Looks like you have JavaScript disabled. For the full Twine experience, you will need to re-enable it.

I’m Sandro Menezes, a Senior Flutter/Mobile Engineer in São Paulo with 15+ years of software development experience and deep expertise in building production-grade mobile apps using Flutter and Dart since 2019. I focus on delivering reliable Android and iOS solutions for real-world operations, especially where offline-first workflows, device capabilities, and enterprise integrations make a real difference.…I’m Sandro Menezes, a Senior Flutter/Mobile Engineer in São Paulo with 15+ years of software development experience and deep expertise in building production-grade mobile apps using Flutter and Dart since 2019. I focus on delivering reliable Android and iOS solutions for real-world operations, especially where offline-first workflows, device capabilities, and enterprise integrations make a real difference.

Sandro Menezes

Web Developer, Programmer, App Developer, +1





I’m Sandro Menezes, a Senior Flutter/Mobile Engineer in São Paulo with 15+ years of software development experience and deep expertise in building production-grade mobile apps using Flutter and Dart since 2019. I focus on delivering reliable Android and iOS solutions for real-world operations, especially where offline-first workflows, device capabilities, and enterprise integrations make a real difference.…I’m Sandro Menezes, a Senior Flutter/Mobile Engineer in São Paulo with 15+ years of software development experience and deep expertise in building production-grade mobile apps using Flutter and Dart since 2019. I focus on delivering reliable Android and iOS solutions for real-world operations, especially where offline-first workflows, device capabilities, and enterprise integrations make a real difference.

Available to hire

I’m Sandro Menezes, a Senior Flutter/Mobile Engineer in São Paulo with 15+ years of software development experience and deep expertise in building production-grade mobile apps using Flutter and Dart since 2019. I focus on delivering reliable Android and iOS solutions for real-world operations, especially where offline-first workflows, device capabilities, and enterprise integrations make a real difference.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Work Experience

Flutter Mobile Developer (Senior) at Vale

January 1, 2023 - Present

Developed Iris, a Flutter/Dart mobile app for recording field events, inspections, and risk conditions integrated with SAP EHS. Implemented offline operation using a SQLite-persisted catalog, login synchronization, and a retry queue to safely capture records created without network coverage. Delivered a “Gol de Placa” event-classification flow with a catalog of 783 combinations. Diagnosed SAP EHS integration defects (e.g., person type, personnel number, and automatic closure rules) by analyzing repository history to isolate regressions.

Flutter Mobile Developer at Vale

January 1, 2023 - Present

Develop Iris, a Flutter/Dart offline-capable mobile app for recording field events, inspections, and risk conditions with integration to SAP EHS. Implemented offline operation using SQLite-persisted catalogs, login synchronization, and a retry queue for records created without network coverage. Delivered a “Gol de Placa” event-classification flow using a catalog of 783 combinations. Diagnosed and resolved SAP EHS integration defects related to person type, personnel number, and automatic closure rules by using repository history to isolate regressions.

Flutter Mobile Developer at Kovi

December 1, 2019 - December 1, 2022

Built Flutter/Dart Fields and Driver apps for Android and iOS with dynamic vehicle-checklist flows, conditional validation rules, and draft recovery. Integrated camera/media capture, QR scanning, OCR, and geolocation, and connected GraphQL and REST APIs with local persistence via SQLite and SharedPreferences. Worked with Provider/ChangeNotifier and GetIt for state management and dependency injection, implemented Firebase Crashlytics and Analytics, and supported internationalization and automated tests. Published and distributed apps via Fastlane and CI/CD to the Apple App Store and Google Play.

Flutter Developer at Access.Run

January 1, 2019 - November 1, 2019

Developed Flutter/Dart applications for iOS and Android to control magnetic door locks and gates via Bluetooth Low Energy (BLE).

Java / Angular Developer at TOTVS

January 1, 2017 - December 1, 2018

Delivered software for wholesale and distribution, contributing to development, testing, deployment, maintenance, and product improvements.

Android Engineer at C&S Sistemas

January 1, 2011 - December 1, 2016

Developed full-stack retail software using Delphi, Java, and C#/.NET with PL/SQL across development, testing, deployment, maintenance, and enhancements.

Developer at LG Sistemas

July 1, 2010 - December 1, 2010

Developed HR and people-management systems using PL/SQL, SQL Server, and .NET, supporting development, testing, deployment, and maintenance.

Full-stack Developer at Canion Software

October 1, 2008 - June 1, 2010

Developed and maintained retail software using Delphi and SQL Server, supporting development, testing, deployment, and ongoing enhancements.