Java - Back End

JD Java Backend

Position Details

We are looking for developers who are willing to keep growing with the business.

You are expected to develop and operate APIs for inbound travelers to Japan which reaches 40 million in 2025. In order to do that you are expected to collaborate with your team members product managers frontend engineers and related teams (e.g. payment rewards membership) to lead the renewal from the current website toward success.

Post renewal you are expected to improve features and performance of APIs continuously. You are also expected to provide stable APIs for travelers and partners by finding issues with monitoring alerting collaborating with support engineers.

You will be a role model for the next generation engineers with your technical skills and lead growth of the organization.

Mandatory Qualifications:

Technical Skills / Experiences

• 5 to 8 years of experience
• Experience of web API development and operation with Java and Spring Framework is must.
• Experience of web API development on Linux
• Experience of designing tables and queries of RDBMS (e.g. Oracle) for high performance applications
• Experience of team development with VCS (e.g. GitHub / Bitbucket) and pull requests.
• Experience of code review and design review
• Experience of improving architecture performance analysis / tuning
• Knowledge of web API operation performance improvement and security
• Experience of designing architecture and choosing technology stack (e.g. middleware)
• Experience of automation test (e.g. xUnit / xSpec)
• Skills of database design considering architecture for several systems
• Experience of interface design of web API

Development Environment

• Development: Java Spring Framework Spring Boot Spring Data Spring Cloud Config Spring Cloud Sleuth JUnit Apache Maven IntelliJ IDEA Swagger
• middleware: Oracle MongoDB Kafka Apache HTTP Server Apache Tomcat
• Monitoring: Jennifer Zipkin ELK stack (Elasticsearch Logstash Kibana) Grafana
• CI: Jenkins SonarQube Ansible
• Others: Microsoft Teams Confluence JIRA BitBucket etc.

Soft Skills / Experiences

• You can facilitate active and productive discussion in English.
• You have motivation for team development.
• Experiences of team leader or project manager
• You have ownership for software development.
• You continuously learn new technologies and find ways to solve issues and requirements.

Desired Qualifications:

• Experiences of NoSQL (e.g. MongoDB Elasticsearch) schema / query design
• Experiences of development on IaaS CaaS PaaS
• Experiences to find issues and improve performance of middlewares by analyzing source codes
• Experiences of microservice architecture
• Experiences of development of web application framework or libraries
• Experiences of launching new services or challenges in growth phase of services
• Knowledge of tracking Cookie
• Experiences of all aspects of application lifecycle (e.g. planning requirement definition