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Senior Java Engineer-Design Lead, Payment Gateway

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 global-scale payment platform team as a senior, hands-on engineer who leads basic design and delivers production-grade Java services end-to-end. You'll bridge architectural intent and day-to-day implementation, raising engineering quality through clear guidelines, strong reviews, and practical mentorship.
  • Lead core payment design decisions in a high-traffic fintech platform
  • Hands-on role shaping quality, standards, and secure engineering practices

企業情報

Our client is a large, well-established digital commerce and fintech ecosystem company operating at global scale. Its payment platform supports transaction-critical services with a strong emphasis on security, reliability, and compliance across multiple business lines.

職務内容

Design & Development

  • Lead basic design for new features and external paymentserviceintegrations (PSP), including:
    • Software architecture and component design
    • Database schema design and data flow decisions
  • Define, maintain, and continuously improve design guidelines and coding standards
  • Build, test, and deploy production-grade Java applications across the full SDLC

Review & Quality Improvement

  • Review system designs pre-implementation to identify structural risks early
  • Conduct code reviews with focus on correctness, maintainability, performance, and security
  • Provide clear, actionable feedback that explains the "why," enabling team learning
  • Turn recurring issues into documented guidelines to prevent repeat defects

Team Enablement

  • Support engineers and team leads by aligning design intent with implementation reality
  • Act as a bridge between senior stakeholders and engineers to reduce friction and increase consistency
  • Raise the overall engineering bar through hands-on guidance, exemplars, and pragmatic standards

理想の人材

  • 8+ years of professional Java development experience
  • Proven delivery of production systems in high-traffic, transaction-critical environments
  • Strong ability to independently lead basic design (architecture, components, DB schema)
  • Solid experience running effective code reviews and enforcing coding standards across teams
  • Ability to ramp up quickly on unfamiliar codebases and assess structure, risks, and refactoring needs

Preferred

  • Experience with payment gateways, financial integrations, or other regulated transaction systems
  • Strong working knowledge of Spring (MVC/Boot), MyBatis, JUnit and/or Mockito
  • Familiarity with CI/CD and DevOps tooling (e.g., Jenkins, Git, Gradle)
  • Experience working in Agile/Scrum environments
  • Cloud exposure (AWS preferred)
  • Japanese is a plus, but not required

条件・待遇

  • Opportunity to own design leadership for a security-focused payment platform
  • A role combining hands-on delivery with real influence on engineering standards and quality
  • Hours: 9:00-17:30 (break 12:00-13:00)



コンタクト
Serena Wu
求人番号
JN-052026-7019927
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-052026-7019927
企業タイプ
外資系企業

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