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Work Background
UtilityStaff Software Engineer
Jul. 2023United States, New York- Technical owner of a subscription-based fitness platform with 30,000+ active paying users, spanning mobile (iOS/Android), web, and internal admin systems
- Designed and implemented the end-to-end monetization platform, including In-App Purchases and Stripe, supporting recurring subscriptions and one-time digital products
- Owned the end-to-end platform architecture across mobile (React Native, iOS/Android), web, and backend, including a customer-facing website (subscription purchase, account management) and an admin panel used by internal teams to manage workout programs and content
- Established a monorepo architecture shared across mobile, web, and backend systems, improving code reuse, consistency, and developer productivity
- Built and maintained a data-driven experimentation and analytics foundation, leveraging Braze, Mixpanel, and Google Tag Manager to support marketing campaigns, A/B testing, and product decision-making
- Designed and implemented a feature flag strategy to enable progressive rollouts, experimentation, and safer releases across mobile and web
- Designed and implemented a push notification system integrated with marketing campaigns and core product features, supporting user engagement and lifecycle communication
- Defined and implemented a testing strategy across mobile and backend systems (unit and integration tests), improving release confidence and reducing production regressions
- Improved release reliability and developer velocity through CI/CD automation and streamlined app store publishing workflows website: https://www.movesapp.com/
Google Play: https://play.google.com/store/apps/details?id=com.madelinemoves.train.store
App Store: https://apps.apple.com/br/app/moves-by-madeline/id1363272340
Hinge HealthSenior Software Engineer
Jan. 2022 - Jul. 2023- Contributed to the development of a healthcare mobile platform with 100,000+ active users and 500,000+ downloads, operating within a large, cross-functional US product organization
- Played a key role in integrating a native Android and iOS machine-learning camera solution into a React Native application, collaborating closely with a specialized motion-tracking and ML team
- Worked across React Native, native Android (Java), and native iOS (Swift) layers to expose complex native functionality through a stable mobile interface
- Contributed to backend services (NestJS, GraphQL) while partnering with backend, data, and product teams to deliver features in a regulated, quality-sensitive healthcare environment
- Helped maintain high reliability and release quality through automated testing, monitoring, and disciplined CI/CD processes Google Play: https://play.google.com/store/apps/details?id=com.hingehealth.phoenix
App Store: https://apps.apple.com/us/app/hinge-health/id1429270372?platform=iphone
FullStackSenior Software Engineer
Jan. 2022 - Jul. 2023- Mobile app development for a product company (Hinge Health) with a mobile app with more than 100k users
- Use React Native, Typescript, Redux, GraphQL, Apollo, Jest, Swift for iOS, and Java for Android
- Native mobile app development for Android, and iOS
- Backend development using NestJS, PostgreSQL, docker, GraphQL, Contentful, Mixpanel, and Amazon AWS infrastructure
- Write unit tests and end-to-end tests for NestJS
- Write Unit tests and integration tests for React Native using Jest and React Testing Library
- UX screen’s development following Figma layouts sent by the design team
- Work with Bitrise CI/CD tool to publish the app to Google Play and App Store
- Work in an Android Java native library and in an iOS Swift native library (the machine learning camera software is written in C and we have an Android and iOS project to import it as a React Native library)
- Work with the Hinge Health motion tracking team to add to the app a machine-learning camera solution that uses the device's camera to detect user movements and provide feedback while the user is doing physical exercises.
- Review PRs
- Use Sentry for error reporting
- Work in a team with 12 people and across other teams of the organization (when needed) using Scrum and Agile
- Development of the Hinge Health mobile app (app with more than 100.000 users) Google Play: https://play.google.com/store/apps/details?id=com.hingehealth.phoenix
App Store: https://apps.apple.com/us/app/hinge-health/id1429270372?platform=iphone
RENATO POLICENO PROBST - RPP TREINAMENTOS E CONSULTORIABusiness Owner
Sep. 2020
Sistema FAEPSenior Software Architect
Jan. 2019 - Jan. 2022Curitiba e Região, Brasil- Served as the architectural authority for the company’s digital platforms, leading the expansion from a web-only presence to a mobile, web, and multi-channel ecosystem serving 30,000+ users.
- Architected and scaled platforms supporting a high-traffic website (20,000+ monthly visits) and a mobile app with 15,000+ downloads, driving decisions around performance, offline support, data synchronization, and infrastructure costs.
- Defined end-to-end architecture across mobile apps, web platforms, backend services, analytics, and data pipelines, partnering with business stakeholders, product managers, and designers to translate complex requirements into scalable solutions.
- Led development of a cross-platform mobile application (React Native) and key website features, including offline-first functionality backed by Firebase Firestore, and implemented a custom data aggregation platform using backend services and scheduled jobs (NestJS).
- Architected integrations with agricultural and commodities data, combining third-party APIs and custom web crawlers, and led development of course discovery and enrollment platforms across mobile and web for in-person professional training programs.
- Designed and delivered a multi-channel chatbot and helpdesk platform used across the website, mobile app, WhatsApp, Instagram, and Facebook, backed by custom APIs for weather, market data, courses, office locations, and escalation to human support.
- Led development of an internal admin platform for content and push notifications, implemented cross-platform analytics with Google Analytics, contributed directly to backend development, owned CI/CD and release processes using Fastlane and Jenkins, and partnered with design teams to define and evolve the mobile design system. Google Play: https://play.google.com/store/apps/details?id=br.org.sistemafaep
App Store: https://apps.apple.com/br/app/sistema-faep/id1439067462
website: https://www.sistemafaep.org.br/
Atrativa WebSoftware Engineer
Jun. 2016 - Dec. 2016Curitiba Area, Brazil[Android] – eduColaborativo: An educational platform developed for Expoente where students and teachers can see school grades, classes, chat and collaborate together. [Android][iOS] – Golmob: Mobile application for sports events ticket purchase. Customers are able to buy tickets for football events through the application. Every ticket purchase generates a QR code that can be read by an application used by doormen at stadium entrances
ENG DTP & MultimídiaSoftware Development Instructor
Feb. 2016 - Jan. 2019Teach mobile app development (Android, iOS, React Native and Ionic) and web development (Angular, Bootstrap) courses for companies such as Banco do Brasil, TRE-PR, Anatel, Bradesco, ExxonMobil, Senar-PR, PGR (Procuradoria Geral da República) MPAP (Ministério Público do Estado do Amapá), Embrapa, CNMP (Conselho Nacional do Ministério Público), and CREA.
RockAppsSenior Software Engineer
Jun. 2015 - Feb. 2019Curitiba, Paraná, Brasil- Delivered 10+ production mobile applications across Android and iOS for enterprise clients, including Renault, Banco do Brasil, and Claro Brasil, in a high-velocity agency environment
- Built cross-platform and native mobile solutions using React Native, Android (Java/Kotlin), and iOS (Swift)
- Established strong foundations in mobile architecture, CI/CD, automated testing, and app store publishing
- Automated build and release workflows using Fastlane and Jenkins to publish mobile applications to Google Play and the App Store
- Contributed to the definition and adoption of mobile design systems, working closely with designers to standardize UI components and interaction patterns across projects
- Worked in Scrum-based teams, collaborating with product managers and designers using Jira to plan, track, and deliver work across multiple concurrent client projects
DevmakerSoftware Engineer
Oct. 2014 - Feb. 2015Curitiba[Android] – SóCarrão: Application for the largest vehicles ads portal of the southern region of Brazil. REST API, and payment gateway integration (to pay for ads).
Google Play: https://play.google.com/store/apps/details?id=socarrao.devmaker.com.br.socarrao&hl=pt_BR&gl=US [Android] – Placoteca: Guide for the constructive solutions of Placo, an affiliate of Saint Gobain group. REST API, and pdf download and reading. [Android] – ABERT Mobilize-se: Integration of Radio Stations of the ABERT, the Brazilian Association of Radio and TV stations. It jas connectivity with streaming systems and REST API integration. [Android] – QuiZapp: Quizz game with questions and answers. It has social network integration and REST AP integration.
Secretaria do trabalho, emprego, economia e renda (SETS) PRIT technician
Jun. 2012 - Aug. 2012Curitiba e Região, BrasilIT Technical support
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