelbox

Transcription reviewer

LabelboxAudioTranscription
Transcribe/Check accuracy in transcription in person-to-person conversations or person-to-AI conversations.

Transcribe/Check accuracy in transcription in person-to-person conversations or person-to-AI conversations.

2025

Education

N

National Autonomous University of Mexico

Bachelor of Science, Physics

Bachelor of Science
2016 - 2020
N

National Preparatory School N°6 'Antonio Caso'

High School Diploma, General Education

High School Diploma
2013 - 2013

Work History

S

Scubadiving School UNAM

Diving Instructor Assistant

Mexico City
2024 - Present
R

Ranek

Cocoa Product Production Assistant

Mexico City
2022 - 2023