Mainframe Developer Consultant or Senior Consultant
Posted : 2026-10-22
Industry : Telecommunications
Employment Type : Full Time, Permanent
Required Skills : IBM Mainframe, COBOL, Assembler, System development, Unit testing, Defect investigation, Problem-solving, Collaboration, Project progress reporting, Deliverables creation, Development standards adherence, Quality criteria adherence, Offshore team collaboration
City : Minato-ku, Sapporo
State : Tokyo, Chuo-ku
Country : Japan
Annual Salary : ￥7,500,000 ~ ￥15,000,000
Job Description
Appealing Points
- Be involved in the development of large-scale enterprise systems
- Gain experience in system development for the life insurance industry
- Drive projects forward while collaborating with a global team
Annual Salary: 7.5 Million Yen and above
Job Description
To strengthen the team for projects in the life insurance industry, the company is seeking engineers with experience developing in an IBM Mainframe environment. In this IT development project for a life insurance company, you will be responsible for developing mainframe solutions, collaborating with stakeholders in both business and technical departments to deliver high-quality deliverables and support problem-solving.
Job Responsibilities
- System impact analysis
- Development using COBOL, Assembler, etc.
- Unit testing
- Defect investigation and correction during the testing phase
- Explanation and demonstration of deliverables
- Project progress reporting
- Creation of deliverables in accordance with development standards and quality criteria
Required Qualifications
- Approximately 3+ years of experience in system development using COBOL
- Experience developing in an IBM Mainframe (z/OS) or AS400 (IBM i) environment
- Experience in development from detailed design to testing
Preferred Qualifications
- Assembler development experience
- System development experience for the life insurance industry
- Experience collaborating with offshore teams
Language Required: Native level Japanese.
Company Description
This company is one of the largest IT consulting companies in Europe, with more than 200,000 employees based in locations in over 40 countries.
As a global leader in consulting, technology services and digital transformation, they were established in 2013 as a Japanese corporation of the world's leading IT consulting company at the forefront of innovation, and they offer a wide range of integrated services with the highest level of technology and abundant expertise.
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