Lucas D.

Key Skills

Software

Other

Data Annotation Tech

Top Subject Matter

Legal Domain AI Evaluation

RLHF & LLM Quality Assessment

Multilingual Content Evaluation (PT-BR / English)

Top Data Types

Text

Document

Top Task Types

RLHF

Prompt + Response Writing (SFT)

Text Generation

Question Answering

Evaluation/Rating

Transcription

Text Summarization

Classification

Freelancer Overview

Licensed Attorney (OAB/SP) and bilingual AI training specialist with hands-on RLHF experience across legal, creative, and conversational domains. Native Portuguese (PT-BR) speaker with C1 English. Skilled in prompt design, golden answer creation, rubric development, and structured legal reasoning evaluation for LLM training projects. Currently pursuing a B.S. in Information Technology Management, bridging legal expertise with technical foundations.

Labeling Experience

AI Content Evaluator & RLHF Specialist (Freelance), DataAnnotation

OtherTextRLHF

Provided RLHF-oriented preference ranking and comparative evaluations of model responses using structured rubrics. Evaluated AI-generated outputs for factual accuracy, reasoning quality, instruction-following, and cultural fit in Portuguese (PT-BR) and English. Designed and supported evaluation processes for LLM training datasets requiring legal reasoning and case-based analysis.• Assessed hallucinations, reasoning errors, and cultural inaccuracies in multilingual AI outputs.• Performed preference ranking across multiple concurrent projects while maintaining benchmark calibration.• Built prompt and golden reference answer sets for legal/statutory/case-based tasks.• Participated in structured QA review cycles to ensure consistency across Portuguese-language evaluation benchmarks.

2026 - Present

Education

Work History