I am an experienced mobile and software developer specializing in Flutter and Android platforms. I have developed a wide range of applications from mobile apps focused on parents to monitor their children's food consumption, to ride-hailing platforms with real-time tracking and integrated payment gateways. My work involves designing clean, maintainable code bases using modern design patterns such as BLoC and MVVM, and collaborating closely with UI/UX and backend teams to deliver high-quality solutions that meet user and business needs. I enjoy solving complex problems through software and constantly enhancing user engagement by integrating services like Firebase Cloud Messaging and advanced native features such as facial recognition. With a strong foundation in Java, Kotlin, Dart, and TypeScript, I have also contributed to app migrations and end-to-end development for multiple platforms including Android, iOS, and hybrid apps, aiming to improve maintainability and performance while ensuring seamless integration with backend APIs.

Vinicius Rossini

I am an experienced mobile and software developer specializing in Flutter and Android platforms. I have developed a wide range of applications from mobile apps focused on parents to monitor their children's food consumption, to ride-hailing platforms with real-time tracking and integrated payment gateways. My work involves designing clean, maintainable code bases using modern design patterns such as BLoC and MVVM, and collaborating closely with UI/UX and backend teams to deliver high-quality solutions that meet user and business needs. I enjoy solving complex problems through software and constantly enhancing user engagement by integrating services like Firebase Cloud Messaging and advanced native features such as facial recognition. With a strong foundation in Java, Kotlin, Dart, and TypeScript, I have also contributed to app migrations and end-to-end development for multiple platforms including Android, iOS, and hybrid apps, aiming to improve maintainability and performance while ensuring seamless integration with backend APIs.

Available to hire

I am an experienced mobile and software developer specializing in Flutter and Android platforms. I have developed a wide range of applications from mobile apps focused on parents to monitor their children’s food consumption, to ride-hailing platforms with real-time tracking and integrated payment gateways. My work involves designing clean, maintainable code bases using modern design patterns such as BLoC and MVVM, and collaborating closely with UI/UX and backend teams to deliver high-quality solutions that meet user and business needs.

I enjoy solving complex problems through software and constantly enhancing user engagement by integrating services like Firebase Cloud Messaging and advanced native features such as facial recognition. With a strong foundation in Java, Kotlin, Dart, and TypeScript, I have also contributed to app migrations and end-to-end development for multiple platforms including Android, iOS, and hybrid apps, aiming to improve maintainability and performance while ensuring seamless integration with backend APIs.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

Portuguese
Fluent
English
Intermediate
Spanish; Castilian
Advanced

Work Experience

Flutter Engineer at Druid Internet Systems
May 1, 2024 - Present
Developed a mobile application for parents to monitor their children's food consumption at school, including balance top-ups, daily/weekly spending limits, and consumption restrictions. Designed and implemented state management, dependency injection, and routing using GetX. Integrated backend and payment APIs with continuous improvements based on user feedback and business needs. Developed an Android app focused on self-service kiosks integrating native Kotlin services for facial recognition, card payments, and printing.
Flutter Developer at Konnektable Technologies Ltd.
January 31, 2024 - August 28, 2025
Developed a ride-hailing platform with payment API integration and real-time localization through WebSocket, in addition to an e-commerce application featuring product catalog management, checkout flow, and third-party payment gateway integration. Designed and implemented a clean codebase using the Bloc design pattern based on user specifications. Collaborated with UI/UX and backend teams to solve key usability challenges and define API rule sets. Integrated Firebase Cloud Messaging to enhance active user engagement and ensure timely transactional updates.
Android Engineer at MICHELIN Connected Fleet
March 31, 2023 - August 28, 2025
Developed a tablet application for fleet tracking integrating WiFi, GPRS, GPS, and Bluetooth for vehicle sensors. Implemented the MVVM design pattern in Java, utilizing ORMLite for efficient data management. Contributed to migrating the codebase from Java to Kotlin, improving maintainability and aligning with modern development practices. Integrated RESTful APIs to synchronize real-time vehicle data, enhancing accuracy and enabling seamless communication between fleet devices and centralized monitoring systems.
Flutter Developer at Grupo SG COR - Tecnologia em Seguros
January 31, 2021 - August 28, 2025
Developed hybrid Flutter applications integrating with SG COR systems via GraphQL for insurance broker clients. Utilized Bloc design pattern, RxDart, Google Maps API, and push notifications for project development. Integrated advanced state management solutions and implemented automated testing routines to increase reliability and maintainability of mobile insurance platforms.
Ionic Developer at Metaway TI
October 31, 2019 - August 28, 2025
Developed and merged two applications using Ionic Angular, TypeScript, and Cordova to enhance user experience. Published applications on Google Play and the App Store to increase visibility and accessibility. Implemented automated testing and continuous integration workflows to strengthen code reliability and accelerate deployment cycles across multiple client projects.
Android Developer at Office System Informatica Ltda
January 31, 2019 - August 28, 2025
Developed Android applications in Java using MVC architecture, Retrofit2, SQLite, and Gson. Integrated the app with the company's main product via REST, enabling field salespeople to submit orders directly. Increased customer agility and significantly boosted sales through the new solution.

Education

Master of Business Engineering - MBE, Mobile Software Engineering at Centro Universitário Internacional UNINTER
January 11, 2030 - December 1, 2021
Graduate Degree, Technologies for Web Applications at UNOPAR - Universidade Norte do Paraná
January 11, 2030 - December 1, 2019
Undergraduate Degree, Systems Development Technologist at Instituto Federal de Educação, Ciência e Tecnologia Farroupilha
January 11, 2030 - June 1, 2015

Qualifications

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Industry Experience

Software & Internet, Transportation & Logistics, Financial Services, Retail, Healthcare