Luis Felipe Mattos

Software Engineer at TOTVS | React | TypeScript | React Native | Frontend

Brazil

About

Senior Software Engineer with 8+ years of experience building fast, reliable, and scalable web and mobile applications using React, React Native, TypeScript, and JavaScript. Led technical discovery and platform evaluation to address multi-product analytics fragmentation, implementing a scalable analytics layer that reduced product inconsistency and improved customer adoption and retention, contributing to a $2M+ increase in NARR.

Experience

  • TOTVS ()
    • Senior Software Engineer
      Jul 2024 - Present · 2 yrs 1 mo

      Led technical discovery and platform evaluation to address multi-product analytics fragmentation. Implemented a scalable analytics layer that reduced product inconsistency and improved customer adoption and retention, contributing to a $2M+ increase in NARR. Redesigned and implemented a centralized system navigation architecture, improving user experience consistency and reducing the time to add or update navigation features by 40%, enabling scalable, incremental product evolution across multiple applications. Implemented a highly configurable listing and filtering template generator, driven by a configuration-based architecture, enabling reuse across 45+ microfrontends and reducing the development time for listing and filtering pages by 63%. Stack: Typescript, Javascript, React

    • Software Engineer
      May 2021 - Jul 2024 · 3 yrs 3 mos

      Led the refactoring of an analytics component library by optimizing performance, increasing test coverage and documenting components, updating outdated dependencies, and shipping new library versions, supporting 60,000+ businesses company-wide. Set up frontend error monitoring using Datadog, defining monitors to track frontend error trends, and leveraged Rollbar for error tracking and debugging, reducing TTR by 35% through faster identification and resolution of production issues. Implemented A/B testing and feature experimentation using Statsig, segmenting the customer base to validate multiple product variants, and instrumented frontend user event tracking integrated with Segment, increasing conversion rates for targeted customer segments by more than 15% in some initiatives.

  • Software Engineer at M Code Solutions
    Jun 2024 - Jun 2025 · 1 yr 1 mo

    Built mobile app with React Native for Android and iOS using Expo and EAS to build versions and publish on Google Play and App Store. Create interactive dashboards and insights using D3, supporting real-time data based on daily user inputs. Customized a Material UI-based design system with project-specific sizing, spacing, and token adjustments to align with brand and usability standards. Implemented behavior tests with Jest and React Testing Library, improving confidence in critical features and reducing regression. Stack: Typescript, React Native

  • Software Engineer at SENAI Soluções Digitais
    Sep 2017 - May 2021 · 3 yrs 9 mos

    Built a web and mobile platform that taught Brazilian Sign Language (BSL) by allowing users to select words and view a 3D animated character performing the corresponding signs, resulting in over 50,000 downloads across Google Play and the App Store. Built a web and mobile platform that enabled companies to register employees for influenza vaccination campaigns, supporting over 35,000 scheduled vaccinations. Stack: React, React Native, Typescript