Senior Mainframe Operations

About the role

The Senior Mainframe Operations Developer III role provides advanced operational support, technical guidance, and mentorship to Junior Resources. Senior Resources are responsible for stability, incident leadership, and operational excellence within the mainframe environment. The role supports 24x7 production operations and follows established procedures to detect, escalate, and resolve system issues in accordance with operational and security standards.

Responsibilities

• Lead monitoring and control of mainframe production environments.
• Perform advanced operational tasks, including complex job recovery, system coordination, and troubleshooting.
• Serve as the primary escalation point for incidents, outages, and operational exceptions.
• Guide, coach, and mentor Junior Mainframe Operations Resources during training and on the job activities.
• Cookordinate with system programmers, application teams, and infrastructure teams during incidents and changes.
• Support change management, releases, maintenance windows, and disaster recovery activities.
• Review and improve runbooks, procedures, and operational documentation.

Requirements

• 4–5 years of experience supporting mainframe production operations.
• Proven ability to ensure system stability, availability, and compliance with operational and security standards.
• Demonstrated leadership during high-severity incidents, including coordination, escalation, and resolution.
• Strong focus on operational excellence, knowledge sharing, and continuous improvement of support processes.

Qualifications

• Proven experience in mainframe operations.
• Knowledge of IBM Z/OS architecture and batch processing.
• Experience with JCL testing and performance tuning.
• Experience with incident management and disaster recovery.

Skills

• Mainframe operations.
• IBM Z/OS architecture and batch processing.
• JCL testing and performance tuning.
• Incident management.
• Disaster recovery.

Benefits

• Minimum 10 days of paid vacation per year.
• 6 days of paid sick leave each year (pro-rated for new hires).
• 10 paid holidays.
• Paid bereavement leave and jury duty.
• Participation in the Company’s 401(k) Retirement Plan with employer matching.
• Medical, dental, and vision insurance.
• Accidental death and disability insurance.
• Short- and long-term disability benefits.
• Health Savings Account (HSA) and Flexible Spending Account (FSA).

Pay

Compensation can differ depending on factors including but not limited to the specific office location, role, skill set, education, and level of experience. UST provides a reasonable range of compensation for roles that may be hired in various U.S. markets as set forth below.

Schedule

Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty.