Backend Engineer or Senior Backend Engineer in Java Spring Boot | Japan Jobs | Fidel Consulting KK

Backend Engineer or Senior Backend Engineer in Java Spring Boot

Job Id : 10827
Posted : 2026-10-06
Industry : Information Technology and Services
Employment Type : Full Time, Permanent
Required Skills : Digital transformation, Backend system development, Java, Spring Boot, Node.js, Microservices architecture, API development, API integration, Guidewire, Salesforce, REST APIs, SOAP APIs, Code review, Quality improvement, Root cause analysis, Bug fixes, Software development lifecycle, Batch processing, Control-M, JP1, System build, Deployment, Release, Oracle, MySQL, PostgreSQL, Customer coordination, Communication, Agile development, DevOps, CI/CD, OpenShift, Container technologies, GitHub, Jenk
City : Tokyo (Hybrid)
State : Tokyo (Hybrid)
Country : Japan
Annual Salary : ¥7,000,000 ~ ¥9,000,000

Job Description

Appealing Points

  • Take part in a large-scale digital transformation (DX) project for the global insurance industry, building backend systems that modernize core insurance operations through microservices architecture and API development
  • Gain hands-on experience in modern backend development with Java, Spring Boot and Node.js, and in integrating systems with industry-standard platforms such as Guidewire and Salesforce
  • Work in a global environment collaborating with teams in Japan and overseas, with career paths toward technical lead, solution architect, development manager or project manager

Annual Salary: 7 Million Yen and above 

Job Description

This role is responsible for backend system development using Java and Spring Boot for a global insurance industry digital transformation project. Through microservices architecture and API development, you will promote the digitalization and modernization of insurance operations, collaborating with members in Japan and overseas on large-scale system development.

The project is an application development and modernization initiative for a global insurance company. For the core systems of insurance operations, the team is promoting microservice development and API integration centered on Java and Spring Boot. You can also engage in enterprise system development using the latest technologies, including integration with industry-standard platforms such as Guidewire and Salesforce, and you will be involved consistently from design to release.

Job Responsibilities

  • Communicate and coordinate with customers, onsite teams and offshore teams
  • Participate in system design and architecture discussions
  • Design and develop backend systems and microservices using Java, Spring Boot and Node.js
  • Design, implement and maintain REST APIs and SOAP APIs
  • Conduct code reviews and promote quality improvement activities
  • Investigate faults, perform root cause analysis and implement bug fixes
  • Collaborate with frontend, data, QA and DevOps teams throughout the software development lifecycle
  • Support batch processing operations using tools such as Control-M and JP1
  • Perform system build, deployment and release activities

Required Qualifications

  • 3+ years of hands-on system development experience using Java and Spring Boot
  • Development experience using Oracle, MySQL or PostgreSQL databases
  • Experience coordinating and communicating with customers, onsite teams and offshore teams

Preferred Qualifications

  • Experience developing applications using Node.js
  • Experience with microservices architecture, as well as API design and implementation
  • Experience working in Agile development, DevOps or CI/CD environments
  • Hands-on experience with OpenShift, container technologies, GitHub, Jenkins or similar tools
  • Experience developing systems for the insurance or financial services industry
  • Experience with test automation using tools such as SoapUI and Postman

Language Required: Fluent level Japanese (JLPT N1 and above) and Business level English.

Company Description:

The group is a global enterprise headquartered in India. The group operates in more than 100 countries across six continents with a mission 'To improve the quality of life of the communities we serve globally, through long-term stakeholder value creation based on Leadership with Trust'​.

Sixty-six percent of the equity of  Sons, the promoter holding company, is held by philanthropic trusts, thereby returning wealth to society. The name has been respected in India for 150 years for its adherence to strong values and business ethics.

The companies of the group employ the best and finest, strengthened by a culture of ethics and integrity. Today we stand strong at 702,454 employees.


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