Resume
I’m Sidney Lima, a Mobile and Full Stack Developer specialized in ReactJS and React Native since 2021, with a strong focus on performance optimization, accessibility, and consistent digital experiences for end users. I work with JavaScript, TypeScript, React Native, Next.js, Node.js, Express, Tailwind, Styled Components, Prisma, Firebase, Google Cloud Platform, and CI/CD practices.
My journey includes working on large-scale mobile products, such as Rock Encantech’s SuperApp, healthcare projects like MED24, an ERP platform and internal AI tools at DGAZ, as well as systems and APIs developed at Porto Digital. I also have experience with Android and iOS store releases, web deployments, performance monitoring, accessibility (WCAG), SEO, Google Analytics, Google Tag Manager, Design Patterns, SOLID, and Clean Code.
Experience
Rock Encantech
São Paulo - SP, Brazil
Mid-Level Full Stack Developer
June 2025 – Present
Retail SuperApp Mobile
- Development and evolution of a white-label retail SuperApp Mobile using React Native in a large-scale product serving over 150 clients and 3.5 million active users.
- Contributed to implementation decisions, feature refactoring, new miniapp integrations, platform support, and continuous production stability improvements.
- Participated in building the app backoffice for application management and configuration in a white-label environment.
MED24
Bahia, Brazil
Mobile Developer
March 2025 – May 2025
MED24 mobile application
- Development of the MED24 mobile app from a web platform, bringing scheduling features, connectivity with doctors and clinics, and quick access to the system into the mobile experience.
- Structured the project with a focus on performance, reusable components, code organization, offline experience, and mobile usability.
- Created custom animations with Reanimated, including a loading animation inspired by heartbeats.
DGAZ Marketing
São Paulo - SP, Brazil
Mid-Level Full Stack Developer
February 2022 – January 2025
Development of an Application for Customer Communication and Support
- Contributed to the development of an application for sending information such as reports, invoices, account management, communication dispatch, and support ticket creation.
- This resulted in a 30% increase in communication efficiency with clients. The app is available for download in app stores.
Development of Websites and Web Applications
- Creation and maintenance of customized websites for clients, including WordPress development, implementation of e-commerce stores, landing pages, and interactive web systems with React and Next.js.
- Contributed to an SEO project for website optimization, improving PageSpeed scores.
Development of an Internal Tool for Content Production
- Created an internal tool to automate the generation of base texts for posts, content review, and on-page SEO optimization using Artificial Intelligence.
- Focused on agility and efficiency in content management, saving 50% of time in projects.
ITCOM - IT Support and Consulting
Bahia, Brazil
Front-End Developer
August 2024 – September 2024
WhatsApp messaging application
- Development of a messaging application integrated with the WhatsApp API, using Next.js, TypeScript, and TailwindCSS with a focus on scalability, performance, and user experience.
- Implemented interactive interfaces, real-time chat features with WebSocket, HTTP service abstractions, and state management with React Context.
- Organized the architecture by context/feature, making maintenance, evolution, and agile collaboration easier.
Software Engineering – Porto Digital
Recife - PE, Brazil
Front-End Developer
August 2022 – July 2024
RunCife
- Ideation and prototyping of a technological solution proposed by Porto Digital.
- A mobile app named RunCife was proposed, fully gamified, initially aimed at encouraging people to engage in physical exercise, with turn-based battles against opponents spread across the city.
Order Management System
- Prototyping and development of a technological solution to enhance the Order Management System.
Finance System - API Backend - Mobile Application
- Contributed to the development of an API for a mobile finance application for a company within the Porto Digital ecosystem.
Multi Theft Auto
Recife - PE, Brazil
Full Stack Developer
January 2017 – December 2017
Scripts and Applications for Servers
- Development and maintenance of custom scripts for Brazilian servers of the game Grand Theft Auto (MTA), focusing on gameplay features and system integration.
- Worked on performance improvements, bug fixes, and creation of new game mechanics.
Skills
Languages
Frameworks
Platforms, Libraries and Other Tools
