Mainframe Developer

Northern Base; Jersey City (NJ); On-site; USD 110,000 - 150,000; Full time

Job summary

Northern Base is seeking a seasoned Mainframe Developer in Jersey City, NJ to design, build, and maintain critical COBOL/DB2/CICS/MQ-based applications. You will work on both online and batch processing, implement changes, perform testing, and ensure robust production support.

Strong debugging, analytical, and communication skills are essential for success. The role emphasizes performance tuning, MQ integrations, and collaboration with business analysts and QA teams in a financial services

Qualifications

• 5-7 years of mainframe app development and support.
• Hands-on COBOL LE, DB2, JCL, CICS, VSAM, Online/Batch.
• MQ with CICS/COBOL and Batch/COBOL experience.
• IBM MQ and IBM WBE background.
• DB2 development, SQL, and performance tuning.
• DB2 Stored Procedures a plus; File Manager and Debug Tool use.
• Knowledge of ENDEVOR, TMON, MainView, and governance practices.
• Strong analytical, troubleshooting and communication skills.
• Experience in Financial Services is desirable but not essential.

Responsibilities

• Design, develop, enhance, and maintain Mainframe apps with COBOL, DB2, JCL, CICS, VSAM, MQ.
• Develop and support online and batch processing.
• Implement changes following development standards; perform testing and deployment.
• Develop MQ-based integrations with CICS/COBOL and Batch/COBOL.
• Troubleshoot DB2, MQ, CICS issues; perform root cause analysis.
• Optimize performance using monitoring tools; collaborate with analysts and testers.
• Participate in code reviews, releases, and production support; maintain docs.

Skills

COBOL

DB2

JCL

CICS

MQ

VSAM

SQL

Performance tuning

Troubleshooting

Communication

Agile

Tools

ENDEVOR

TMON

MainView

IBM Debug Tool

File Manager

DB2 Stored Procedures

IBM MQ

Job description

Job Description

Skill: Mainframe Developer

Must Have Technical/Functional Skills:

• 5-7 years of experience in Mainframe application development and support.
• Strong hands-on experience in COBOL LE, DB2, JCL, CICS, VSAM, and Online/Batch programming.
• Experience developing and supporting applications using MQ with CICS/COBOL and Batch/COBOL.
• Strong background in IBM MQ and IBM WBE.
• Strong experience with DB2 development, SQL programming, and database performance tuning.
• Experience with DB2 Stored Procedures is a plus.
• Strong skills in using File Manager and IBM Debug Tool.
• Knowledge of change management tools such as ENDEVOR is desirable.
• Knowledge of CICS analysis and performance tools such as TMON is desirable.
• Knowledge of DB2 performance monitoring tools such as BMC MainView is desirable.
• Strong analytical, troubleshooting, debugging, and problem-solving skills.
• Excellent oral and written communication skills.
• Experience in the Financial Services sector is desirable but not essential.

Roles & Responsibilities:

• Design, develop, enhance, and maintain Mainframe applications using COBOL, DB2, JCL, CICS, VSAM, and MQ.
• Develop and support both online and batch processing applications.
• Implement application enhancements, fixes, and production changes following established development standards.
• Perform impact analysis, coding, unit testing, integration testing, and deployment activities.
• Develop and support MQ-based integrations using CICS/COBOL and Batch/COBOL.
• Troubleshoot and resolve application, DB2, MQ, and CICS-related issues.
• Perform root cause analysis and implement long-term solutions for production incidents.
• Optimize application and database performance using available monitoring and performance analysis tools.
• Work closely with business analysts, developers, testers, and support teams to deliver high-quality solutions.
• Participate in code reviews, testing, release management, and production support activities.
• Maintain technical documentation and ensure compliance with development standards and governance processes.
• Participate in Agile ceremonies and contribute to continuous improvement initiatives.