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求人ID : 1595359 更新日 : 2026年06月08日
Senior Java Lead - Business JP Required

Senior Java Engineer (Lead) - Business Japanese Required

勤務地 東京都 23区
雇用形態 派遣
給与 600万円 ~ 800万円

募集要項

Join a mission-critical platform team supporting order management systems used by millions of merchants. You will lead design, improvements, and operations while collaborating closely with internal stakeholders in Japan.

Client Details

Our client is a leading Japanese e-commerce platform operating at massive scale, supporting millions of merchants and transactions daily. They are known for highly reliable systems and continuous innovation in their digital marketplace infrastructure.

Description

  • Lead system design (basic to detailed) and development for web applications
  • Collaborate closely with internal teams to deliver high-quality solutions
  • Participate in a large-scale infrastructure migration project for existing systems
  • Improve and enhance existing applications, including feature additions
  • Handle system investigations, bug fixes, and production incident responses
  • Support full lifecycle delivery: design, development, testing, and release
  • Contribute to system quality improvements and user experience enhancements
  • Build scalable and maintainable web systems, including batch processing

Job Offer

  • Opportunity to lead critical systems in a top-tier e-commerce environment
  • Exposure to large-scale infrastructure migration and modernization
  • Collaborative, team-focused engineering culture
  • Long-term project stability with ongoing system improvements
  • Work on high-impact services used at national scale

To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.

応募必要条件

職務経験 無し
キャリアレベル 中途経験者レベル
英語レベル 日常会話レベル
日本語レベル 流暢
最終学歴 大学卒: 学士号
現在のビザ 日本での就労許可が必要です

スキル・資格

  • 5+ years of Java development for web applications and batch processing
  • Strong understanding of memory management (GC), thread safety, and exception handling best practices
  • Solid Oracle/SQL experience (3+ years), including complex queries, indexing, and execution plans
  • Ability to design with performance considerations in mind
  • Strong communication skills and ability to work collaboratively within a team
  • Hands-on experience across design, implementation, and unit testing
Preferred qualifications:
  • Experience with Spring Framework
  • Experience in cloud environments (AWS, GCP, etc.)
  • Experience with Kubernetes or containerized development
  • API design experience (REST/SOAP)
  • SQL performance tuning experience
  • Technical leadership experience (design direction, code reviews, problem-solving leadership)

Language Requirements
  • Japanese: Business level (required for daily collaboration)
  • English: Not required

勤務地

  • 東京都 23区

労働条件

雇用形態 派遣
給与 600万円 ~ 800万円
業種 ソフトウエア

職種