[HN] Principal Backend Java Engineer (Kotlin, Spring)

Must-have:

• At least 7 years of experience in developing web applications
• Proficiency in Java and Kotlin for BE/willing to study Kotlin to write clear, readable, and maintainable code
• Container-based development (Docker, docker-compose, Kubernetes) experience
• Writing comprehensive and maintainable test code (must)
• ​​Experience using, designing, and building GraphQL Web Service APIs
• Extensive experience with Spring framework: Spring Boot, Spring Data, Spring Security, Spring Batch, Spring Cloud
• Knowledge of Domain Driven Development and Onion Architecture 
• Strong knowledge of sql (MySQL) and no-sql design/optimization and ORM 
• Agile/Scrum software development experience
• Experience in improving application security, performance, and operation
• Experience in educating team members
• Strong sense of ownership

Nice-to-have:

• Strong knowledge of security and performance
• Strong Knowledge of microservices architecture design and implementation
• Willingness to learn and build a deep understanding
• Build and maintain application infrastructure built on AWS