Responsibilities

• Design and development services that can handle a massive amount of data
• Design a 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
• Mentor and train junior/middle members

Requirements

• At least 5 years 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 optimization
• Experience with automation testing, E2E testing
• Extensive knowledge of web security
• Familiarity with CI/CD, Docker
• English communication
• Experience of leading a project as a team leader
• 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)
• Experience of training junior/middle members