João E.

Back-end and Systems Engineer

Android Developer
1/1/2023 - 1/1/2024

Contributed to the development of a product designed to enhance sales and streamline service offerings in physical stores across Brazil. Developed proficiency in PHP, Doctrine, and Silex. Extensive work on Ext JS 4.2, NodeJS, and Vue.js. Demonstrated skills in PostgreSQL and MongoDB. Ensured collaborative code maintenance using SVN and Git. Utilized agile methodologies to ensure timely and efficient project completion, while collaborating closely with cross-functional teams to align technical solutions with business objectives. Implemented robust testing and debugging processes to ensure product reliability and performance.

Android Developer
3/1/2021 - Present

Collaborated on the development of a product facilitating global cryptocurrency exchanges among numerous users, managing thousands of real-time requests and updates. Utilized innovative technologies and design patterns including GRPC, Android Compose, and Clean Architecture.

Android Developer
4/1/2020 - 2/1/2021

Developed a white-label mobile application dedicated to education, utilizing Kotlin as the primary programming language. Employed the latest architectural guidelines and Jetpack updates, incorporating Model-View-ViewModel (MVVM) architecture, Firebase for backend services, and the Navigation component for efficient UI management. The project emphasized robust architecture and modern Android development practices to ensure an efficient and scalable mobile application.

Front-end/Back-end Developer
1/1/2020 - 4/1/2020

Spearheaded the development of a hotel management system leveraging Vue.js to create a responsive and dynamic user interface. Utilized AWS technologies extensively to provide a robust and scalable backend infrastructure. This included deploying solutions on AWS EC2 instances for processing, using AWS S3 for secure and reliable storage, implementing AWS RDS for handling relational databases, and employing AWS Lambda for serverless computing tasks. Implemented continuous integration and deployment pipelines with AWS CodePipeline and CodeBuild to ensure seamless deployments. The project required deep knowledge and application of RESTful API principles and secure API management. Also focused on enhancing application performance by utilizing AWS CloudFront for content delivery and AWS CloudWatch for monitoring and log management. This role demanded proficiency in JavaScript, HTML5, CSS3, and understanding of modern web development best practices.

Programmer
7/2/2017 - 12/2/2018

Developed expertise in HTML, CSS, and JavaScript to build responsive and interactive web interfaces. Worked extensively with modern frameworks such as React.js, Angular, and Vue.js, contributing to both new projects and longstanding systems. Showcased proficiency in managing state using Redux and Vuex, and used tools like Webpack, Babel, and Gulp for optimizing and automating build processes. Demonstrated strong knowledge in RESTful APIs and AJAX for dynamic content updates. Ensured high code quality by implementing unit tests with Jest and end-to-end tests with Cypress. Utilized version control systems, notably Git, to maintain collaborative code integrity and streamline development workflows. Emphasized optimized performance and accessibility in web applications by adhering to best practices and industry standards.

Information Systems at Federal University of Rio Grande do Norte
2017 - 2022