Hi, I'm Bruno Stivanin, an AI Trainer and Data Annotator focused on Brazilian Portuguese. I help train, evaluate, and annotate AI models to improve text quality and reliability. With a background in education as an English Teacher and Online Tutor, I bring patience, clarity, and a user-centric approach to AI data tasks and model evaluation.

Bruno Stivanin

Hi, I'm Bruno Stivanin, an AI Trainer and Data Annotator focused on Brazilian Portuguese. I help train, evaluate, and annotate AI models to improve text quality and reliability. With a background in education as an English Teacher and Online Tutor, I bring patience, clarity, and a user-centric approach to AI data tasks and model evaluation.

Available to hire

Hi, I’m Bruno Stivanin, an AI Trainer and Data Annotator focused on Brazilian Portuguese. I help train, evaluate, and annotate AI models to improve text quality and reliability.

With a background in education as an English Teacher and Online Tutor, I bring patience, clarity, and a user-centric approach to AI data tasks and model evaluation.

See more

Language

Portuguese
Fluent
English
Fluent
Spanish; Castilian
Fluent
French
Beginner

Work Experience

Data Annotator at RWS Group
September 1, 2025 - Present
Annotate data accurately and consistently according to predefined guidelines in the required language. Provide feedback regarding observed patterns in the annotated data and contribute to process improvements. Maintain high attention to detail and quality throughout the annotation process.
AI Trainer for Portuguese at Alignerr
January 1, 2025 - Present
Provide remote AI training for Portuguese language models, specializing in Artificial Intelligence evaluation to enhance model performance.
AI Evaluator at Translated
November 1, 2024 - Present
Conduct remote AI evaluation tasks, focusing on improving AI models.
Remote Brazilian Portuguese Writer for AI Training at Outlier
June 1, 2024 - Present
Train and evaluate AI models to enhance their ability to generate high-quality Brazilian Portuguese text, contributing to data integrity and data entry processes.
Online Tutor at LatinHire
March 1, 2025 - October 9, 2025
Answered and proofread questions from various subjects; delivered remote tutoring.
Private English Teacher at Self-employed
March 1, 2025 - October 9, 2025
Provided private English lessons; gained extensive experience in teaching English as a Second Language.
Administrative Intern at SANASA Campinas
April 30, 2012 - December 30, 2012
Requested services, received and forwarded emails, handled general dispatches, and managed the delivery and receipt of documents, letters, protocols, and memos. Performed general administrative tasks, including telephone and in-person service, and prepared spreadsheets, documents, and reports. Scheduled activities for the Minha Escola na SANASA Program.
Data Annotator/AI Trainer at Abaka AI
October 9, 2025 - Present
Annotate and evaluate image, video, and audio data to support AI model training and improvement.

Education

Technical Course in Human Resources at Senac Mogi Guaçu – SP – Brazil
January 1, 2017 - December 31, 2018
MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - December 31, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC Campinas – Brazil
January 1, 2008 - December 31, 2012
Technical Course in Human Resources at Senac Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018
MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC - Campinas – Brazil
January 1, 2008 - January 1, 2012
Technical Course in Human Resources at Senac Mogi Guaçu – SP
January 1, 2017 - January 1, 2018
MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012
Technical Course in Human Resources at Senac Mogi Guaçu
January 1, 2017 - January 1, 2018
MBA in Marketing Management at ESAMC Campinas
January 1, 2014 - January 1, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC Campinas
January 1, 2008 - January 1, 2012
Technical Course in Human Resources at SENAC Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018
MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012
Technical Course in Human Resources at Senac Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018
MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015
Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012

Qualifications

Add your qualifications or awards here.

Industry Experience

Education, Software & Internet, Professional Services, Other, Media & Entertainment