EXPERIENCE

Engineering across products, platforms and real-world constraints.

Selected experience contributing to mobile, web and cross-platform products across banking, healthcare, energy and independent consumer software.

Fabricio Chiaradia

My experience has been shaped by production environments where reliability, collaboration and product context matter as much as implementation.

Across regulated banking, connected healthcare, enterprise modernization and independent products, I have contributed by translating complex requirements into maintainable software and helping teams evaluate practical technical paths.

Selected experience.

A curated view of the contexts, contributions and evidence behind the work.

Banco Sofisa

Senior React Native Developer

May 2025 – Present

REGULATED BANKING

Evolving critical mobile journeys in production.

Contributing to the evolution of a production mobile banking application, implementing customer-facing features across authentication, biometrics, Pix, Pix Automático, payments, transfers, cards, onboarding, investments and account opening.

Selected contribution

Implement customer-facing features with React Native and Expo across critical banking journeys.
Translate product, business and UX requirements into maintainable mobile implementations.
Collaborate with product, design, QA and backend teams on delivery and implementation 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

Features delivered across authentication, payments, transfers, cards, onboarding and investments.
Production work within a regulated environment and staged release process.

Technologies

React Native
Expo
TypeScript
Styled Components
React Query
REST APIs
Firebase Cloud Messaging
Firebase Remote Config
Jest
CI/CD

Chiaradia Labs

Co-founder & Product Engineer

May 2026 – Present

EARLY-STAGE VENTURE • CONFIDENTIAL PRODUCT

Building a new product and its engineering foundation from the ground up.

Co-founded Chiaradia Labs in May 2026 and currently building a confidential cross-platform product from the ground up. The work spans product architecture, mobile and web frontends, backend APIs, authentication, cloud infrastructure, CI/CD and deployment while intentionally keeping the product identity private.

Selected contribution

Work hands-on across mobile and web implementation while contributing to backend APIs, authentication, cloud infrastructure and delivery automation.
Design API, authentication, environment and deployment strategies for a production-grade product.
Configure and maintain the platforms used to host and publish web applications, backend APIs and managed databases across environments.
Establish CI/CD and delivery automation for continuous product evolution.
Use AI-assisted development with engineering review, validation and technical accountability.

Evidence

Chiaradia Labs was formally established in May 2026.
A confidential cross-platform product is currently in active development.
The product name and identifying details remain intentionally undisclosed.

Technologies

React Native
React
Expo
TypeScript
Fastify
PostgreSQL
Cloudflare
GitHub Actions

Bennu Brasil

Senior React Native Developer · Freelance

Apr 2025 – Jan 2026

DIGITAL EDUCATION • WELLNESS

Building and modernizing mobile experiences for two content platforms.

Freelance engagement with Bennu Brasil on React Native products for Android and iOS. For Ábaco Enciclopédia, built the Brazilian version's front end from scratch, replacing reliance on an application from Bennu Argentina. Later in the engagement, contributed to the redesign and evolution of Fluid, a yoga and meditation app.

Selected contribution

Work with IT and Product teams to build and evolve mobile applications with React Native and Expo.
Develop much of the Ábaco front end as the sole front-end developer for a substantial part of the project, contributing throughout its phases.
Implement learning features in Ábaco, including quizzes, an EPUB reader for course materials and an article area.
Contribute to Fluid's redesign with new sections, screens and API integrations.
Manage code in Bitbucket and support Android and iOS delivery with Expo EAS and TestFlight.

Evidence

Ábaco completed and published on Google Play and the App Store during the engagement.
Contributed to Fluid's update during the engagement.
Engagement from April 2025 to January 2026.

Technologies

React Native
Expo
TypeScript
REST APIs
Bitbucket
Expo EAS

Compass UOL

Senior React Native Developer

Jul 2024 – May 2025

CONSULTING • BANKING

Building continuity from consulting delivery to the internal team.

Worked as a consultant allocated to Banco Sofisa before joining the internal team, contributing to React Native delivery in a financial product environment.

Selected contribution

Contributed to React Native features in a client consulting context.
Collaborated with product and engineering teams in an agile environment.
Supported the continuous evolution of a production financial application.

Evidence

Selected to continue directly with the internal Sofisa team after the consulting period.

Technologies

React Native
Expo
TypeScript
REST APIs
CI/CD

EY / CPFL Energia

Senior React Native Developer

Nov 2022 – Mar 2024

ENERGY • ENTERPRISE MODERNIZATION

Replacing legacy WebView flows with native mobile experiences.

Joined Ernst & Young through Runtalent to work on a CPFL Energia initiative focused on progressively modernizing an enterprise mobile application by replacing legacy WebView-based flows with native React Native implementations.

Selected contribution

Modernized legacy mobile features through incremental native implementation.
Replaced selected WebView flows with React Native experiences.
Worked with OAuth 2.0 authentication, Firebase Cloud Messaging and DialMyApp integration through the native iOS and Android layers.
Published release builds to the App Store and Google Play, supporting production delivery for iOS and Android.
Collaborated within a multidisciplinary enterprise delivery context.

Evidence

Contributed to a production enterprise mobile modernization initiative at CPFL Energia.
Supported mobile publication across the App Store and Google Play.
Improved maintainability of selected flows by moving them away from legacy WebView implementations.

Technologies

React Native
TypeScript
OAuth 2.0
Firebase Cloud Messaging
DialMyApp
Native iOS/Android
Google Play
App Store
REST APIs

i4H

React Native Developer → React Developer

Jan 2022 – May 2025

HEALTHCARE • WEB & CONNECTED DEVICES

Building healthcare products across web and connected mobile experiences.

Worked on healthcare products across two distinct phases. From January to August 2022, contributed as a React Native developer, integrating native SDKs from medical-device manufacturers and enabling Bluetooth communication with health-monitoring devices. From September 2022 to May 2025, focused primarily on React web products, contributing to telemedicine, video consultations, appointment scheduling, landing pages, payment integrations and other platform capabilities.

Selected contribution

Developed healthcare web experiences with React and Next.js during the primary phase of the engagement.
Contributed to telemedicine, video-consultation and appointment-scheduling workflows.
Built landing pages and integrated payment providers across web product journeys.
Integrated native SDKs from medical device manufacturers.
Implemented Bluetooth communication with health-monitoring devices during the initial mobile phase.

Evidence

The primary phase of the engagement focused on React web delivery from September 2022 to May 2025.
The initial mobile phase enabled Bluetooth health monitoring through native medical-device SDK integrations.

Technologies

React
Next.js
TypeScript
React Native
Bluetooth
Native SDKs
REST APIs

Chiaradia Sistemas

Founder & Mobile Product Engineer

Jan 2021 – Present

INDEPENDENT CONSUMER PRODUCT

Building and evolving a consumer product from idea to production.

Built and continues to evolve an independent consumer Android application from concept to production, reaching 829K+ installs, 24K active devices and 6K+ monthly active users while managing publication, monetization, stability and continuous product improvement.

Selected contribution

Build and evolve a consumer mobile product from concept through production delivery.
Manage Google Play publication, releases, monetization and continuous product improvement.
Use Firebase Remote Config to support remotely managed product configuration and incremental evolution.
Monitor stability, product behavior and user feedback to guide incremental improvements.
Maintain the application architecture and delivery foundation as the product evolves.

Evidence

829K+ installs, 24K active devices and 6K+ monthly active users on an independent consumer product.
Continuous production evolution.

Technologies

React Native
Expo
TypeScript
Google Play
AdMob
Crashlytics
Firebase Remote Config
MMKV
Google Login

Experience shaped by production.

Different domains create different constraints. The consistent thread is careful engineering: understand the context, collaborate across disciplines and improve what reaches real users.

Explore selected projects →