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How to Architecture a React Native App in 2023

## About the company

Casa do Saber is an educational streaming platform with more than 250 courses in different areas of knowledge.

## Contributions

- Led the redesign and rebuild of the mobile app, utilizing React Native, TypeScript, React Query, and other core libraries to deliver a high-performing and user-friendly app.
- Conducted regular code reviews to ensure adherence to best practices and maintain high-quality standards for the codebase.
- Implemented a new authorization service using AWS Cognito to enhance security measures and protect sensitive user data.
- Developed and implemented a Design System and components library to ensure consistency in design and user experience across applications.
- Streamlined the release process by automating the CI/CD process, reducing the time and effort required for manual testing.
- Wrote comprehensive E2E and Unit tests for both the mobile and web apps, utilizing Detox and Jest to ensure thorough testing and ensure high-quality releases.

## Achievements

- Successfully delivered the entire v2 of the mobile app in under 3 months, exceeding project expectations and delivering a high-performing and user-friendly app.
- Significantly improved the performance, maintainability, and scalability of both the web and mobile apps, resulting in a more efficient development process and a better user experience.
- The new Frontend architectures enabled us to scale our product and achieve a 475% increase in paid userbase within one year, positioning the company for continued growth and success.
- Implemented a fully automated CI/CD pipeline with comprehensive end-to-end and integration tests, allowing us to deploy production-ready releases on a daily basis, ensuring timely and efficient delivery of new features and improvements.
- The Design System and components library caused a huge impact in the consistency of our interfaces, and in the user experience, resulting in a more cohesive and polished product.
- Improved the security measures of the app by implementing a new authorization service using AWS Cognito, protecting sensitive user data and improving user trust in the app.

iOS & Android App

Casa do Saber

My personal website is built using a variety of technologies to ensure a seamless and user-friendly experience. The foundation of the website is built on Next.js, a framework for building server-rendered React applications. This allows for efficient performance and dynamic content rendering.

In addition to Next.js, I also utilized HygraphCMS to manage and organize the website's content. This headless CMS allows for easy content updates and management without the need for any coding knowledge.

To ensure the website's style and layout were consistent, I incorporated TailwindCSS, a utility-first CSS framework. This allows for fast and efficient styling of the website's elements.

Finally, I implemented GraphQL to handle the content data from the CMS. It's perfect for a content-based and static-generated app because you can easily grab only the data you need.

Overall, my personal website is built with the latest and most efficient technologies to ensure the best user experience. Thank you for visiting my website, and I hope you enjoy exploring it!

Portfolio & Blog

Personal Website

## About the company

Panvel is one of the largest pharmaceutical and cosmetics companies in Brazil, with more than 550 stores. More than a pharmacy, each unit is part of an extensive health and wellness network that provides people with a unique care experience.


Panvel Farmácias

## About the company

Levers helps companies reduce overdue payments by 50% and unlock cash trapped in Accounts Receivable.

## Contributions

- Led product development using Next.js, TypeScript, TailwindCSS, Python, Node.js.
- Designed system architecture; made key technical decisions.
- Worked closely with founders and team, turning ideas into a functional product.
- Managed projects from start to finish, focusing on problem-solving and value delivery.
- Encouraged ownership mindset in the team, aligning efforts with Levers' success.
- Enhanced teamwork by consistently sharing updates and feedback, ensuring goal alignment.

## Achievements

- Successfully accelerated product releases, demonstrating the ability to rapidly adapt to new requirements and changes, crucial for finding product-market fit.
- Played a key role in onboarding new customers by swiftly integrating their feedback and requirements into the product development cycle.
- Established a consistent delivery schedule, shipping new customer-requested features weekly, enhancing customer satisfaction and engagement.
- Contributed significantly to the team's agile response to market demands, directly impacting the product's relevance and success in a competitive landscape.

Donald Silveira

Full-Stack Engineer / Mobile Engineer

Recent Posts

Journey through my experiences and learnings

Full-stack development has never been this easy

How to Architecture a React Native App in 2023

Expertise in Action

A selection of my most excited professional projects

Casa do Saber

iOS & Android App

Personal Website

Portfolio & Blog

Panvel Farmácias

iOS & Android App

Levers

Web App