Mainframe Developer

Machine Learning Technologies, LLC; Jersey City (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Machine Learning Technologies, LLC is seeking an experienced Mainframe Developer in Jersey City, NJ. The role requires 10+ years of hands-on COBOL, IMS/DB, IMS/DC, and CICS expertise within a banking environment. Strong IBM z/OS knowledge and batch processing skills are essential.

Onsite 5 days a week in Jersey City, you will develop, maintain, and support enterprise mainframe applications, ensuring reliability, performance, and data integrity across critical systems.

Qualifications

• 10+ years of mainframe development experience.
• Strong proficiency in COBOL and IBM z/OS environments.
• Hands-on experience with IMS/DB, IMS/DC, CICS, and JCL.

Responsibilities

• Develop, maintain, and enhance mainframe applications using COBOL.
• Work with IMS databases (IMS/DB, IMS/DC) and CICS transaction processing.
• Write and maintain JCL scripts for batch processing.
• Troubleshoot issues in IBM z/OS environments and support data set management.
• Ensure reliability, performance, and data integrity of mainframe systems.
• Collaborate with development, testing, and production support teams.
• Follow established mainframe development standards and procedures.

Skills

Mainframe development

COBOL

IBM z/OS

IMS/DB

IMS/DC

CICS

JCL

Data security

Batch processing

Production support

Job description

Work Authorization

US Citizen, Green Card, OPT-EAD, CPT, H-1B, H4-EAD, Other

JOB SUMMARY

Seeking an experienced Mainframe Developer with 10+ years of hands-on experience in COBOL, IMS/DB, IMS/DC, and CICS. The ideal candidate will have strong expertise in IBM z/OS environments, batch processing, JCL, and mainframe transaction processing. The role requires the ability to develop, maintain, and support enterprise mainframe applications within a banking environment.

KEY RESPONSIBILITIES

• Develop, maintain, and enhance mainframe applications using COBOL.
• Work with IMS database technologies, including IMS/DB and IMS/DC.
• Develop and support CICS-based transaction processing applications.
• Write, execute, and maintain JCL scripts for batch processing.
• Work in IBM z/OS environments and troubleshoot application issues.
• Support mainframe data set management and basic system administration activities.
• Ensure application reliability, performance, and data integrity.
• Collaborate with development, testing, and production support teams.
• Follow established mainframe development standards and operational procedures.

REQUIRED SKILLS & EXPERIENCE

• 10+ years of mainframe development experience.
• Strong proficiency in COBOL programming.
• In-depth knowledge of IBM z/OS.
• Mandatory hands-on experience with IMS/DB.
• Experience with IMS/DC concepts and transaction processing.
• Strong knowledge of CICS functionalities and programming interfaces.
• Ability to write and manage JCL scripts for batch processing.
• Understanding of mainframe data set management and security.
• Must be available to work onsite five days a week in Jersey City, NJ.

PREFERRED SKILLS

• Experience supporting enterprise-scale mainframe applications.
• Knowledge of mainframe production support and troubleshooting.

GOOD TO HAVE

• Exposure to mainframe system administration.
• Experience working with large enterprise technology teams.
• Familiarity with mainframe application maintenance and performance optimization.

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.