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.
Skills
Experience Level
Expert
Expert
Expert
Intermediate
Intermediate
Language
Portuguese
Fluent
English
Fluent
Spanish; Castilian
Fluent
French
Beginner
Work Experience
Data Annotator at RWS Group
September 1, 2025 - PresentAnnotate 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 - PresentProvide remote AI training for Portuguese language models, specializing in Artificial Intelligence evaluation to enhance model performance.
AI Evaluator at Translated
November 1, 2024 - PresentConduct remote AI evaluation tasks, focusing on improving AI models.
Remote Brazilian Portuguese Writer for AI Training at Outlier
June 1, 2024 - PresentTrain 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, 2025Answered and proofread questions from various subjects; delivered remote tutoring.
Private English Teacher at Self-employed
March 1, 2025 - October 9, 2025Provided private English lessons; gained extensive experience in teaching English as a Second Language.
Administrative Intern at SANASA Campinas
April 30, 2012 - December 30, 2012Requested 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 - PresentAnnotate 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, 2018MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - December 31, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC Campinas – Brazil
January 1, 2008 - December 31, 2012Technical Course in Human Resources at Senac Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC - Campinas – Brazil
January 1, 2008 - January 1, 2012Technical Course in Human Resources at Senac Mogi Guaçu – SP
January 1, 2017 - January 1, 2018MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012Technical Course in Human Resources at Senac Mogi Guaçu
January 1, 2017 - January 1, 2018MBA in Marketing Management at ESAMC Campinas
January 1, 2014 - January 1, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC Campinas
January 1, 2008 - January 1, 2012Technical Course in Human Resources at SENAC Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012Technical Course in Human Resources at Senac Mogi Guaçu – SP – Brazil
January 1, 2017 - January 1, 2018MBA in Marketing Management at ESAMC Campinas – Brazil
January 1, 2014 - January 1, 2015Bachelor’s in Business Administration (Emphasis on Foreign Trade) at PUC-Campinas – Brazil
January 1, 2008 - January 1, 2012Qualifications
Industry Experience
Education, Software & Internet, Professional Services, Other, Media & Entertainment
Skills
Experience Level
Expert
Expert
Expert
Intermediate
Intermediate
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