Open to opportunities

Roger Melo

@rogermelo

I build scalable, accessible React and TypeScript applications with reliable APIs, testing, and high-performance user interfaces.

Brazil

Message

What I'm looking for

I'm looking for remote international opportunities as a Senior Front-End Engineer, frontend-focused full-stack engineer, Frontend Developer, or React Engineer, contributing to scalable products and high-quality user interfaces.

At EMS, I build front-end applications for pharmaceutical manufacturing operations, including visual production boards, production orders, equipment status, and real-time operational visibility. I improve authentication reliability, synchronize live board data with SignalR and React Query, and validate API contracts with Zod.

Previously at Banco BRB, I helped architect a payroll loan platform with React, Next.js, TypeScript, and Material UI, delivering reusable SSR-oriented interfaces, REST API integrations, and automated tests. At Roger Melo Treinamentos de TI, I replaced a third-party landing-page builder with in-house React and Next.js solutions, generating R$ 4,000 in annual savings while also building Node.js APIs.

I care about maintainable, accessible, performant software and enjoy working with Product, Design, QA, Backend, and business teams to turn requirements into reliable user experiences.

Experience

Work history, roles, and key accomplishments

Current

Senior Front End Engineer

Current

EMS

Nov 2025 - Present (9 months)

Contributed to a pharmaceutical manufacturing operations web project, building and maintaining features in a React JS, TypeScript, Vite, and Material UI SPA/MFE. Implemented session-expiration handling, real-time board synchronization, and Zod-based runtime validation architecture.