Job Description

Career Opportunity for a Back-end Engineer in Japan!

■ Job Title

Back- End Engineer

■ Company Overview

 A leading Japanese e-commerce and internet services company, founded in 1997, operates one of the country’s largest online marketplaces, connecting millions of merchants and consumers. Beyond online retail, it has expanded into diverse sectors including fintech, digital content, telecommunications, and professional sports. Its ecosystem integrates shopping, payments, banking, credit cards, mobile services, and loyalty programs through a shared rewards system, creating a seamless experience across its platforms. Headquartered in Tokyo, the company has also grown globally, offering services in multiple regions and investing in innovation, AI, and cloud technologies to strengthen its digital infrastructure.  

■ Your Role and Responsibilities 

● 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 

■ Desired Qualifications

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

■ Additional Preferred Qualifications

● 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. 

■ Work Location

Tokyo (Hybrid)

 

■ Salary 

To be decided based on your experience, skill set, and company policies.
Details will be shared during the interview process.

Details will be provided during the meeting.