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Senior Mainframe Developer

Company:
Crescens
Location:
Ewing, NJ, 08628
Posted:
December 20, 2025
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Description:

Job title: Senior Mainframe Developer

Location: Trenton, NJ (Hybrid)

Duration: 6+ months

Note:

4-year college degree or equivalent technical study

In-Person Interviews Only - No exceptions Short description

Contractor will be responsible for analysis, design, coding, component & assembly testing of all application code owned by the Application Team.

Job description:

Contractor will be required to collaborate and provide technical expertise to the client to develop a technical solution to implement business/system requirements. All contractor personnel will be under the direct supervision of a Project Manager for the client.

The Mainframe consultant will develop and/or receive program specification requirements. These specifications will describe the coding to be done. Contractor will be required to deliver new or modified programs, successfully unit test their work, develop supportive documentation, and participate with the users in the system testing of their programs. Experience with database conversions is desired and helpful.

Qualifications and Skills:

Hands-on experience in coding, testing and debugging programs written in COBOL/CICS/DB2.

Experience with IBM OS/JCL (MVS) and IBM/DB2.

Experience with CICS

Experience in conversions for IDMS/DC to CICS, IDMS to DB2.

Experience in Usability Testing (participate with the users in the system testing of programs)

The ideal candidate can:

The consultant must have the ability to clearly and effectively communicate both written and oral with technical and non-technical personnel.

Responsibilities:

ttain a complete understanding of the Civil Case Management system and additional Judiciary applications in order to develop from the business/system requirements.

Develop and/or receive program specification requirements.

Contractor will be required to deliver new or modified programs.

Successfully unit test their work and system testing of programs with users.

Develop supportive documentation.

Required Skills:

COBOL Coding, testing & Debugging

IBM OS/JCL (MVS)

CICS application development and support

IBM/DB2 including Coding, testing & debugging

Developing supportive technical documentation

Experience in Usability Testing (participate with the users in the system testing of their programs)

Excellent verbal and written communication skills with the ability to collaborate with internal and external groups

Stored Procedures

Overall technical and IT experience 5 plus years

4-year college degree or equivalent technical study

Experience in IDMS/DC to CICS conversion

Experience in IDMS to DB2 conversion

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