WebMD is an Equal Opportunity/Affirmative Action employer and does not discriminate on the basis of race, ancestry, color, religion, sex, gender, age, marital status, sexual orientation, gender identity, national origin, medical condition, disability, veterans status, or any other basis protected by law. About us: WebMD –Tinypulse is an employee experience software company on a mission to transform work into a source of positivity, energy, humanity, and purpose. About the Job: We are looking for a Back-end Developer who is able to build single page applications including implementing, testing, integrating and utilizing APIs with latest front-end web technologies. Back-end Engineer at WebMD ensure we are delivering on its vision of improving the employee experience and helping every employee know their company cares. How do you know if this is the right role for you? If you: Enjoy a fast-paced entrepreneurial environmentHave strong analytical and problem-solving skillsAre coachable and personable, and, ideally, with a good sense of humour!Are a team player, who is willing to disseminate knowledge to other team membersAre a passionate individual who is not afraid to ask questions and eager to learnMaintain a high degree of knowledge of current technologies and toolMake recommendations to improve effectiveness of the teamHave good communication skills, in both Vietnamese and English Your Skills and Experience:Languages: being efficient in any of the following languages: Ruby, Java, PHPFramework: strong experience with Ruby on Rails, Object-Oriented Analysis and Design (OOAD).Ability to build standalone Ruby gems or any reusable librariesThird-party API IntegrationDatabase: relevant experience with relational databases such as MySQL or PostgreSQLTest coverage: competent skills in unit and integration tests (RSpec / Cucumber), solid TDD/BDD experience.Platform: adequate knowledge of Continuous Integration/Deployment, AWS and Docker.Be familiar with Microservices Architecture and Distributed System.Bonus:● UI/UX knowledge ● Experience with React.js ● Familiarity with Reactive Programming or Functional Programming