Mainframe Developer IN Wilmington, DE & Jersey City, NJ (Weekly 5 days office is Must)

Position : Mainframe Developer

Location : Wilmington, DE & Jersey City, NJ (Weekly 5 days office is Must)

Duration : Contract

Skills : COBOL, JCL, CICS, IMS DB, VSAM

Key Responsibilities :

Design, code, test, and maintain mainframe applications using COBOL, JCL, DB2, IMS DB / DC, CICS, VSAM, and IBM MQ.

Develop and support batch and online processes, including job streams, transaction systems, and message-driven programs.

Analyze business requirements and translate them into technical specifications.

Participate in the full software development lifecycle (SDLC) including design, development, testing, deployment, and support.

Troubleshoot application issues and provide timely resolutions, including root cause analysis and corrective action planning.

Optimize mainframe code and database access for performance and scalability.

Work with system analysts, QA testers, and infrastructure teams to ensure system integrity and quality.

Maintain accurate and up-to-date documentation of technical designs, codebases, and processes.

Support production jobs and on-call troubleshooting as required.

Required Skills & Qualifications :

Bachelor's degree in Computer Science, Information Systems, or related field (or equivalent experience).

3 8 years of hands-on experience with the following mainframe technologies :

o COBOL (batch and online)

o JCL (Job Control Language)

o CICS (Customer Information Control System)

o DB2 and / or IMS DB

o VSAM (Virtual Storage Access Method)

o IMS DC (Transaction Management)

o IBM MQ (Message Queueing)

Familiarity with tools such as TSO / ISPF, File-AID, Abend-AID, and version control (e.g., Endevor or Changeman).

Strong analytical and debugging skills.

Ability to work independently and in a team environment.

Good communication skills for collaboration with business analysts and QA teams.

Preferred Qualifications :

Experience with mainframe modernization or integration with distributed / cloud systems.

Familiarity with DevOps practices or tools in the mainframe environment.

Exposure to agile delivery methodologies.

Experience in banking, insurance, or other high-volume transaction systems.