AI Trainer. LLM Evaluator. Data Annotator.
Bruno Stivanin
AI Trainer | LLM Evaluator | Data Annotator
Mogi Guaçu, São Paulo, Brazil | +55 (19) 98196-9587 | bruno.stivanin@hotmail.com
LinkedIn: https://www.linkedin.com/in/bruno-stivanin
OpenTrain AI Profile: https://www.opentrain.ai/profile/bruno-s
Professional Summary
I’m an AI Trainer specializing in Brazilian Portuguese, with experience in training and evaluating AI models to improve text quality. I also have a solid foundation in education, having worked as an English Teacher and Online Tutor.
Core Competencies
• AI & LLM Evaluation (English & Brazilian Portuguese).
• Data Annotation & Collection (Text, Image, Audio).
• Reinforcement Learning from Human Feedback (RLHF).
• Fact-Checking & Proofreading.
Language Proficiency
• Portuguese – Native.
• English – Fluent.
• Spanish – Fluent.
• French – Elementary.
Work Experience
AI Trainer for Portuguese.
Alignerr. Freelance.
Jan 2025 – Present.
Mogi Guaçu, São Paulo, Brazil. Remote.
Provide remote AI training for Portuguese language models, specializing in Artificial Intelligence (AI) evaluation to enhance model performance.
AI Evaluator.
Translated. Freelance.
Nov 2024 – Present.
Mogi Guaçu, São Paulo, Brazil. Remote.
Conduct remote AI evaluation tasks, focusing on assessing and improving AI models.
Remote Brazilian Portuguese Writer for AI Training.
Outlier. Freelance.
Jun 2024 – Present.
Mogi Guaçu, São Paulo, Brazil. Remote.
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.
LatinHire. Freelance.
Jul 2022 – Mar 2025.
Mogi Guaçu, São Paulo, Brazil. Remote.
Answered and proofread questions from various subjects.
Private English Teacher. Self-employed.
May 2017 – Mar 2025.
Mogi Guaçu, São Paulo, Brazil.
Provided private English lessons to students. Gained extensive experience in teaching English as a Second Language.
Administrative Intern.
SANASA Campinas. Sanitation Company.
May 2012 – Dec 2012.
Campinas, São Paulo, Brazil.
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.
Education
Technical Course in Human Resources.
Senac Mogi Guaçu – SP – Brazil.
2017 – 2018.
MBA in Marketing Management.
ESAMC Campinas – Brazil.
2014 – 2015.
Bachelor’s in Business Administration (Emphasis on Foreign Trade).
PUC-Campinas – Brazil.
2008 – 2012.
I’m available up to 40 hours per week, part-time or full-time.