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Senior Java Engineer (Lead) - Business Japanese Required

東京23区 派遣社員 年収 600万円 - 800万円 外資系企業 求人詳細を見る
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.
  • Drive core systems for a major e-commerce platform
  • Lead design and modernization in a high-impact team

企業情報

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.

職務内容

  • 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



理想の人材

  • 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

条件・待遇

  • 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



コンタクト
Serena Wu
求人番号
JN-062026-7029417
電話
+81 3 6627 6137

求人情報

分野
IT
職種
プログラミング＆開発
業界
IT・通信
勤務地
東京23区
雇用形態
派遣社員
担当コンサルタント
Serena Wu
担当コンサルタントの電話番号
+81 3 6627 6137
求人番号
JN-062026-7029417
企業タイプ
外資系企業

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