Flavio L.

Back-end and Systems Engineer

Ruby on Rails Developer
5/1/2021 - Present

Engaged in maintaining and developing new features for core products, ensuring seamless integration with various external systems. Utilized an array of technologies to enhance product functionality and performance, including in-depth work with PHP, Laravel, and Symfony for backend development. Applied front-end expertise using React.js and Angular to create intuitive user interfaces. Demonstrated extensive knowledge in databases such as MySQL and Redis to optimize data handling and storage. Effectively collaborated within a development team utilizing version control systems like Git and SVN to ensure high code quality and consistency. Focused on continuous improvement by integrating automated testing and CI/CD pipelines, employing tools such as Jenkins and Docker for streamlined deployment processes.

Ruby on Rails Developer
1/1/2020 - 5/1/2021

Developed comprehensive expertise in both back-end and front-end development for primary company applications, facilitating the integration of various payment methods. Acquired advanced technical skills in server-side languages and frameworks, ensuring smooth and secure payment processing. Enhanced user interfaces by employing modern front-end technologies, optimizing overall application performance and user experience.

Ruby on Rails Developer
11/1/2018 - 1/1/2020

Specialized in the integration of external APIs, building seamless connectivity with third-party services to enhance system functionalities. Developed robust and secure communication channels using tools and technologies such as RESTful Services and SOAP. Proficiency gained in utilizing OAuth2 and JWT for secure authentication and authorization processes. Experience in synchronizing data across multiple platforms, ensuring consistency and reliability.

Key accomplishments include streamlining data flows and significantly reducing latency in API responses. Applied hands-on expertise with JSON and XML for data interchange, and utilized Postman for API testing and validation. Successfully implemented error handling and logging mechanisms using tools like Logstash and Kibana. Furthermore, collaborated with frontend and backend teams to design and implement efficient API architectures, fortifying the overall system's scalability and performance.

Ruby on Rails Developer
8/1/2017 - 1/1/2020

Enhanced technical expertise through the integration of external APIs, leveraging tools such as Postman for testing and validation. Utilized RESTful and SOAP web services to establish seamless communication between systems. Applied advanced knowledge of JSON and XML for data interchange formats, ensuring efficient and accurate data exchange. Developed middleware solutions utilizing Node.js and Express.js, enhancing the interoperability of various system components. Implemented OAuth and OpenID Connect protocols for secure authentication and authorization. Employed error handling and logging mechanisms using tools like Log4j and Winston to ensure robustness and maintainability. Contributed to the continuous improvement of system performance and reliability through regular code reviews and refactoring practices, following Agile methodologies and using JIRA for task management. Demonstrated acumen in troubleshooting and resolving integration issues promptly and efficiently, ensuring minimal disruption to service functionality.

Ruby on Rails Developer
8/1/2017 - 1/1/2020

Gained substantial experience in integrating with various external APIs, including designing and implementing RESTful and SOAP web service integrations. Developed proficiency in using tools such as Postman for API testing and Swagger for API documentation. Mastered the concepts of OAuth and JWT for secure API authentication, along with handling JSON and XML data formats. Utilized libraries such as Axios and Retrofit for making HTTP requests, ensuring seamless data flow between systems. Employed logging frameworks and monitoring tools to troubleshoot and optimize API performance, ensuring robust and reliable integrations.

Web Developer
1/1/2016 - 8/1/2017

Gained in-depth experience in Python and Django, focusing on the development and maintenance of the company's ERP system. Acquired proficiency in designing and implementing scalable web applications, ensuring robust data management and security practices. Utilized Django ORM for efficient database interactions and streamlined workflows through the integration of RESTful APIs. Leveraged the Django admin interface for back-end data management, employing custom middleware and decorators to enhance performance. Participated in code reviews, maintaining high standards of code quality, and utilized version control systems such as Git for collaborative development. Enhanced troubleshooting and debugging skills using tools like PyCharm and Django Debug Toolbar, contributing to faster issue resolution and continuous system improvements.

Development Intern
2/1/2015 - 12/1/2015

Developed comprehensive expertise in Python and Django through the creation and enhancement of a company's ERP system. Demonstrated advanced skills in designing, implementing, and maintaining server-side logic. Optimized the performance of the ERP by leveraging Django's robust framework capabilities, ensuring efficient database connections and query handling. Developed RESTful APIs to enable seamless integration with other systems and applications. Employed PostgreSQL for database management, ensuring data integrity and reliability. Utilized Git for collaborative code version control, enabling smooth coordination with other team members. Enhanced the user experience by applying front-end technologies, ensuring a cohesive and intuitive interface for the system's users.

Internet Systems at Southeast Minas Federal Institute of Education, Science, and Technology
2011 - 2015