Top 9 Mainframe Operator Jobs

Data Center Mainframe Operator
Na Ali'i Consulting & Sales, LLC. —Fort Knox, KY
- $67,160 - $100,280 a year
- Weekends as needed
- Mid-level
- Ability to sit for extended periods
- 2 years
Quick Apply
AS400 Operator
Sid Harvey Industries I —Garden City, NY
- $85,000 - $95,000 a year
- Weekends as needed
- Mid-level
- Office
- Windows
- Profit sharing
- Paid holidays
Computer Operator, (SG-10), Computer Operator Trainee (SG-08) Item# 08216
State of New York - State Comptroller, Office of the —Troy, NY
- $40,391 - $55,322 a year
- Weekends as needed
- Background check
- Customer service
- High school diploma or GED
- Paid holidays
- Health insurance
8d
System Administrator II - Information Technology Department
Dade County Federal Credit Union —Doral, FL
- From $35 an hour
- Full-time
- Computer science
- Computer Science
- Research
Quick Apply
Data Center Operations Analyst
Western & Southern Financial Group —Fremont, MI
- Extended hours
- Microsoft Word
- Computer science
- Microsoft Excel
6d
Monitoring & Event Management (MEM) Team Lead
Peraton —Arlington, VA
- $112,000 - $179,000 a year
- On call
- Windows
- 8 years
- Supervising experience
- Health savings account
- Paid holidays
3d
Programmer Analyst II
PNM (PNMR) —Albuquerque, NM
- $73,060 - $120,548 a year
- Full-time
- Computer literacy
- Mid-level
- Office
7d

More jobs to discover

Find similar jobs that you might be interested in.

AS400 Operator
Sid Harvey Industries I —Garden City, NY
Create, assign, and follow up on IT help desk tickets, Respond to user requests via phone, email, or in person, Manage user accounts, password resets, and basic…
$85,000 - $95,000 a year
Production Supervisor
Cohere Beauty Omaha Inc —Omaha, NE
Provide manufacturing information by compiling, initiating, sorting, and analyzing production performance records and data, answering questions, and responding…
$70,000 - $75,000 a year
Quick Apply
8d

I want to receive the latest job alert for Mainframe Operator

By signing in to your account, you agree to SimplyHired's Terms of Service and consent to our Cookie and Privacy Policy.

Explore jobs in more locations

Mainframe Operator jobs near

Data Center Mainframe Operator

Na Ali'i Consulting & Sales, LLC. -
Fort Knox, KY

Quick Apply

Job Details

Full-time
$67,160 - $100,280 a year

Qualifications

Government information & network security
Mainframe

Full Job Description

Nakupuna Prime is looking for a Data Center Mainframe Operator to serve as part of the U.S. Army Human Resources Command (HRC) data center operations team, ensuring the availability, integrity, and security of enterprise mainframe computing resources. This role supports mission‑critical systems used for personnel, logistics, warfighter readiness, and command‑and‑control functions.

This position is designated as a floater, meaning the operator will primarily work the 1100–1900 shift but must be able to flex across all shifts (1st, 2nd, and 3rd) to maintain 24x7 coverage. Reliability, adaptability, and strict adherence to DoD standards are essential.

The following reflects management’s definition of essential functions for this job but does not restrict the tasks that may be assigned.

Operate mainframe systems in a secure DoD environment, ensuring continuous system availability.
Monitor system consoles, JES queues, and automated operations tools to maintain stable production processing.
Execute batch job scheduling, restarts, reruns, and failure resolution following approved JCL and operational procedures.
Perform IPLs, system startups, shutdowns, and recovery actions in accordance with TMs, SOPs, and established protocols.
Manage DASD, tape libraries, printers, and other peripheral devices.
Respond to system alerts and incidents; perform first‑level troubleshooting and escalate per incident management procedures.
Maintain accurate logs, shift documentation, and audit‑ready records supporting cybersecurity and configuration management requirements.
Support COOP and Disaster Recovery exercises and real‑world events.
Enforce access controls, data handling rules, and OPSEC/IA requirements.
Coordinate with government, military, and contractor personnel to ensure mission success.

Skills/Qualifications:

Must pass initial and recurring background investigations.
Must comply with all DoD physical security, cybersecurity, and OPSEC requirements.
2+ years of hands‑on experience operating enterprise mainframe systems in a production environment.
Equivalent education or certifications may be considered in place of experience.
Familiarity with batch scheduling tools and mainframe operational workflows.
Experience supporting DoD, classified, or highly regulated environments.
Ability to work rotating shifts, including nights, weekends, and holidays when mission needs require.

Preferred Qualifications

Prior experience supporting DoD, DISA, or service‑specific environments (Army, Navy, Air Force, Space Force).
Knowledge of ITIL‑based incident, problem, and change management processes.
Experience with mainframe automation, monitoring, and console management tools.
Familiarity with DoD RMF processes and cybersecurity controls.

Clearance Requirements: This position requires a current Secret clearance. Must be a U.S. Citizen.

Physical Requirements: The ideal candidate must at a minimum be able to meet the following physical requirements of the job with or without a reasonable accommodation:

Ability to perform repetitive motions with the hands, wrists, and fingers.
Ability to engage in and follow audible communications in emergency situations.
Ability to sit for prolonged periods at a desk and working on a computer.

Quick Apply

Refine Your Search

Mainframe Operator jobs

Data Center Mainframe Operator

AS400 Operator

Computer Operator, (SG-10), Computer Operator Trainee (SG-08) Item# 08216

System Administrator II - Information Technology Department

Data Center Operations Analyst

Monitoring & Event Management (MEM) Team Lead

Programmer Analyst II

More jobs to discover

I want to receive the latest job alert for Mainframe Operator

Explore jobs in more locations

Job Seeker Tools

Employer Tools

Browse

Stay Connected