Raphael S.

Key Skills

Software

No software listed

Top Subject Matter

Legal Services & Contract Review

Regulatory Compliance & Risk Analysis

Legal Research & Document Analysis

Top Data Types

Video

Text

Document

Top Task Types

Segmentation

Freelancer Overview

Mobile Engineer. Brings 9+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Postgraduate Studies in Information Security, Unichristus (2018) and Systems Analyst, Universidade Estácio de Sá (2016). AI-training focus includes data types such as Computer Code and Programming and labeling workflows including Segmentation.

Labeling Experience

Mobile Engineer

Segmentation

Contributed to a FinTech super-app by developing core mobile features with a strong focus on security and compliance. Led a testing culture initiative by introducing Jest and React Native Testing Library, driving a large improvement in code coverage. Integrated the Firebase suite for authentication, real-time updates, and remote configuration to enable feature flagging and user segmentation, and served as a security analyst focal point for encryption and API communication improvements. • Built security- and compliance-oriented FinTech features in a mobile codebase • Increased test coverage by 80% through Jest and React Native Testing Library adoption • Implemented Firebase Auth, Real-Time Database, and Remote Config for dynamic behavior • Proposed and improved data encryption and API communication practices

2020 - 2022

Education

Work History