Mainframe Support Engineer - 24x7 Incident & Batch Ops

Compunnel, Inc.; Town of Florida (NY); On-site; USD 110,000 - 150,000; Full time

Job summary

A technology company in New York is seeking a Mainframe Support Engineer to manage critical mainframe environments. Responsibilities include incident resolution, system monitoring, and collaboration with development and operations teams. The ideal candidate will have a Bachelor's degree, over 3 years of mainframe support experience, and proficiency with JCL and COBOL. A willingness to participate in 24x7 on-call support is required.

Qualifications

• 3+ years of hands-on experience supporting mainframe platforms (z/OS).
• Willingness to participate in a 24x7 on-call support rotation.

Responsibilities

• Monitor daily batch schedules using Control-M and resolve scheduling failures.
• Triage and resolve production incidents in z/OS, CICS, and DB2 environments.
• Analyze system performance and capacity using SDSF and related tools.
• Execute JCL, manage datasets and tapes, and apply OS/Subsystem maintenance.
• Maintain and update run-books, SOPs, and support documentation.
• Collaborate with application teams to diagnose defects, implement workarounds, and coordinate fixes.
• Participate in on-call rotation for 24x7 support, including weekends and holidays.
• Conduct root-cause analysis and implement improvements to reduce repeat incidents.
• Work with security, audit, and compliance teams to enforce policies and complete health checks.
• Mentor junior support staff and contribute to knowledge-sharing sessions.

Skills

JCL

TSO/ISPF

REXX or CLIST scripting

COBOL

DB2 Stored Procedures

DB2 data management

SDSF

Git

Troubleshooting

Verbal and written communication

Education

Bachelor’s degree in Computer Science, Information Systems

Job description

A technology company in New York is seeking a Mainframe Support Engineer to manage critical mainframe environments. Responsibilities include incident resolution, system monitoring, and collaboration with development and operations teams. The ideal candidate will have a Bachelor's degree, over 3 years of mainframe support experience, and proficiency with JCL and COBOL. A willingness to participate in 24x7 on-call support is required.