Senior Developer Ruby on Rails, spree framework

We're looking for a Senior Web Developer with experience in e-commerce, with knowledge of Ruby on Rails for a 3-4 month contract (at the beginning) for a project related to the Spree e-commerce platform. As lead developer, you will be able to define the architecture and technology capabilities of the platform, including technology and automation choices. Your skills should include - Good knowledge of OO and HTTP / S - Experience with Ruby / Rails (This doesn't have to be your primary language) - Strong JavaScript foundation and commercial experience with frameworks such as VueJS, JQuery - Create REST-compliant services and APIs - Proficient in Unix systems, process management, cron jobs, and server deployment - Good understanding of automated unit testing and functional testing - Basic understanding of AWS and the ability to manage implementations Desired experience (although the following skills are not mandatory, each experience is a plus) - Ansible, Docker, Puppet, Chef, Node, React JS - Docker, Service Discovery, React - Experience in search optimization and semantic search