Full-stack senior Ruby on Rails developer

We are looking for a Senior Software Engineer to join the engineering department, with extensive experience building web applications using business-grade technologies using Ruby on Rails and React, updating apps with new versions of Rails, that enjoy unit testing, who are always looking for optimal performance and have an interest in providing comprehensive and high-quality solutions to customers. - Using Ruby on Rails and React as a primary tools for developing and maintaining web applications. - Managing architecture decisions with the goal of designing maintainable applications that are easy to modify over time. - Pair-programming and providing mentoring to the rest of the team. - Participating in formal and informal code reviews. - Designing appropriate testing strategies, finding the ideal balance between unit and integration testing. - Ensuring the proper functioning of all developed parts, such as integrations with third parties, multiple web browsers, accessibility, proper display on mobile devices, etc. - Preparing technical documentation based on task specifications. - Collaborating with the QA department to create scenarios to be covered by the automated tests as part of the integration tests. - Aiming to be expert in the tools, languages and libraries used by the team, as well as adopting and improving their practices. - Participating in the technical interviews of potential candidates. - Researching and suggesting new technologies in order to apply them to current or future projects. - Promoting the principle of integration and continuous delivery. - Performing the work with responsibility, flexibility and autonomy. - Implementing the architecture designed by a Ruby on Rails veteran who has written multiple Rails books.