Evandson – Ruby on Rails, Ruby, PostgreSQL

It is the world’s leading digital infrastructure company. They interconnect industry-leading organizations within such industries as finance, manufacturing, retail, transportation, government, healthcare, and education across a digital-first world.

• Maintained the Rails API fast and responsive;
• Solved issues related to concurrency;
• Wrote unit, integration, and e2e tests;
• Configured CI/CD pipelines and deployments.
• Upgraded our Rails API from version 5.2 to 6.0, and finally 6.1.

It is a company with helps restaurants sell better and helps the owner to have better control of everything inside of the restaurant with a smart integrated solution.

• Implemented the payment system from the ground up;
• Participated in the architecture decisions of the payment platform.

It is an ed-tech company focused on training and teaching new skills to business teams. It was recently acquired by large brazillian media company

• Was responsible for maintaining the Rails application stable and updated;
• Was responsible for updating the versions of Rails from version 5.0 to version 5.1, and 5.2, last we ended up in Rails 6;
• Worked closely with the support team to fix issues in the platform;
• Wrote SQL reports for the support team.

It is a company focused on developing Apps and Web Applications, mostly in partnership with the Brazilian Government.

• Participated in different projects from the planning step until the production one;
• Configured the CI/CD Pipeline for the projects;
• Configured the Rancher Server and application deployments;
• Debugged and resolved the application issues;
• Integrated the apps with third-party APIs.

It is a drop shipping company that helps people to sell products online with special and selected suppliers, so clients can choose tons of products and all the products and suppliers pass through the company's sieve.

• Created the first plugin that integrates our Rails API with WooCommerce and WordPress;
• Debugged and resolved the Rest API issues;
• Wrote unit, integration, and e2e tests.