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Computer Operator Mainframe Jobs (NOW HIRING)

Katmai

Computer Operator I

Oceanside, CA · On-site

$27.04/hr

SUMMARY Monitors and operates the control console of either a mainframe digital computer or a group of minicomputers, in accordance with operating instructions, to process data. ESSENTIAL DUTIES ...

Triunity Software, Inc.

Mainframe Developer

Dallas, TX · On-site

$90 - $130/hr

Proficiency in COBOL, JCL, CICS, and z/OS operating systems * Experience with IBM mainframe tools ... Bachelor's degree in Computer Science, Information Technology, or a related field preferred #J ...

InterSources Inc

Mainframe Admin

Poughkeepsie, NY · On-site

... OS operating system. This role ensures high availability, security, and performance of the ... Required : • Bachelor's degree in Computer Science, Information Systems, or related field, or ...

Syntricate Technologies

Mainframe Z/OS

Columbus, OH · On-site

$47.25 - $60.75/hr

Required : • Deep understanding of the z/OS operating system. • Proficient in Job Control ... Preferred : • Bachelors degree in computer science or related field • 3+ years of experience in ...

Sonsoft Inc

MAINFRAME COBOL PROGRAMMER

Grand Rapids, MI · On-site

$47 - $60.50/hr

Consult with and assist computer operators or system analysts to define and resolve problems in ... Mainframe Developer AM6 Performing code analysis, designing, code build, unit testing and some ...

The AES Group

Mainframe Storage SME

New York, NY · Remote

Candidate should possess working knowledge of Z/OS Operating System, z/OS(MVS) fundamentals ... Bachelor's degree in computer science or a related field. * Provides technical support activities ...

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Computer Operator Mainframe information

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How much do computer operator mainframe jobs pay per hour?

As of Sep 3, 2026, the average hourly pay for computer operator mainframe in the United States is $24.38, according to ZipRecruiter salary data. Most workers in this role earn between $18.99 and $27.40 per hour, depending on experience, location, and employer.

What is a computer operator mainframe?

A Computer Operator Mainframe is responsible for monitoring, managing, and troubleshooting mainframe computer systems. They ensure that batch jobs run correctly, system backups are performed, and any errors or failures are addressed promptly. Operators use specialized software and tools to oversee system performance and maintain uptime. This role often requires working in shifts to provide 24/7 operational support. Strong attention to detail and problem-solving skills are essential in this position.

What does a computer operator mainframe do?

A typical shift for a Computer Operator Mainframe involves monitoring mainframe systems, running scheduled and ad-hoc jobs, and troubleshooting any system alerts or errors that occur during operations. Operators are responsible for ensuring jobs are completed successfully, performing regular system health checks, and escalating issues to system administrators or other technical teams if needed. The work environment is usually structured in shifts to provide 24/7 coverage, with operators collaborating closely with both technical and business teams to ensure critical applications remain available. You can expect a mix of routine monitoring, responding to incidents, and documenting system activity, which makes attention to detail and clear communication especially important for success in this role.

What are the key skills and qualifications needed to thrive in the computer operator mainframe position?

To thrive as a Computer Operator Mainframe, you need a solid understanding of mainframe operations, batch processing, job scheduling, and system monitoring, often supported by a degree in computer science or a related field. Familiarity with operating systems like IBM z/OS, tools such as JCL, TSO/ISPF, and knowledge of automation software or mainframe consoles is essential. Strong attention to detail, problem-solving ability, and effective communication skills help operators stand out in this role. These skills ensure smooth system operations, quick resolution of technical issues, and clear collaboration with IT teams, minimizing downtime and maintaining high system reliability.

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Computer Operator Mainframe jobs near you
Infographic showing various Computer Operator Mainframe job openings in the United States as of August 2026, with employment types broken down into 43% Full Time, 2% Temporary, and 55% Contract. Highlights an 85% In-person, 2% Hybrid, and 13% Remote job distribution, with an average salary of $50,704 per year, or $24.4 per hour.

Computer Operator III _ Part Time

Facility Services Management Inc.

Fort Detrick, MD • On-site

$37.53/hr

Part-time

Posted 6 days ago

Job description

Job Summary
The Computer Operator monitors and operates the control console of either a mainframe digital computer or a group of minicomputers, in accordance with operating instructions, to process data. Utilizes the Building Automation Systems to ensure proper operation of facility systems related to the energy management systems. Performs work in accordance with the organization’s policies and applicable laws.
Responsibilities include the following. Other duties may be assigned.
  • Successfully complete education and training when directed by the CMM.
  • Assists in monitoring the Building Automation System s 24/7, 365 days a year.
  • Prior to manning the BAS, independently demonstrate proficiency in monitoring the BAS as detailed in SOP.
  • Assist with all communication facilities to include; emergency radio communications, two-way radios, e-mails, office phones and work order requests.
  • Acknowledge and document weekly Emergency Eyewash and Safety Showers Alarm testing
  • Operate the BAS IAW published Standard Operating Procedures (SOP)
  • Provide highly detailed shift log documentation and notes
  • Review and record animal room temperatures and humidity readings bi- hourly, log/report any deficiencies
  • Maintain hourly rotating walking tours of buildings as specified by the contract and log/report any deficiencies
  • Maintain Suite Pressure logs and log/report any deficiencies
  • Maintain drain fluid levels weekly in the 1412/1425 penthouse and basement.
  • Maintain weekly HEPA filter housing DP logs and log/report and deficiencies.
  • Make requested adjustments to animal room temperature set points and alarms
  • Update Freezer Call list
  • Respond to alarms and equipment failures as detailed in the alarm message to include; contacting the end user/ POCs, on call duty personal, security office, 911 operator or FMO supervisors for additional guidance.
  • Respond to facilities emergencies (ex. bomb threats, fire alarms, system failures, water issues) as detailed in the Facilities Emergency flip book
  • Follow all policies and regulations pertaining to building security, BAS passwords and system protection
  • Maintain mandatory/assigned training requirements. Certificates to remain in individual training record
  • Maintain GLP training upon implementation
  • Follow all related published SOP's including but not limited to reporting data and change control procedures
  • Update resumes annually
  • Relocate refrigeration equipment during after hour failures.
  • Respond to alarms generated from Good Laboratory Practice(GLP)/Regulated areas IAW published standard operating procedures
Qualifications
  • Associate’s degree (A.A.) or equivalent from two-year college or technical school; or six months
  • to one-year related experience and/or training; or equivalent combination of education and experience.
  • Valid state-issued driver’s license with acceptable driving record.
  • U.S. Citizenship required.
  • Ability to pass government-mandated background checks and drug screenings.

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