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Back End Developer

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Onsite

Back End Developer

Huxley

Back End Developer

Skills

SQL QueriesJavaMicroservicesSpring BootPostgreSQLMySQLAWSLinuxOracle

1 month ago

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Important information


Contract type:

Freelance / Contract

Location:

Tokyo, Japan

Work mode:

Onsite

Published on:

24 September 2026

What they need


About the Role

We are seeking a skilled Backend Java Developer to design, develop, and maintain scalable backend systems that support high-traffic enterprise applications. You will collaborate closely with product managers, frontend developers, and cross-functional teams to deliver reliable and high-performance solutions.

Responsibilities

  • Design, develop, and maintain backend applications using Java and Spring Boot.
  • Build and consume RESTful APIs and microservices.
  • Optimize application performance, scalability, and reliability.
  • Troubleshoot production issues and perform root cause analysis.
  • Write clean, maintainable, and well-tested code.
  • Participate in code reviews and technical discussions.
  • Work closely with DevOps teams to support CI/CD pipelines.
  • Collaborate with stakeholders to understand business requirements and translate them into technical solutions.

Required Qualifications

  • 3+ years of experience in backend development with Java.
  • Strong experience with Spring Framework / Spring Boot.
  • Experience developing REST APIs and microservices.
  • Solid knowledge of SQL and relational databases such as MySQL, PostgreSQL, or Oracle.
  • Familiarity with Linux/Unix environments.
  • Experience with Git and modern software development practices.
  • Strong debugging and problem-solving skills.
  • Excellent communication and teamwork skills.

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