Hello, I'm

Rogério do Carmo

Frontend Mobile React Native Developer

Bachelor in Computer Science

UNESP - 2018

Master in Cartographic Sciences

UNESP - 2023

Complete master's dissertation:

Evaluation of GNSS measurement quality and positioning in Android smartphones

Download Dissertation (PDF)

Senior Mobile Developer 2023 - 2026 (3 years)

View My Work Get in Touch

contact@rogeriodocarmo.com

Explore My Journey

Professional Experience

Senior Mobile Front-End Developer

Topaz · Remote, Brazil

Mar 2023 – Mar 2026 · 3 yrs

Working on the company's internal product for the banking sector. Development and maintenance of mobile applications for financial institutions, focusing on critical features and user experience.

Achievements

•Developed and implemented complete Pix module for banking applications, including integration with DICT (Directory of Transactional Account Identifiers)

•Implemented Biometric Login with Daon integration for secure authentication

•Created Loan module with complete request and approval flow

•Provided maintenance and bug fixes for critical banking applications

•Worked on projects for specific clients: CrediSIS (Brazil), Bradescard (Mexico), Banco Macro (Argentina), and Banco do Nordeste - BNB (Brazil)

•Worked with Google Play Console, Apple Developer, and TestFlight for app distribution

•Implemented unit tests with Jest to ensure code quality

•Used monitoring tools (Elastic, Kibana, Grafana) for performance analysis

•Experience with agile methodologies and effective communication with stakeholders (POs, BAs, QAs, SMs)

•Mentored junior developers in React Native development best practices

Mobile Developer React Native

Rubcube · Remote, Brazil

Feb 2022 – Apr 2023 · 1 yr 2 mos

Worked on developing the mobile application for client Banco Digi+, focusing on banking features and user experience.

Achievements

•Created complete Pix module from scratch for Banco Digi+, including all transfer and payment functionalities

•Performed maintenance and bug fixes on the banking application

•Worked with MongoDB for data persistence

•Developed React Native components in both functional and class formats

•Developed company website using React JS

•Experience with REST API integration for banking services

Android/Flutter Developer

Engeselt · Remote, Brazil

May 2021 – Nov 2021 · 6 mos

Joined the company to develop a proof of concept for master's degree research on GNSS (GPS) data. After completion, remained at the company to work on proprietary products for the electrical sector.

Achievements

•Developed proof of concept using GNSS (GPS) data from master's research

•Performed maintenance and bug fixes on the company's electrical sector application

•Worked with Flutter MobX for state management

•Implemented offline-first features with SQFlite and OpenStreetMaps

•Developed in Native Android using Java and XML

•Applied academic GNSS knowledge to practical applications

Flutter Developer

Rubcube · Remote, Brazil

Nov 2021 – Feb 2022 · 3 mos

Worked on the mobile application for client Virtus Pay, focusing on maintenance and code quality.

Achievements

•Performed maintenance and bug fixes on the Virtus Pay application

•Worked with Flutter for cross-platform development

•Experience with digital payment applications

Timeline

WorkMar 2023 – Mar 2026 · 3 yrs
Senior Mobile Front-End Developer
Topaz · Remote, Brazil
Working on the company's internal product for the banking sector. Development and maintenance of mobile applications for financial institutions, focusing on critical features and user experience.
WorkFeb 2022 – Apr 2023 · 1 yr 2 mos
Mobile Developer React Native
Rubcube · Remote, Brazil
Worked on developing the mobile application for client Banco Digi+, focusing on banking features and user experience.
WorkMay 2021 – Nov 2021 · 6 mos
Android/Flutter Developer
Engeselt · Remote, Brazil
Joined the company to develop a proof of concept for master's degree research on GNSS (GPS) data. After completion, remained at the company to work on proprietary products for the electrical sector.
WorkNov 2021 – Feb 2022 · 3 mos
Flutter Developer
Rubcube · Remote, Brazil
Worked on the mobile application for client Virtus Pay, focusing on maintenance and code quality.

Projects

INCT GNSS App

FeaturedMock Data

Aplicação Android para coleta e processamento de dados GNSS brutos em tempo real, com geração de arquivos RINEX e Posicionamento por Ponto Simples (PPS)

JavaAndroid SDKGNSS/GPSRINEX 3.04+4 more

Android Native Crud

Aplicação de exemplo para estudo inicial do ambiente Android, explorando componentes fundamentais e padrões de desenvolvimento

JavaAndroid SDKMaterial DesignSQLite+1 more

Personal Resume Website

Featured

Site de currículo pessoal moderno e responsivo com suporte multilíngue, modo escuro, e integração completa com Firebase Analytics

Next.js 16TypeScriptTailwind CSSFirebase Analytics+5 more

Skills

Mobile Development

State Management & Architecture

UI & Styling

Forms & Validation

Testing

Firebase & Cloud Services

APIs & Integration

Internationalization

Native Modules & Integrations

Database & Storage

Maps & Location

DevOps & CI/CD

Monitoring & Analytics

Project Management

Backend & Desktop

Domain Knowledge

Languages

Soft Skills

Get in Touch

Have a project in mind or want to chat? Send me a message!

Professional Email

contact@rogeriodocarmo.com

Or use the form below to send me a message