Open to opportunities

Gabriel Lemes

@gabriellemes

Message

I build and ship reliable Flutter mobile apps from architecture to App Store and Google Play release.

Brazil

Message

What I'm looking for

I'm looking to build reliable, scalable mobile products with cross-functional Agile teams, contributing across architecture, API integration, testing, CI/CD, and production delivery.

I've maintained and shipped features for Travelex Confidence Group's foreign exchange app, serving 500,000+ downloads. I led a refactor of 3,000+ files to Clean Architecture, improving long-term scalability and maintainability.

At Deal Technologies, I delivered features and fixed critical production bugs for a high-traffic mobile app. I also implemented Google Analytics journey tracking and expanded unit-test coverage across 30,000+ lines of code.

As the sole Flutter and Node.js developer at Uniodonto Goiânia, I grew its mobile app to 13,000+ active devices and 15,000+ registered users. I also shipped five additional applications, including an e-commerce site that generated R$60,000+ in revenue.

I work across Flutter, REST APIs, state management, testing, CI/CD, and app-store delivery, collaborating closely with backend, QA, and design teams to resolve production issues and deliver dependable products.

Experience

Work history, roles, and key accomplishments

Mid-Level Flutter Developer

Travelex Confidence Group

Nov 2025 - Jul 2026 (8 months)

Maintained and shipped new features for a foreign exchange mobile app with 500,000+ downloads, using Flutter, BLoC, and Clean Architecture. Led an architecture refactor migrating 3,000+ files to Clean Architecture and applying SOLID principles, improving scalability and long-term maintainability.

Flutter Dart BLoC Clean Architecture SOLID Principles REST APIs Unit Testing Mocktail CI CD Firebase App Distribution Agile

Mid-Level Flutter Developer

Deal Technologies

Jan 2025 - Nov 2025 (10 months)

Developed features and fixed critical production bugs for a high-traffic mobile app within a cross-functional squad of Flutter, QA, and Java engineers. Implemented user journey tracking with Google Analytics, surfacing product insights for cross-functional stakeholders.

Flutter Dart Google Analytics Unit Testing Agile Sprint Planning Effort Estimation

Full-Stack Mobile Developer

Uniodonto Goiânia

Sep 2023 - Dec 2024 (1 year 3 months)

Sole Flutter/Node.js developer for the Uniodonto Goiânia mobile app, growing it to 13,000+ active devices and 15,000+ registered users. Designed and shipped 5 additional Flutter/Node.js applications, including an event check-in system, a procurement platform, and an e-commerce site that generated R$60,000+ in revenue.

Flutter Dart Node.Js Development Firebase Project Management

Flutter Full-Stack Developer

Águia Robô

Jul 2023 - Sep 2023 (2 months)

Built government fiscal-notification and lead-capture Flutter applications alongside a senior developer, integrating measurement and data-tracking features.

Flutter Dart REST APIs Data Tracking