09/08/2026 updated
EZ
100 % available
AI Training Specialist & LLM Output Reviewer
São José dos Campos, Brazil
Only remote
Bachelor of Aerospace Engineering, Instituto Tecnológico de Aeronáutica (ITA), 2025Artificial IntelligenceTypeScriptGenerative AIMarketplaceArtificial Intelligence Markup Language (AIML)
LLM Output Review & Evaluation
Daily review and evaluation of LLM responses in both Portuguese (PT-BR) and English, identifying errors such as wrong items, wrong tone, and hallucinated content, followed by prompt and flow corrections.
Data Annotation & Labeling
Annotation and labeling of data for AI training purposes, including written evaluation and judgment of real customer conversations against live orders.
Payment Operations & Policy Review
Review of card transactions against written internal policy, documentation of edge cases, and escalation of inconsistencies to owning teams in an English-language fintech environment.
Online Research & Source Checking
Conducting online research and verifying sources to ensure accuracy and reliability of information.
TypeScript & React
Development experience with TypeScript and React, applied in building AI-driven products.
Spreadsheets
Proficient use of spreadsheets for data management, documentation, and operational tracking.
Aerospace Engineering & Simulation
Academic background in aerospace engineering with a final paper focused on educational orbit simulation using generative AI agents and VR visualization.
Marketplace & Startup Operations
Co-founding and operating a marketplace platform for university events, managing over 500 users and processing more than R$10,000 in transactions.
Daily review and evaluation of LLM responses in both Portuguese (PT-BR) and English, identifying errors such as wrong items, wrong tone, and hallucinated content, followed by prompt and flow corrections.
Data Annotation & Labeling
Annotation and labeling of data for AI training purposes, including written evaluation and judgment of real customer conversations against live orders.
Payment Operations & Policy Review
Review of card transactions against written internal policy, documentation of edge cases, and escalation of inconsistencies to owning teams in an English-language fintech environment.
Online Research & Source Checking
Conducting online research and verifying sources to ensure accuracy and reliability of information.
TypeScript & React
Development experience with TypeScript and React, applied in building AI-driven products.
Spreadsheets
Proficient use of spreadsheets for data management, documentation, and operational tracking.
Aerospace Engineering & Simulation
Academic background in aerospace engineering with a final paper focused on educational orbit simulation using generative AI agents and VR visualization.
Marketplace & Startup Operations
Co-founding and operating a marketplace platform for university events, managing over 500 users and processing more than R$10,000 in transactions.
Languages
EnglishNative speakerPortugueseNative speaker
Project history
Built and ran a WhatsApp-based AI ordering product for restaurants. Reviewed LLM responses in Portuguese daily, identifying wrong items, wrong tone, and hallucinated prices, then fixed prompts and flows. Read and judged hundreds of real customer conversations against live orders.
Reviewed card transactions against written internal policy. Documented edge cases and escalated inconsistencies to owning teams. Worked in English daily with a US team.
Marketplace for university events with 500+ users and R$10,000+ processed. Shut down in 2023 when the business model did not hold.