CHIARADIA

PROJECTS

Products shaped by real users, systems and constraints.

Selected product and engineering work across banking, consumer mobile, healthcare, enterprise modernization and an early-stage cross-platform venture.

Fabricio Chiaradia

Product engineering becomes meaningful when technical decisions respond to real users, operational limits and long-term evolution.

These projects represent different stages of that work: modernizing production systems, integrating connected devices, evolving consumer software and establishing new products from the ground up.

Selected projects.

A closer look at product constraints, engineering contribution and evidence.

Banco Sofisa

PRODUCTION BANKING • REGULATED ENVIRONMENT

Evolving critical customer journeys in a production mobile bank.

Contributed to the evolution of Banco Sofisa's production mobile application across authentication, biometrics, Pix, Pix Automático, payments, transfers, cards, onboarding, investments and account opening.

Product challenge

Deliver customer-facing improvements across critical financial journeys while respecting the reliability, quality and release controls expected in a regulated product environment.

Selected contribution
  • Implement mobile features with React Native and Expo across multiple banking journeys.
  • Translate product, business and UX requirements into maintainable implementations.
  • Collaborate with product, design, QA and backend teams on delivery and technical decisions.
  • Contribute to push notification delivery with Firebase Cloud Messaging and remotely managed application behavior with Firebase Remote Config.
  • Contribute to accessibility, performance and incremental production releases.
Evidence
  • Production banking application
  • Critical customer journeys
  • Accessibility and performance improvements
  • Incremental staged deliveries
Technologies
  • React Native
  • Expo
  • TypeScript
  • Styled Components
  • React Query
  • REST APIs
  • Firebase Cloud Messaging
  • Firebase Remote Config
  • Jest
  • CI/CD

Chiaradia Sistemas

INDEPENDENT CONSUMER PRODUCT

Growing and sustaining a consumer mobile product at scale.

Built and continues to evolve an independent Android application from concept to production, managing publication, monetization, stability and continuous product improvement.

Product challenge

Turn a focused consumer utility into a durable product while balancing usability, Google Play delivery, monetization, stability and ongoing maintenance without a dedicated product team.

Selected contribution
  • Build and evolve the React Native application across product, engineering and release concerns.
  • Manage Google Play publication, releases and store operations.
  • Integrate monetization, analytics, crash reporting and remote configuration capabilities.
  • Use production behavior and user feedback to guide incremental improvements.
Evidence
  • 829K+ installs
  • 24K active devices
  • 6K+ monthly active users
  • 463 daily active users
  • Crash rate below 0.1%
Technologies
  • React Native
  • Expo
  • TypeScript
  • AdMob
  • Crashlytics
  • Firebase Remote Config
  • MMKV
  • Google Login
  • Sounds

Chiaradia Labs

EARLY-STAGE VENTURE • CONFIDENTIAL PRODUCT

Establishing a cross-platform product and its engineering foundation.

Through Chiaradia Labs, co-building a confidential cross-platform product from the ground up while working hands-on across mobile, web, backend APIs, authentication, infrastructure and delivery automation.

Product challenge

Create a production-grade technical foundation for an early-stage product across multiple application surfaces while keeping complexity proportionate to the product's current stage and its identity confidential.

Selected contribution
  • Implement mobile and web product experiences while contributing to backend APIs.
  • Design application, authentication, environment and deployment strategies.
  • Configure the platforms used to host web applications, APIs and managed databases.
  • Establish CI/CD and use AI-assisted development with engineering validation.
Evidence
  • Chiaradia Labs established in May 2026
  • Cross-platform product in active development
  • Mobile, web, API and database platform foundation
  • Product identity intentionally undisclosed
Technologies
  • React Native
  • React
  • Expo
  • TypeScript
  • Fastify
  • PostgreSQL
  • Cloudflare
  • GitHub Actions

Bennu Brasil

DIGITAL EDUCATION • ANDROID & IOS

Building the Brazilian version of a digital encyclopedia from the ground up.

For Bennu Brasil, built the Ábaco Enciclopédia front end from scratch with React Native and Expo, replacing reliance on the previously used Bennu Argentina version.

Product challenge

Build a Brazilian experience for an educational-content platform, with a mobile foundation ready for learning features, ongoing evolution and release to both app stores.

Selected contribution
  • Contribute across all project phases and lead much of the front end as the sole front-end developer.
  • Implement quizzes, an EPUB reader for course materials and an article area.
  • Integrate APIs and manage code with Bitbucket.
  • Support Android and iOS delivery with Expo EAS and TestFlight.
Evidence
  • Ábaco app published on Google Play and the App Store.
  • Brazilian version built from scratch.
  • Engagement from April 2025 to January 2026.
Technologies
  • React Native
  • Expo
  • TypeScript
  • REST APIs
  • Bitbucket
  • Expo EAS

Bennu Brasil

WELLNESS • ANDROID & IOS

Contributing to the evolution of Fluid's mobile experience for yoga and meditation.

Contributed to the update of Fluid, Bennu Brasil's yoga and meditation app, within a project team that included other developers.

Product challenge

Evolve a React Native wellness application through a redesign and new product surfaces while maintaining integration with existing services for Android and iOS.

Selected contribution
  • Contribute to the redesign and new application screens and sections.
  • Implement API integrations and multiple interface flows.
  • Collaborate with other developers during the product update phases.
  • Support mobile delivery for Android and iOS.
Evidence
  • Fluid app available on Google Play and the App Store.
  • Contributed to the update collaboratively within a development team.
  • Project work performed during the Bennu Brasil freelance engagement.
Technologies
  • React Native
  • Expo
  • TypeScript
  • REST APIs
  • Bitbucket
  • Expo EAS

i4H

HEALTHCARE • WEB & CONNECTED DEVICES

Connecting healthcare workflows across web and mobile products.

Contributed to i4H healthcare products across two phases: connected React Native experiences during 2022 and a longer React web focus through May 2025.

Product challenge

Integrate manufacturer-provided medical-device SDKs and Bluetooth communication in mobile while also evolving web journeys for telemedicine, video consultations, scheduling, landing pages and payments.

Selected contribution
  • Develop healthcare web experiences with React and Next.js.
  • Contribute to telemedicine, video-consultation and appointment-scheduling workflows.
  • Build landing pages and integrate payment providers.
  • Integrate native medical-device SDKs and Bluetooth communication during the initial mobile phase.
Evidence
  • React web delivery from September 2022 to May 2025
  • Native medical-device SDK integrations
  • Bluetooth health-monitoring communication
  • Telemedicine, scheduling and payment workflows
Technologies
  • React
  • Next.js
  • TypeScript
  • React Native
  • Bluetooth
  • Native SDKs
  • REST APIs

EY / CPFL Energia

ENERGY • ENTERPRISE MODERNIZATION

Moving enterprise mobile journeys beyond legacy WebViews.

Joined Ernst & Young through Runtalent to contribute to a CPFL Energia initiative progressively replacing selected legacy WebView flows with native React Native implementations.

Product challenge

Modernize a production enterprise application incrementally, improving selected user journeys and maintainability without requiring a disruptive full rewrite.

Selected contribution
  • Implement selected mobile flows with React Native.
  • Replace legacy WebView-based experiences incrementally.
  • Work with OAuth 2.0 authentication, Firebase Cloud Messaging and DialMyApp integration through native iOS and Android layers.
  • Collaborate within a multidisciplinary enterprise delivery context.
  • Support maintainability improvements through native mobile implementation.
Evidence
  • CPFL Energia production initiative
  • WebView-to-native migration
  • Enterprise mobile product
  • Incremental modernization strategy
Technologies
  • React Native
  • TypeScript
  • OAuth 2.0
  • Firebase Cloud Messaging
  • DialMyApp
  • Native iOS/Android
  • REST APIs

Products are where engineering decisions become visible.

The strongest solutions connect product context, technical judgment and careful implementation. If you are working through a mobile, web or cross-platform challenge, let's start a conversation.

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