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Matheus Santos Vieira

Matheus Santos Vieira

Technical Support Specialist - IT Services

BRAZIL flag
Barueri, Brazil
Intermediate

Key Skills

Software

No software listed

Top Subject Matter

No subject matter listed

Top Data Types

No data types listed

Top Label Types

No label types listed

Freelancer Overview

I am an IT professional with hands-on experience in technical support, system installation, and hardware troubleshooting, and I am passionate about advancing my skills in programming and artificial intelligence. My background includes working with a wide range of technologies such as Python, Java, JavaScript, C++, and MySQL, as well as modern frameworks like React and tools like Git, Figma, and DevOps practices. I have completed coursework in modern AI and am eager to apply my technical expertise and attention to detail to data labeling, annotation, and AI training data projects. I am committed to delivering high-quality, accurate datasets that support machine learning initiatives, leveraging my strong organizational skills and familiarity with both software and hardware environments.

Intermediate

Labeling Experience

AI Output Evaluator (Human-in-the-loop)

TextEvaluation Rating
Evaluated and improved responses generated by AI models as part of the Human-in-the-loop process. Applied specific evaluation criteria to assess the relevance, accuracy, and quality of AI outputs. Feedback directly contributed to model refinement and performance improvements.• Rated AI-generated responses for accuracy and relevance. • Provided targeted feedback for model improvement. • Followed Human-in-the-loop protocols for quality assurance. • Helped ensure compliance with standardization criteria.

Evaluated and improved responses generated by AI models as part of the Human-in-the-loop process. Applied specific evaluation criteria to assess the relevance, accuracy, and quality of AI outputs. Feedback directly contributed to model refinement and performance improvements.• Rated AI-generated responses for accuracy and relevance. • Provided targeted feedback for model improvement. • Followed Human-in-the-loop protocols for quality assurance. • Helped ensure compliance with standardization criteria.

Not specified

Audio Data Transcriber & Reviewer (AI Training)

AudioTranscription
Transcribed and reviewed audio recordings to enhance speech recognition models. Ensured transcriptions matched audio with high accuracy and followed formatting standards. Assisted in the development of robust audio processing datasets.• Transcribed audio for speech recognition AI. • Reviewed and corrected transcriptions for accuracy. • Maintained formatting consistency as per guidelines. • Contributed to dataset quality and diversity.

Transcribed and reviewed audio recordings to enhance speech recognition models. Ensured transcriptions matched audio with high accuracy and followed formatting standards. Assisted in the development of robust audio processing datasets.• Transcribed audio for speech recognition AI. • Reviewed and corrected transcriptions for accuracy. • Maintained formatting consistency as per guidelines. • Contributed to dataset quality and diversity.

Not specified

AI Text Data Classifier & Evaluator

TextClassification
Annotated and classified text data for sentiment analysis, content categorization, and moderation. Validated automated responses and contributed to quality control of textual AI outputs. Maintained attention to detail and standardization throughout the process.• Performed text classification and categorization. • Moderated content based on predefined guidelines. • Evaluated and validated AI-generated responses. • Contributed to improving reliability of AI text models.

Annotated and classified text data for sentiment analysis, content categorization, and moderation. Validated automated responses and contributed to quality control of textual AI outputs. Maintained attention to detail and standardization throughout the process.• Performed text classification and categorization. • Moderated content based on predefined guidelines. • Evaluated and validated AI-generated responses. • Contributed to improving reliability of AI text models.

Not specified

AI Data Annotation Specialist (Images)

ImageBounding Box
Image annotation was performed using both bounding boxes and segmentation techniques. Tasks involved delineating objects and regions in various images for AI model training. Strict quality criteria were applied throughout the annotation process.• Applied bounding box and polygonal segmentation. • Ensured data consistency and accuracy for model performance. • Used quality control and standardization guidelines. • Achieved productivity targets consistently.

Image annotation was performed using both bounding boxes and segmentation techniques. Tasks involved delineating objects and regions in various images for AI model training. Strict quality criteria were applied throughout the annotation process.• Applied bounding box and polygonal segmentation. • Ensured data consistency and accuracy for model performance. • Used quality control and standardization guidelines. • Achieved productivity targets consistently.

Not specified

Education

C

Cruzeiro do Sul

Bachelor of Science, Systems Analysis and Development

Bachelor of Science
2025 - 2027
I

ITB Brasílio Flores De Azevedo

Diploma, Information Technology

Diploma
2021 - 2024

Work History

S

Selbetti

IT Technical Assistant

Barueri
2024 - Present