US based public company, with head office in Cambridge (Massachusetts), is looking for Ruby on Rails developer Company is leading provider of cloud-based services to facilitate email deliverability, that includes bulk and transactional sending, reputation management, compliance auditing, abuse processing and issue resolution.REQUIREMENTS• MS in Computer Science or equivalent• 2+ years of professional software development experience with Ruby and Ruby on Rails on a *nix platform (we are using CentOS as well as Debian).• Demonstrable experience creating or using web-based APIs.• Familiarity with object-oriented design, design patterns, and how they apply to Ruby • Formidable XHTML/CSS/JavaScript and MVC framework experienceWill be a plus: • Knowledge and understanding of data storage/modeling for scalability and performance.• Experience for development using MongoDB, Redis, memcached, or similar technologies.• Experience with the automated build process, unit testing other dev tools.• Familiarity with the git version control system.• Ability to work in an agile environment •    Proven ability to produce quality documents with a minimum of errors We offer:-    Office perks -    Paid time off -    Stock Options -    bonuses -    Stock Options-     Yearly raises, quarterly bonuses, personal bonuses;-     Flexible work hours;-    Paid time off — up to 40 working days (flexible vacation/holiday/sick days);-     Trainings, seminars, conference attendance is encouraged and funded;-    Weekly English lessons;-    Great office location, with parking-    Office perks: Snacks, drinks, Xbox, movies, etc.