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Keven Melo

AI Training Specialist & Data Annotator (Revelo)

Brazil flagMaceió, Brazil
$20.00/hrIntermediateInternal Proprietary Tooling

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

AI Model Output Evaluation and Alignment
Legal Services & Contract Review
Regulatory Compliance & Risk Analysis

Top Data Types

TextText
DocumentDocument

Top Task Types

RLHF

Freelancer Overview

AI Training Specialist & Data Annotator (Revelo). Brings 6+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Internal and Proprietary Tooling. Education includes Bachelor of Technology, Unopar (2023) and Certificate in User Experience Design, UX Unicórnio (2021). AI-training focus includes data types such as Text and labeling workflows including RLHF.

IntermediateEnglishPortuguese

Labeling Experience

AI Training Specialist & Data Annotator (Revelo)

TextRLHF
As an AI Training Specialist & Data Annotator, I focused on data annotation and qualitative analysis of AI model outputs. My responsibilities included structured model evaluation, human-in-the-loop feedback, and documenting model failures for RLHF pipelines. I worked on producing high-quality labeled datasets and evaluating technical outputs in AI alignment contexts. • Evaluated AI-generated responses for coherence, instruction adherence, and logical consistency. • Performed systematic annotation for supervised learning training data. • Identified and categorized model failures using RLHF taxonomies. • Participated in structured preference modeling and quality assurance processes.

As an AI Training Specialist & Data Annotator, I focused on data annotation and qualitative analysis of AI model outputs. My responsibilities included structured model evaluation, human-in-the-loop feedback, and documenting model failures for RLHF pipelines. I worked on producing high-quality labeled datasets and evaluating technical outputs in AI alignment contexts. • Evaluated AI-generated responses for coherence, instruction adherence, and logical consistency. • Performed systematic annotation for supervised learning training data. • Identified and categorized model failures using RLHF taxonomies. • Participated in structured preference modeling and quality assurance processes.

2024 - Present

Education

U

Unopar

Bachelor of Technology, Systems Analysis and Development

Bachelor of Technology
2021 - 2023
U

UX Unicórnio

Certificate in User Experience Design, User Experience Design

Certificate in User Experience Design
2020 - 2021

Work History

C

Centro De Inovação Edge

Full-Stack Developer

Maceió
2025 - Present
C

Carajás Home Center

Mid-Level Developer (Flutter)

Maceió
2023 - 2025