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Mainframe Developer

Zettalogix INCTrenton, NJ🇺🇸United StatesPosted 13 Aug 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job: Mainframe Developer Contract Start & End Date: ASAP - 6/30/2027 (will be extended) Onsite or remote: Hybrid Role (2 days Onsite, 3 days Remote) Worksite address: Trenton, NJ 08625
Cobol, CICS, testing, debugging, IBS OS/JCL, DB2, IDMS to DB2, Experience with Information Builders FOCUS

Job Description
We are looking for a Mainframe Developer to support the design, development, testing, maintenance, and production support of critical applications. This position will be a contract and hybrid, requiring candidates to work onsite two days per week.

What You ll Do
Analyze business and system requirements and translate them into technical solutions
Develop and modify mainframe applications using COBOL, CICS, DB2, and JCL
Perform coding, component testing, assembly testing, debugging, and production support activities
Develop and maintain program specifications and technical documentation
Conduct unit testing and participate in system and user acceptance testing
Collaborate with business users and technical teams to ensure successful implementation of solutions
Support maintenance and enhancement efforts for existing applications
Participate in database conversion and modernization efforts as needed
Work under the direction of the Information Technology Office Project Manager or designated representative

What You'll Need

Required:
Bachelor's degree or equivalent technical study
5+ years of overall IT and application development experience
5+ years of hands-on COBOL coding, testing, and debugging experience
5+ years of IBM OS/JCL (MVS) experience
5+ years of CICS development, testing, and debugging experience
5+ years of IBM DB2 development, testing, and debugging experience
5+ years of experience developing technical and user documentation
5+ years of experience performing usability testing and participating in system testing with end users
5+ years of experience developing and supporting stored procedures
Excellent verbal and written communication skills with the ability to collaborate effectively with technical and non-technical stakeholders
Ability to work independently and within cross-functional teams in a fast-paced environment

Preferred:
5+ years of IDMS to DB2 conversion experience
5+ years of IDMS/DC to CICS conversion experience
Experience with Information Builders FOCUS
Experience supporting large-scale government or judicial systems

Skills

Assembly
COBOL

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