Principal Java (Kotlin) Engineer

• Develop scalable, high secure and high performance applications
• Design and build a complex architecture of new products and features
• Quickly fix system failures or abnormalities by monitoring or notifications
• Introduce tools, systems and cultures for efficient development
• Develop fundamental skills of team members

Must-Have:

• From 5 years of experience in developing web application
• Proficiency in Java and Kotlin (must) languages 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, building REST/Web Service APIs
• Extensive experience with Spring framework: Spring Boot, Spring Data, Spring Security, and Spring Batch
• Deep knowledge of OOP and design pattern
• Strong knowledge of databases (MySQL) design/optimization and ORM 
• Agile/Scrum software development experience
• Experience to improve application security, performance and operation
• Experience to educate team members
• Strong sense of ownership
• Good verbal and written communication in English is required

Nice to Have:

• Strong knowledge on security and performance
• Experience with microservices architecture design and implementation
• Willingness to learn and build a deep understanding
• Experience of designing GraphQL API schema
• Knowledge of Domain Driven Development and Onion Architecture 
• Build and maintain application infrastructure built on AWS