● Design, develop, test, operate, and refactor products using Ruby on Rails.
● Propose and implement new features and improvement ideas.
● Collaborate with product managers and designers to define requirements and specifications.
● Architecture design based on requirements, middleware selection
● Continuously learn about technical trends and industry best practices and apply them to the product.
● Measurement of effects for quality improvement and implementation of service improvement measures

Must-have:
● 5+ years of experience in developing and operating Web services using Ruby on Rails
● Experience as a technical lead throughout the full project development lifecycle
● Knowledge and development experience with database systems
● Experience using cloud platforms (AWS, GCP, Azure, etc.)
● Experience in API design, development, and documentation
● Understanding of the software development lifecycle
● Programming, debugging, and testing skills
● Good at English communication

Nice to have:
● Experience of discovering problems from logs and solving problems
● Experience in developing systems using container technologies such as Docker and Kubernetes
● Experience in designing architecture based on application requirements and selecting middleware
● Experience of publishing and contributing OSS
● External technical output experience (writing, technical blog, stage, etc.)

● Great salary package. Annual performance review: twice/ year.
● 13th-salary Bonus for all staff.
● Patents and Inventions bonus.
● Bao Viet Premium Healthcare Insurance Package even during probation period
● Annual Health Check-up for all staff.
● Good career advancement opportunities.
● Opportunity to acquire technical knowledge and experience in the latest technologies.
● 12 days annual leave + New Year holiday according to the Japanese calendar (from Dec 29th to Jan 3rd).
● Company trip, Year-End Party.
● Insurance in full gross salary.
● Gift for Tet/ Autumn Festival
● Free coffee (cappuccino, cafe latte, etc)
● Flexible working
● Laptops Macbook Pro, monitors, etc

● Gift for Tet/ Autumn Festival
● Free coffee (cappuccino, cafe latte, etc)
● Flexible working
● Laptops Macbook Pro, monitors, etc