María Del Rocío Samayoa Camón

Key Skills

Software

Doccano

CVAT

Clickworker

Data Annotation Tech

Label Studio

Mindrift

OneForma

Appen

Top Subject Matter

AI Training Data

Nlp Domain Expertise

LLM Output

Top Data Types

Text

Audio

Image

Top Task Types

Transcription

Entity Ner Classification

Classification

Freelancer Overview

AI Data Annotation and Evaluation Services (Freelance). Brings 1+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Doccano. AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

AI Data Annotation and Evaluation Services (Freelance)

DoccanoText

I annotated and evaluated AI training data including text, audio, and images to improve model performance and reliability. My role included relevance ranking, quality assessment, and validation of AI/LLM outputs for linguistic and contextual accuracy. I also curated datasets and optimized corpus content for machine learning training and evaluation. • Labeled and assessed a variety of data types, ensuring linguistic accuracy. • Evaluated AI-generated outputs for reliability and contextual meaning. • Conducted linguistic analysis for NLP-driven applications. • Supported the curation and optimization of data used in machine learning workflows.

I annotated and evaluated AI training data including text, audio, and images to improve model performance and reliability. My role included relevance ranking, quality assessment, and validation of AI/LLM outputs for linguistic and contextual accuracy. I also curated datasets and optimized corpus content for machine learning training and evaluation. • Labeled and assessed a variety of data types, ensuring linguistic accuracy. • Evaluated AI-generated outputs for reliability and contextual meaning. • Conducted linguistic analysis for NLP-driven applications. • Supported the curation and optimization of data used in machine learning workflows.

2026 - Present

Image Annotation Specialist

CVATImageClassification

At SIGMA AI, I contributed to image annotation projects as part of data labeling initiatives for machine learning. My main responsibilities included image classification, annotation, and supporting the data pipeline for computer vision tasks. I ensured sensitive and high-quality handling of image data throughout project lifecycles. • Applied annotation with CVAT for diverse image datasets. • Supported AI image labeling pipeline and documentation. • Maintained security with sensitive and restricted visual content. • Collaborated with team members on quality assurance and process improvement.

At SIGMA AI, I contributed to image annotation projects as part of data labeling initiatives for machine learning. My main responsibilities included image classification, annotation, and supporting the data pipeline for computer vision tasks. I ensured sensitive and high-quality handling of image data throughout project lifecycles. • Applied annotation with CVAT for diverse image datasets. • Supported AI image labeling pipeline and documentation. • Maintained security with sensitive and restricted visual content. • Collaborated with team members on quality assurance and process improvement.

2022 - 2025

Entity Recognition & Text Annotation Specialist

TextEntity Ner Classification

During my tenure at SIGMA AI, I specialized in entity recognition and text data annotation for NLP and ML projects. Using advanced annotation platforms, I detected and reviewed named entities across diverse text corpora in both Spanish and English. I focused on maintaining accuracy, consistency, and compliance with project guidelines. • Utilized INCEpTION and Doccano for NER and text annotation tasks. • Worked on personal and opinion-based content creation for machine learning. • Reviewed and refined entities across multiple text domains and fields. • Supported data quality control and linguistic QA processes.

During my tenure at SIGMA AI, I specialized in entity recognition and text data annotation for NLP and ML projects. Using advanced annotation platforms, I detected and reviewed named entities across diverse text corpora in both Spanish and English. I focused on maintaining accuracy, consistency, and compliance with project guidelines. • Utilized INCEpTION and Doccano for NER and text annotation tasks. • Worked on personal and opinion-based content creation for machine learning. • Reviewed and refined entities across multiple text domains and fields. • Supported data quality control and linguistic QA processes.

2022 - 2025

Transcriptionist, LQA & Data Annotation Specialist

CVATAudioTranscription

I worked as a transcriptionist, LQA, and data annotation specialist at SIGMA AI, focusing on audio transcription and quality assurance for AI model training. My tasks included audio data labeling and classification, entity recognition on text, and image annotation. I consistently ensured data quality and confidentiality across all assignments. • Transcribed and proofread Spanish and English audio for speech recognition model training. • Performed entity recognition (NER) and reviewed text corpora using INCEpTION and Doccano. • Labeled and classified sensitive audio datasets for machine learning. • Annotated images using CVAT for computer vision data.

I worked as a transcriptionist, LQA, and data annotation specialist at SIGMA AI, focusing on audio transcription and quality assurance for AI model training. My tasks included audio data labeling and classification, entity recognition on text, and image annotation. I consistently ensured data quality and confidentiality across all assignments. • Transcribed and proofread Spanish and English audio for speech recognition model training. • Performed entity recognition (NER) and reviewed text corpora using INCEpTION and Doccano. • Labeled and classified sensitive audio datasets for machine learning. • Annotated images using CVAT for computer vision data.

2022 - 2025

Education

Work History