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Vinícius Sampaio

@vinciussampaio

I evaluate language, follow rigorous procedures, and deliver precise bilingual English-Portuguese instruction for AI data work.

Brazil

Message

What I'm looking for

I'm seeking remote AI and global roles where I can apply Brazilian Portuguese and C1 English, rigorous procedural compliance, data evaluation, and quality assurance to annotation, RLHF evaluation, localization, and prompt refinement.

At InFlux, I deliver English instruction from A1 to C1 in person and online, using Google Meet and Google Slides to assess grammar, syntax, and natural communication in real time.

Previously, I spent approximately four years at Prati-Donaduzzi performing quality-control routines and regulated laboratory operations with 100% SOP adherence. I bring native Brazilian Portuguese, C1 English, precise data recording, factual verification, and structured evaluation to AI data annotation, RLHF evaluation, model localization, and prompt quality assurance.

Experience

Work history, roles, and key accomplishments

Current

English Language Instructor

Current

InFlux

Mar 2026 - Present (6 months)

Conducted structured English language training for learners from beginner to advanced levels in both in-person and online modalities. Utilized digital tools to deliver customized learning modules and provided detailed instructional feedback.

Google Meet Google Slides English Teaching Curriculum Development Student Assessment

Laboratory & Industrial Operations Specialist

Prati-Donaduzzi

Jan 2022 - Jan 2026 (4 years)

Executed quality control routines and technical operations within a regulated industrial laboratory setting, maintaining adherence to Standard Operating Procedures. Demonstrated attention to detail in data recording and verification of operational metrics.

Quality Control SOP Compliance Data Recording laboratory operations Cross Functional Collaboration