Principal Java Spring Boot/ Kotlin Engineer

TOP 3 REASONS TO JOIN US

• Perks you will love: Hybrid working; 16 - 24 paid days off; Top modern & sufficient devices
• Solid global business: No.1 market - 13.7 million B2C users in Japan; 140,000+ paying business customers; Listed in the prime market of Tokyo Stock Exchange
• Hub of growth support: Fintech industry; Tailored L&D programs for individual growth

JOB DESCRIPTION

• Develop scalable, highly 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
• Resolve any technical issues, risks, and challenges, escalating as necessary and providing solutions

JOB REQUIREMENT

Must-have:

• At least 8 years of experience in developing web applications
• Good understanding of SOLID principles, common design patterns and best practices
• 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/Clean Architecture
• Solid experience with MySQL or PostgreSQL including performance tuning and optimization
• Agile/Scrum software development experience
• Experience in improving application security, performance, and operation
• Experience of leading a project as a team leader, 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