I understand that you are looking for someone to update version 13 of Odoo to version 17 and complete the electronic billing for El Salvador. As a full stack developer with experience in the MEAN/MERN stack, PHP technologies (LAMP, Laravel, Codeigniter, CakePHP, Yii2.0 & Zend framework), CMS development (WordPress, WooCommerce), version control (GIT, SVN, TFS), frontend stack (HTML5, CSS3, Sass/SCSS, UI frameworks such as Bootstrap and jQuery UI) and JavaScript frameworks such as React and Angular2+, I believe I am the perfect fit for this project.
My skillset allows me to ensure quality assurance across all aspects of the project while developing strategies to support system applications and providing a positive user experience. Additionally my experience working with version control systems such as Gitlab & Bitbucket provides additional benefits such as collaboration features between teams and version control for project assets such as images and templates.