• Get to touch on new technology and grow your technical skill
• Get to work at one of the biggest e-commerce company in the world
• Work with many people with different background all over the world

About The Company
This company is a leading online travel service in Japan, dedicated to "Making People Happy with Travel".

Since our founding in 1996, we have consistently led the industry, challenging the norms and fostering innovation. With growing aspirations to expand beyond borders as a Global Innovation Company, we are not confined to Japan but continue to strive daily to become the world's premier travel reservation service.

What We Are Looking For
We are seeking like-minded individuals who resonate with our purpose. Join us to propose new forms of travel to people around the world, and strive to be pioneers shaping the future of travel. Your passion and creativity will breathe new life into the travel industry, filled with infinite possibilities. We eagerly await your application and potentially invite you to take on challenges in a diverse environment in collaboration with new peers.

Job Description
In this position, you will be responsible for the development and operation of a wide range of travel services, including hotels, air tickets, and package tours. This is a challenging role aimed at leading the travel industry, where you are expected to deliver services using cutting-edge technology to meet the diverse travel needs of today.

This company is one of the top online travel sites in Japan, requiring development skills to support its large-scale transaction processing. Particularly during the quarterly super sale, you will be expected to handle over 150 reservations per second and manage search traffic exceeding 800 queries. The volume of this traffic is anticipated to increase in the future, making the development and operation of systems capable of handling high loads a critical responsibility.

Working in this company offers abundant opportunities for technical challenges and growth, leading to potential career advancement in an attractive position.

Position Details
In this position, you will primarily be responsible for the development and operation of the API services. Specifically, you will engage in backend system development using Java and Spring, covering a wide range of tasks from architecture consideration and system design to responding to user inquiries. Collaboration with related teams and handling large-scale traffic will also be required. This role offers the opportunity to refine your technical skills while working collaboratively with the team to achieve results. As a backend engineer in this position, you are expected to become a role model for the next generation of engineers and lead the organization's growth.

Work Environment
Development
Java, Spring Framework, Spring Boot, Spring Data, Spring Cloud Config, JUnit, Apache Maven, IntelliJ IDEA

Middleware
Oracle Database, Oracle GoldenGate for Big Data, MongoDB, Redis, Elasticsearch, Kafka, RabbitMQ, Kong, Nginx, Tomcat

Infrastructure
Private cloud

Monitoring
Jennifer (APM), New Relic (APM), ELK stack (Elasticsearch, Logstash, Kibana), Prometheus, Grafana, Oracle Enterprise Manager, MongoDB Ops Manager, PagerDuty

Ci/Cd
Jenkins, SonarQube, Ansible

Others
Microsoft Teams, Confluence, JIRA, BitBucket, etc.

Mandatory Qualifications
Technical Skills / Experiences

‐ Over 6 years of experience in designing, developing, and operating large-scale Web APIs on Linux servers using Java and Spring Framework.

‐ Experience in table design / query creation for efficient utilization of RDBMS like Oracle Database and NoSQL databases like MongoDB/Redis, as well as experience with ElasticSearch.

‐ Experience with distributed development using GitHub/Bitbucket or similar version control systems and Pull Requests

Soft Skills / Experiences

• Proactively involves others in order to solve problems or improve the situation
• Having inquiring mind for various issues/items.
• Having passion to learn continuously in a fast-moving environment.
• Must be able to communicate effectively with various stakeholders
• Willing to tackle new challenges and drive improvements, NOT satisfied with the status quo and routine work.
• A good team-worker. Promote team-working culture within and outside of the team.

Desired Qualifications
Technical Skills

• Experience in developing and operating messaging services such as Kafka and MQ.
• Experience in operating high-traffic services, including performance tuning and access control.

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Languages
English (Overall - 4 - Fluent)