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Josby Fuentes

Josby Fuentes

LLM Evaluation, AI Training and Data Labeling, Medical Writing (10+ Lang)

Guatemala flagGuatemala, Guatemala
$15.00/hrExpertAws SagemakerAnno MageAppen

Key Skills

Software

AWS SageMakerAWS SageMaker
Anno-MageAnno-Mage
AppenAppen
ArgillaArgilla
Axiom AI
ClickworkerClickworker
CloudFactoryCloudFactory
CrowdFlowerCrowdFlower
CrowdSourceCrowdSource
CVATCVAT
Data Annotation TechData Annotation Tech
DataloopDataloop
DatatroniqDatatroniq
DatumboxDatumbox
DatasaurDatasaur
DatatureDatature
DataturkDataturk
Deep SystemsDeep Systems
DiffgramDiffgram
DoccanoDoccano
EncordEncord
Figure EightFigure Eight
Google Cloud Vertex AIGoogle Cloud Vertex AI
HastyHasty
HiveMindHiveMind
HumanaticHumanatic
iMeritiMerit
Img Lab
Kili TechnologyKili Technology
LabelboxLabelbox
LabelImgLabelImg
Label StudioLabel Studio
LightTagLightTag
LionbridgeLionbridge
Mighty AIMighty AI
MindriftMindrift
OneFormaOneForma
OpenCV AI Kit (OAK)OpenCV AI Kit (OAK)
PlaymentPlayment
ProdigyProdigy
Redbrick AIRedbrick AI
RemotasksRemotasks
RoboflowRoboflow
SamaSama
Scale AIScale AI
SlothSloth
Snorkel AISnorkel AI
SuperAnnotateSuperAnnotate
SuperviselySupervisely
Surge AISurge AI
TagtogTagtog
TolokaToloka
TelusTelus
Trilldata Technologies
VoTT
V7 LabsV7 Labs
Internal/Proprietary Tooling

Top Subject Matter

No subject matter listed

Top Data Types

AudioAudio
ImageImage
VideoVideo

Top Task Types

Audio Recording
Bounding Box
Classification
Computer Programming Coding
Diagnosis

Freelancer Overview

I have over 4 years of experience in AI training, data labeling, and annotation across diverse domains including audio, video, medical, legal, and computer programming datasets. Skilled in advanced techniques such as action recognition, segmentation, entity classification, and emotion recognition, I have consistently delivered precise, high-quality training data to support cutting-edge AI research and development projects. My work ensures compliance with industry standards and ethical guidelines across complex fields. With strong programming knowledge and a deep understanding of AI workflows, I excel at managing varied data types and resolving annotation challenges. My keen attention to detail, ability to detect errors and biases, and effective collaboration with AI developers and cross-functional teams contribute to continuous model improvement. This extensive experience makes me a reliable and valuable contributor to scalable and innovative AI training initiatives.

ExpertFrenchGermanKoreanEnglishItalianSpanishJapanesePortugueseChinese Mandarin

Labeling Experience

SuperAnnotate

Speech & Emotion Annotation for Voice Assistant Training

SuperannotateAudioClassificationEmotion Recognition
Labeled and classified thousands of short audio clips for emotion detection, speaker intent, and speech clarity to train conversational AI and voice assistants. Tasks included tagging emotional tone (e.g., neutral, angry, happy), speaker identification, and validating transcriptions.

Labeled and classified thousands of short audio clips for emotion detection, speaker intent, and speech clarity to train conversational AI and voice assistants. Tasks included tagging emotional tone (e.g., neutral, angry, happy), speaker identification, and validating transcriptions.

2024 - 2024
Appen

Speech Recognition & Audio Processing

AppenAudioClassificationEmotion Recognition
Labeled audio clips for speech-to-text training, including emotion and intent recognition. Ensured clean, accurate transcriptions and annotated speech nuances for improved AI voice responsiveness.

Labeled audio clips for speech-to-text training, including emotion and intent recognition. Ensured clean, accurate transcriptions and annotated speech nuances for improved AI voice responsiveness.

2024 - 2024
Scale AI

Healthcare / Medical Imaging

Scale AIImageSegmentationClassification
Annotated medical images such as X-rays and MRIs to identify pathological regions and classify conditions. Worked closely with medical experts to ensure data accuracy and compliance with healthcare standards.

Annotated medical images such as X-rays and MRIs to identify pathological regions and classify conditions. Worked closely with medical experts to ensure data accuracy and compliance with healthcare standards.

2024 - 2024
Lionbridge

Code Snippet Annotation for AI Model Training

LionbridgeComputer Code ProgrammingClassificationEvaluation Rating
Annotated and classified extensive datasets of code snippets to help train AI coding assistants. Responsibilities included tagging function calls, labeling code behavior, and generating prompt-response pairs to fine-tune models.

Annotated and classified extensive datasets of code snippets to help train AI coding assistants. Responsibilities included tagging function calls, labeling code behavior, and generating prompt-response pairs to fine-tune models.

2023 - 2024
Labelbox

Large Language Models (LLM) Evaluation

LabelboxTextEntity Ner ClassificationClassification
Labeled and validated large corpora of text data including entity recognition, question answering pairs, and text summaries to enhance natural language understanding for AI models. Followed strict guidelines to reduce bias and improve relevance.

Labeled and validated large corpora of text data including entity recognition, question answering pairs, and text summaries to enhance natural language understanding for AI models. Followed strict guidelines to reduce bias and improve relevance.

2023 - 2024

Education

U

University of Alberta

Master in Software Engineering and Data Science, Software Engineering and Data Science

Master in Software Engineering and Data Science
2024 - 2025
U

Universidad Galileo

Master, Medical Science - Data Analytics

Master
2023 - 2024

Work History

M

Microsoft Corporation

AI | Machine Learning Engineer

California
2024 - 2025
C

Capgemini

Marketing and Branding Director

California
2023 - 2024