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求人ID : 1602734 更新日 : 2026年07月16日
Scalable Payment API Engineer (Java)

Build Scalable Payment APIs | Java Engineer (Mid)

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 high-impact engineering team building secure, scalable payment APIs used across a global digital ecosystem. You will contribute end-to-end across design, development, and operation of Java-based microservices in a fast-paced, collaborative environment.

Client Details

Our client is a large, globally recognized technology and internet services group operating a diverse digital ecosystem. Their platform division builds and runs the core infrastructure and payment systems that power multiple high-traffic services worldwide.

Description

  • Design, develop, test, and deploy Java-based payment applications and RESTful APIs
  • Contribute to scalable and secure microservices architecture
  • Collaborate with engineers, product managers, and stakeholders to meet business needs
  • Participate across the full SDLC, from requirements to production support
  • Identify performance bottlenecks and improve system reliability and scalability
  • Integrate third-party services and ensure secure data exchange
  • Maintain and create technical documentation
  • Conduct code reviews and follow best practices (Git, Agile, design patterns)
  • Apply performance tuning and optimization techniques
  • Continuously evaluate new tools, technologies, and engineering practices

Job Offer

  • Opportunity to work on high-scale, real-world payment systems
  • Collaborative, international engineering environment
  • Exposure to modern microservices and cloud-native architectures
  • Strong focus on security, performance, and best practices
  • Career development within a large, tech-driven organization

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 流暢
日本語レベル 基礎会話レベル
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

  • Experience as a Software Engineer with strong Java and SQL skills
  • Hands-on experience with Spring Boot and Spring Framework
  • Front-end fundamentals (HTML, CSS, JavaScript) for full-stack contribution
  • Experience designing and developing RESTful APIs
  • Knowledge of microservices architecture and best practices
  • Understanding of secure coding and application security principles
  • Experience with version control (Git) and Agile methodologies
  • Familiarity with performance optimization and scalability techniques
Preferred Skills
  • Exposure to AI prompt engineering or AI-assisted coding tools
  • Experience with cloud platforms (e.g., AWS)
  • Knowledge of Docker, Kubernetes, and container orchestration
  • Familiarity with distributed tracing and monitoring tools
  • Experience in e-commerce platforms or high-traffic systems
  • Testing experience (unit, integration, performance)
  • Open-source contributions or technical community involvement

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