Mainframe Architect

๐Ÿข ReachExt K.K. ยท all 3 jobs
๐Ÿ“ Japan
๐Ÿ“… Posted Oct 2, 2026 ยท via Himalayas
๐Ÿท Mainframe Architecture, Legacy Modernization, Systems Migration, Mainframe Development, Technical Architecture, Mainframe Architect +3 more
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Mainframe Architect - Legacy Modernization
Employment Type Full-time
About this Job

The successful candidate will be responsible for providing expert technical support for COBOL85, JCL, Assembler, RDB, NDB, TreeDB, Symfoware, and other related technologies for mainframe to open environment migration projects.

Specifically, this will include the following tasks:

- Comprehensive evaluation of the current mainframe environment, including COBOL85 and JCL

- Develop procedures for migrating mainframe applications to an open environment.

- Provide technical support to the development team by identifying and addressing technical issues and providing solutions.

- Establish standards for TOBE system performance, security, usability, etc.

- Assist in the preparation of technical documentation for projects, such as architectural design documents.

We are looking for the following people to join our team:

Those who are looking for their next career utilizing their previous mainframe and project management experience.

Those who have experience in specific areas of legacy systems but would like to increase their market value by taking on the challenge of modernization.

If you are looking to work with clients to solve their legacy system challenges and want to use your experience to drive projects and architectures, then this is the job for you.
Who should apply?
Required Skills:

- Knowledge of mainframe environment including COBOL85, JCL, Assembler, RDB, NDB, TreeDB, Symfoware and other related technologies

- Experience migrating from mainframe to open environments

- Information analysis, problem solving and communication skills

Welcome Skills:

- Experience migrating from mainframe to open platforms through rewrite, rehosting, rebuild, etc.

- Experience in global projects and working with foreign companies and people

- Experience (or interest) in offshore development

- Technical knowledge of mainframe environment such as COBOL85, PL/I, RPG, JCL, Assembler, RDB, NDB, etc. of IBM, Fujitsu, Hitachi, Unisys, etc.

- Experience in program development, operation and maintenance in one of the mainframe environments such as IBM, Fujitsu, NEC, Hitachi, Unisys, etc.

Originally posted on Himalayas

Flights + hotels

This role requires you to be in Japan. If that means relocating or flying in, it is worth checking fares before you commit to a start date.

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