Julio C.

Back-end and Systems Engineer

Junior Back-end Developer
5/1/2021 - 6/1/2021

Developed proficiency in inserting new modules for a generic payment processing system, integrating various payment gateways. Implemented layout adjustments in forms using Bootstrap, ensuring responsive and user-friendly designs. Skilled in developing CRONS for updating the database with asynchronous payment data, streamlining the workflow and maintaining data integrity.

Mobile Flutter and Back-end PHP Freelance Developer
3/1/2021 - 8/1/2021

Developed a new version of an application aimed at integrating Brazilian tourists and immigrants in Japan. Integrated a barcode search system for products with external APIs, leveraging data from Amazon, Yahoo Japan, and Rakuten product catalogs. Created and integrated a Flutter package for translating the application using Google Translate and Rakuten Deep Translation.

Mobile Flutter Developer and Back-end Laravel Freelancer
9/1/2021 - Present

Developed new modules for a vehicle maintenance application, focusing on cost-effective parts requisition. Made critical adjustments to APIs to facilitate seamless WebService exchange. Created robust authentication profiles to control access to hidden modules, ensuring secure and tailored user interactions.

Mobile Flutter Developer with Firebase Freelancer
7/1/2021 - Present

Led the development of a new version of an application, transitioning from a prototype created by an external design team. Implemented significant adjustments in map functionalities and developed features for creating routes between the user's current location and carpool destinations. Undertook extensive refactoring of the application to utilize Flutter 2 with Null-safety, aiming to enhance code quality and maintainability. Adopted and implemented the Clean Architecture design pattern to facilitate scalable and testable code.

Mobile Flutter and Back-end PHP Freelancer Developer
6/1/2021 - 9/1/2021

Developed an application for registering and managing collectors and technicians in the agro-industrial sector, showcasing proficiency in full-stack development. Conducted extensive modifications and maintenance of a MySQL database, ensuring optimal performance and reliability. Created a robust Webservice using PHP for querying and inserting data into the MySQL database, facilitating seamless data operations. Engineered a connection system between a local SQLite database and the PHP-based Webservice, enabling efficient data synchronization and consistency across platforms.

Full-stack Laravel Freelance Developer
9/1/2020 - 10/1/2020

Involved in the development of a website and CRM designed to manage content creation, including posts and articles aimed at teaching science in a graphical and engaging manner. Gained proficiency in web development and CRM integration, ensuring seamless content management and an interactive user experience. Focused on utilizing front-end and back-end technologies to enhance the educational platform's functionality and user engagement.

Programmer II
9/1/2018 - 1/1/2020

Specialized in the development and maintenance of back-end and mobile applications targeting various aspects of everyday life, including sales course websites with Moodle integration, food and market delivery apps, and management systems for food industry certifications such as Halal certificates. Proficiency in migrating applications initially developed in React Native with Expo to React Native and Flutter. Demonstrated technical expertise in modern mobile frameworks and platforms.

Computer Science at Federal University of ABC
2017 - 2022

Internet Computing at Etec
2014 - 2017