Job title: Senior Software Engineer - (RC)
Job type: Permanent
Emp type: Full-time
Industry: IT & Telecommunications / IT・通信
Functional Expertise: Technical (IT) / 技術職(IT)
Salary: Negotiable
Location: Tokyo, Japan
Job published: 2025-08-29
Job ID: 64786

Job Description

Excellent Opportunity: Senior Software Engineer - Leading E-Commerce Company in Japan!

 

 

■ Senior Software Engineer

 

 

■ Company Overview

An e-commerce, fintech, digital content and communications company with more than 30,000 employees, and operations in 30 countries and regions.

 

 

■ Your Role and Responsibilities 

We are seeking a highly skilled and dynamic full-stack engineer with extensive technical expertise and proven team leadership experience to take ownership of technical responsibilities throughout the entire product development lifecycle. 

Position Details
Project Execution
• Design and implement scalable and efficient features
• Perform unit testing, verification, and validation to ensure robust functionality
• Monitor systems post-release, perform regular maintenance, and address any issues proactively

Collaboration
• Work closely with engineers, product managers, project managers, and cross-functional business teams to design and develop exceptional features
• Collaborate with a separate QA team and DevOps team
• Collaborate with cross-culture, cross-border development team during the project execution

Always Improve, Always Advance
• Develop a deep understanding of the entire product and system to identify and recommend technical enhancements
• Anticipate future business and product requirements, proactively suggesting system improvements to stay ahead of evolving needs

Mentoring
• Mentor junior developers, freshers, and interns, providing guidance and support to help them excel

 

■ Experience and Qualifications

• A minimum of 7+ years of hands-on experience as a Software Engineer in software development
• Extensive hands-on experience in designing and developing large-scale web applications using technologies such as Java, Spring, MariaDB, MongoDB, Kafka, and React.js
• Comprehensive, hands-on experience with Agile development methodologies and Scrum practices
• Strong "get-things-done" mindset paired with a sense of ownership and accountability

Technical
• Java spring (boot+batch)
• HTML, CSS, JavaScript
• MySQL/MariaDB
• NoSQL (MongoDB)
• Big Data (Hadoop, Hive, Spark)
• Version Control - Git
• Jira or similar project and task management tool

 

■ Additional Preferred Qualifications

• React, Angular
• NoSQL (Couchbase, Cassandra, Redis)
• Big Data (Tez, Presto)
• Test Automation - JUnit
• Code Quality - Sonar
• Streaming platform - Kafka, RabitMQ
• CI/CD - Jenkins
• BI Tool - MicroStrategy, Tableau
• Experience with enterprise system architecture design such as data pipeline design
• Domain knowledge of advertisement system architecture and KPIs

 

■ Work Location

Tokyo, Japan

 

 

 

Details will be provided during the meeting.