Carlos Vidal

I'm an experienced AI Data Annotator for 3 years now. I was born in Newark, New Jersey and raised by brazilian parents, having a natural, native bilingual upbringing. Strong reasoning skills, logical thinking and experience with evaluating, rating and ranking AI prompts and responses.

Experience working with Appen, Outlier and Data Annotation.

Prompt Engineer & Translator at Appen (2021-01 – Present)

• AI prompt engineering and evaluation.
• Translation, localization, and linguistic analysis projects.
• Data quality assurance and annotation tasks.

Prompt Engineer & Translator at Data Annotation (2024-01 – Present)

• Prompt creation and refinement for large language models.
• Evaluation of AI-generated content for quality and accuracy.
• Translation and language quality assessment projects.

Prompt Engineer & Translator at Outlier (2025-01 – Present)

• AI training and response evaluation.
• Prompt development and testing across multiple domains.
• Multilingual annotation and translation work.

English Teacher at Aliança Idiomas

• English instruction for students of various proficiency levels.

English Teacher at REO English

• Classroom and one-on-one English teaching.

English Teacher at New Horizons

• English language training and student assessment.

High School Diploma

Information Technology Program – CEDAF