• Design and develop services which can hanlde a massive amount of data
• Design good database considering functional and non-functional requirements
• Write clean and maintainable code
• Improve code by continuous refactoring
• Monitor application performance and fix system failures
• Train junior/middle members

Must-Have

• From 3-5 year' experience of development with Ruby on Rails
• Good understanding of SOLID principles, common design patterns and best practices
• Solid experience with MySQL or PostgreSQL including performance tuning and optimization
• Experience with complicated system architecture which includes API linkage with external systems
• Experience with application performance monitoring and opimization
• Experience with automation testing, E2E testing
• Extensive knowledge of web security
• Familiarity with CI/CD, Docker
• English communication
• Strong sense of ownership

Nice-To-Have

• Experience with Amazon Web Services
• Experience with service operation on production
• Experience with frontend development (TypeScript, ReactJS/VueJS)

• Mini test  (15 mins)
• Technical interview (90 mins)
• Culture fit interview (45 mins)