L

Lucas Matheus da Rocha Guimarães

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Rio de Janeiro, Brazil

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Résumé

Jobs verified_user 0% verified
  • WWT
    Mobile Developer
    WWT
    May 2025 - Current (1 year 4 months)
    Collaborate directly with a U.S. food industry client to maintain production continuity and uphold high-quality standards using Agile practices across 6 cross-functional teams. Transition and develop a sophisticated loyalty and rewards ecosystem for a high-traffic restaurant application utilizing Flutter, Kotlin, and Swift. Uphold system performance while delivering a group ordering feature that leverages real-time synchronization across multiple devices. Troubleshoot and resolve complex UI/UX issues by writing comprehensive unit and widget tests to ensure code reliability.
  • CLARO
    Mobile Developer
    CLARO
    Jul 2023 - May 2025 (1 year 11 months)
    Led full platform migrations and architecture for high-performance applications using Flutter, Dart, Swift and Kotlin, ensuring scalable mobile solutions for millions of users. Delivered a streaming mobile application using HLS protocol, optimizing for low-latency playback. Built a scalable content reader app for newspapers, magazines and news. Bridged native SDKs and cross-platform architecture through Platform Channels and reusable native plugins implemented in Kotlin, Swift, and JavaScript. Monitored and optimized application performance and reliability using Android Studio, Xcode, Firebase, and Flutter DevTools to identify and resolve memory leaks and CPU bottlenecks. Configured robust CI/CD pipelines using GitHub Actions, Jenkins, and
  • B
    Mobile Developer
    Bottle Rocket (via Criasol)
    Nov 2022 - Jun 2023 (8 months)
    Collaborated with a U.S. client to transition legacy features into a unified Flutter codebase for a health insurance management platform. Developed mission-critical features using Flutter, Kotlin, Swift, and JavaScript facilitating complex user data updates and document uploads. Maintained strict code quality via pair programming and rigorous testing, ensuring stability during feature rollouts.
  • S
    Mobile Developer
    Smart Mentor
    Oct 2021 - Jan 2022 (4 months)
    Provided Flutter architectural consulting, transitioning business requirements into high-performance technical designs for fitness applications. Upheld best practices by mentoring junior developers on Flutter design patterns and platform interoperability.
  • Accenture
    Software Developer
    Accenture
    Jan 2021 - Nov 2022 (1 year 11 months)
    Managed enterprise system migrations using Oracle Integration Cloud, Oracle Visual Builder and Oracle ERP solutions, focusing on technical transition and system stability. Developed high-performance JavaScript web components for seamless integration into enterprise ERP systems.
  • Confitec
    Software Developer
    Confitec
    Nov 2020 - Dec 2020 (2 months)
    Maintained full-stack insurance applications using .NET Core and SQL Server, ensuring backend stability for PWA deployments.
  • I
    Software Developer
    Intcom
    May 2018 - Oct 2020 (2 years 6 months)
    Developed and maintained scalable PWA applications utilizing .NET Core and Azure, in team management, financial control, and SSO systems in the offshore sector.
Education verified_user 0% verified
  • O
    Oracle Application Integration Cloud Platform Solution Engineer Specialist
    Oracle Credential
    Mar 2021
  • UNISUAM
    Bachelor of Computer Science
    UNISUAM
    Jan 2017 - Dec 2020 (4 years)
  • C
    Computer Technician
    Colégio Realengo
    Feb 2015 - Dec 2016 (1 year 11 months)
Projects (professional or personal) verified_user 0% verified
  • K
    Kazi
    Feb 2022 - Current (4 years 7 months)
    Designed and developed a Flutter app to help freelancers track earnings, organize gigs and manage payments. Features included financial summaries, customizable job categories and data persistence using Firebase. App published on Google Play Store and maintained as an open-source project on GitHub.
  • K
    Korbi
    May 2019 - Jun 2021 (2 years 2 months)
    Designed and developed a Flutter app, with .NET Core and SQL to help consumers and small business owners manage their grocery shopping more efficiently. The platform enables users to compare product prices across supermarkets, build personalized shopping lists, and locate nearby stores. The project evolved into a startup, which was selected for the Ideiaz program by InovAtiva Brasil, in partnership with Hotmilk PUCPR.