● 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)

● Full salary in probation
● Insurance: Applied from Probation period:
● Social Insurance, Health Insurance, Unemployment Insurance (on 100% salary)
● Private health insurance & accident insurance. From Managing level: extra for family members
● Bonus: 13th month salary
● 16 - 24 paid days off and more
● Paternity leave: Extra 5 days
● Annual company trip; Quarterly team building
● Billiards & Running club
● Annual health check
● Well-equipped facility: Macbook pro, additional monitor,..
● Caring Career & Development:
● Clear Career path
● Foreign language & International technology-related certifications sponsoring
● External & internal training courses
● Soft-skill workshops
● Tech seminars
● Monthly and biannual Recognition Awards
● Performance & salary review: twice/year (Jun & Dec)

● Hybrid working; Flexible time; Macbook Pro
● L&D programs; 17 days off
● 13.7 million B2C users; 140,000+ business customer