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I am a Senior iOS/Flutter Engineer with over 17 years of experience specializing in mobile development. Over the last 8 years, I have focused on iOS development using Swift, and for the past 4 years, I have been immersed in Flutter, mastering Dart to create high-performance cross-platform apps. I excel in building robust, efficient, and scalable native applications, with a deep understanding of optimizing code for maximum performance. My experience spans backend development, agile methodologies, and delivering projects on time and within scope. I have a proven track record of collaborating with cross-functional teams, including clients, designers, and QA, to refine UX design and implement JSON structures effectively.…I am a Senior iOS/Flutter Engineer with over 17 years of experience specializing in mobile development. Over the last 8 years, I have focused on iOS development using Swift, and for the past 4 years, I have been immersed in Flutter, mastering Dart to create high-performance cross-platform apps. I excel in building robust, efficient, and scalable native applications, with a deep understanding of optimizing code for maximum performance. My experience spans backend development, agile methodologies, and delivering projects on time and within scope. I have a proven track record of collaborating with cross-functional teams, including clients, designers, and QA, to refine UX design and implement JSON structures effectively.

Marcelo Reis

App Developer, Developer, Project Manager

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I am a Senior iOS/Flutter Engineer with over 17 years of experience specializing in mobile development. Over the last 8 years, I have focused on iOS development using Swift, and for the past 4 years, I have been immersed in Flutter, mastering Dart to create high-performance cross-platform apps. I excel in building robust, efficient, and scalable native applications, with a deep understanding of optimizing code for maximum performance. My experience spans backend development, agile methodologies, and delivering projects on time and within scope. I have a proven track record of collaborating with cross-functional teams, including clients, designers, and QA, to refine UX design and implement JSON structures effectively.…I am a Senior iOS/Flutter Engineer with over 17 years of experience specializing in mobile development. Over the last 8 years, I have focused on iOS development using Swift, and for the past 4 years, I have been immersed in Flutter, mastering Dart to create high-performance cross-platform apps. I excel in building robust, efficient, and scalable native applications, with a deep understanding of optimizing code for maximum performance. My experience spans backend development, agile methodologies, and delivering projects on time and within scope. I have a proven track record of collaborating with cross-functional teams, including clients, designers, and QA, to refine UX design and implement JSON structures effectively.

Available to hire

I am a Senior iOS/Flutter Engineer with over 17 years of experience specializing in mobile development. Over the last 8 years, I have focused on iOS development using Swift, and for the past 4 years, I have been immersed in Flutter, mastering Dart to create high-performance cross-platform apps. I excel in building robust, efficient, and scalable native applications, with a deep understanding of optimizing code for maximum performance.

My experience spans backend development, agile methodologies, and delivering projects on time and within scope. I have a proven track record of collaborating with cross-functional teams, including clients, designers, and QA, to refine UX design and implement JSON structures effectively.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Portuguese

Fluent

Work Experience

Mobile Engineer at 2GO Bank

December 2, 2023 - Present

Lead a team of five developers overseeing the complete development of frontend applications for Android and iOS platforms. Utilized Agile methodologies and JIRA for project management. Architected and built a white-label banking app from scratch using Dart/Flutter. Designed and implemented a modular architecture enabling flexible module integration tailored to client needs. Hands-on coding leveraging extensive expertise as a senior iOS engineer to deliver high-quality, performant code. Achievements include reducing client onboarding time through a plug-and-play modular architecture, building a scalable app with stable size regardless of client volume, increasing test coverage from 0% to 90%, expanding the team from 2 to 5 members, and a 5% increase in company revenue after launching 2GO-Tickets.

IT Manager / iOS Engineer at Trux Drive

December 1, 2023 - August 7, 2025

Worked in a hybrid role combining technical leadership and hands-on iOS development at a truck-hailing platform. Led mobile initiatives, improved app architecture, and coordinated efforts between frontend, backend, and QA teams. Redesigned the app using SwiftUI, increasing App Store rating from 3.2 to 4.8. Introduced a reusable component library and MVVM architecture which reduced feature development time, increased test coverage, and improved app reliability. Managed CI/CD pipelines and monitored KPIs related to app quality, performance, and user satisfaction.

Senior iOS Engineer at Hertz Inc

August 1, 2022 - August 7, 2025

Played a key role in the full reconstruction of the Hertz app, one of Versett's largest international clients. Led implementation of a modern design system using SwiftUI and restructured user flows to improve scalability, maintainability, and reliability. Contributed to raising engineering quality through mentorship and helped define software standards within the mobile team. Delivered a scalable, reliable, and modernized mobile app for a global brand, improved team efficiency by reducing rework, and elevated overall software quality and engineering practices.

Software Engineering Manager at Foursys

December 1, 2021 - August 7, 2025

Oversaw strategic projects and recruitment for software engineers, playing a key role in driving the organization’s technology initiatives and ensuring successful delivery of client projects. Led and managed new and strategic software projects aligning with organizational goals and timely delivery. Recruited and selected top-tier software engineers and developers, building strong teams to meet project demands. Developed and implemented strategies to enhance project outcomes and client alignment contributing to business success.

Senior iOS Engineer at Cabify

January 1, 2019 - August 7, 2025

Focused on enhancing passenger-oriented applications by implementing new features and refactoring legacy code to improve system performance and maintainability. Managed the release process including setting up and maintaining automated continuous integration for test and final submissions to the Apple Store. Applied agile methodologies including Scrum and Kanban to drive project progress and facilitate effective team collaboration.

Senior iOS Engineer at Bradesco

January 1, 2018 - August 7, 2025

Specialized in iOS application development focusing on enhancing user experience and optimizing application performance. Developed and maintained iOS applications using Swift 2.2, Objective-C, and Xcode ensuring high performance and reliability. Created new features and implemented innovative design patterns to enhance user experience and application usability. Conducted maintenance and adjustments to existing applications to ensure optimal performance and functionality.

Senior Systems Analyst and Software Developer at Wine.com.br

December 1, 2014 - August 7, 2025

Worked on internal systems focusing on integrating diverse systems and developing dashboards to support data-driven decision-making. Alternated between leading projects and contributing as a team member. Ensured stability and functionality of core internal systems, managed and optimized integrations between various databases and systems, and developed dashboards to streamline data access and aid critical decision-making.

Mobile Engineer at 2GO Bank

December 2, 2023 - Present

Lead a team of five developers, overseeing the complete development of frontend applications for Android and iOS platforms. Architected and built a white-label banking app from scratch using Dart and Flutter. Designed and implemented a modular architecture enabling flexible module integration tailored to client needs. Actively involved in hands-on coding creating high-quality, performant code. Key achievements include reducing client onboarding time through plug-and-play modular architecture, building a scalable app with stable size regardless of client volume, increasing test coverage from 0% to 90%, growing the team from 2 to 5 developers, and contributing to a 5% revenue increase post-launch.

IT Manager / iOS Engineer at Trux Drive

December 1, 2023 - August 7, 2025

Led mobile initiatives and combined technical leadership with hands-on iOS development at a truck-hailing platform. Improved app architecture and coordinated efforts between frontend, backend, and QA teams. Redesigned the app using Swift UI, improving App Store rating from 3.2 to 4.8. Introduced reusable component library and MVVM architecture to reduce feature development time, increase test coverage, and improve app reliability. Managed CI/CD pipeline using Composer and Fastlane, and monitored KPIs related to app quality and user satisfaction.

Senior iOS Engineer at Hertz Inc

August 1, 2022 - August 7, 2025

Played a key role in full reconstruction of the Hertz app, one of Versett's largest international clients. Led the implementation of a modern design system using Swift UI, restructured user flows for scalability, maintainability, and reliability. Mentored mobile developers and helped define engineering quality standards. Collaborated with multiple teams to ensure scalability and performance. Delivered a scalable, reliable, and modernized mobile app for a global brand, improved team efficiency, and elevated overall software engineering practices.

Software Engineering Manager at Foursys

December 1, 2021 - August 7, 2025

Oversaw strategic projects and recruitment for software engineers. Led and managed all new and strategic software projects ensuring alignment with organizational goals and timely delivery. Recruited and selected top-tier software engineers and developers for various client projects, building strong teams to meet project demands. Developed and implemented strategies to enhance project outcomes in line with client needs, contributing to overall business success.

Senior iOS Engineer at Cabify

January 1, 2019 - August 7, 2025

Focused on enhancing passenger-oriented applications by implementing new features and refactoring legacy code to improve system performance and maintainability. Managed the entire release process including setting up and maintaining automated Continuous Integration for test versions and final submissions to the Apple Store. Applied Agile methodologies (Scrum and Kanban) to drive project progress and facilitate effective team collaboration.

Senior iOS Engineer at Bradesco

January 1, 2018 - August 7, 2025

Specialized in iOS application development focusing on enhancing user experience and optimizing application performance. Developed and maintained iOS applications using Swift 2.2, Objective-C, and Xcode. Created new features and implemented innovative design patterns. Conducted maintenance and adjustments to ensure optimal performance and functionality.

Senior Systems Analyst and Software Developer at Wine.com.br

December 1, 2014 - August 7, 2025

Worked on internal systems focusing on integrating diverse systems and developing dashboards to support data-driven decision making. Led projects when needed and contributed as a team member. Ensured stability and functionality of core internal systems. Managed and optimized integrations between various databases and systems.