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Lead Java Developer

https://www.randstad.com Logo

Randstad

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Location:
Japan , Tokyo

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Category:
IT - Software Development

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Contract Type:
Not provided

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Salary:

6000000.00 - 10000000.00 JPY / Year
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Job Responsibility:

  • Lead the design, development, and maintenance of complex applications using Java technologies
  • Design and supervise the implementation of scalable, high-quality, maintainable, and efficient features following industry best practices and coding standards
  • Conduct technical feasibility studies on upcoming features, then review and adjust roadmaps for products
  • Evaluate the latest technologies, frameworks, and tools, and apply them where needed
  • Define strategies and introduce new technology to enable the team to achieve company goals
  • Create and maintain technical architectural documentation
  • Be proactive in performing system improvements (e.g., refactoring, adopting appropriate technologies and system architecture)
  • Triage, investigate, and provide root cause analysis of issues that span across different platforms
  • Be a leader in the technologies used by your projects and a mentor to your team and/or outside of your team
  • Be an expert in the technology that our organization depends on, being able to provide overall architecture and collaborate with other architects
  • Handle technological watch to anticipate future trends and provide solutions that fit into the existing ecosystem
  • Contribute to the company's best practices and regulations

Requirements:

  • Bachelor's degree in computer science, a related technical discipline, or the equivalent experience
  • Over 10 years' experience in a Java development lead/architect role
  • Proficiency with Java and related frameworks such as Spring, Hibernate, and Java EE
  • Experience building CI/CD Pipelines and fully automating product release and testing
  • Excellent understanding of architecture patterns and the SOLID principles and IoC (DI)
  • Familiarity with OAuth 2.0/2.1, Open ID Connect, data protection, and OWASP threat models
  • Good understanding of Docker/Container technologies and their application in development and deployment processes
  • Good understanding of AWS/Cloud services and architecture
  • Track record of designing clean and robust APIs for libraries, frameworks, or SDKs used by other developers
  • Strong problem-solving skills to solve complex and uncertain situations
  • Excellent communication skills
What we offer:
  • 健康保険,厚生年金保険,雇用保険
  • 日曜日,土曜日,祝日

Additional Information:

Job Posted:
February 07, 2026

Expiration:
August 31, 2026

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