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As 400 Computer Operator Jobs in Washington, DC (NOW HIRING)

TekSynap

Senior Computer Operator

Fort Belvoir, VA

$52K - $57K/yr

Overview We are seeking a Senior Computer Operator to join our team supporting DLA Enterprise ... As part of the application process, you agree that TekSynap Corporation may retain and use your ...

TekSynap

Senior Computer Operator

Fort Belvoir, VA · On-site

$52K - $57K/yr

As part of the application process, you agree that TekSynap Corporation may retain and use your ... computer systems, and install, implement, maintain, and tune operating systems, disk, and tape ...

TekSynap

Senior Computer Operator

Fort Belvoir, VA · On-site

$52K - $57K/yr

Overview We are seeking a Senior Computer Operator to join our team supporting DLA Enterprise ... As part of the application process, you agree that TekSynap Corporation may retain and use your ...

TekSynap

Senior Computer Operator

Fort Belvoir, VA · On-site

$52K - $57K/yr

... computer systems, and install, implement,maintain, and tune operating systems, disk, and tape ... As part of the application process, you agree that TekSynap Corporation may retain and use your ...

Omm IT Solutions

Mainframe Computer Operator

Washington, DC · On-site

$55.25 - $71/hr

... Computer Operators to support high\-volume data center operations. The operators will be ... Operate and monitor high\-speed laser and impact printers as well as bursters in a mainframe data ...

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Showing results 21-40

All JobsAs 400 Computer Operator JobsAs 400 Computer Operator Jobs in Washington, DC

As 400 Computer Operator information

See Washington, DC salary details

$15

$27

$42

How much do as 400 computer operator jobs pay per hour?

As of Aug 21, 2026, the average hourly pay for as 400 computer operator in Washington, DC is $27.61, according to ZipRecruiter salary data. Most workers in this role earn between $21.49 and $31.06 per hour, depending on experience, location, and employer.

What is the difference between As 400 Computer Operator vs AS/400 System Administrator?

AspectAs 400 Computer OperatorAS/400 System Administrator
CredentialsTypically requires a high school diploma or equivalent; certifications like IBM Certified System Operator are commonRequires similar certifications plus additional skills in system management and networking
Work EnvironmentOperates on the AS/400 mainframe, monitoring system operationsManages, maintains, and configures the AS/400 system environment
Job ResponsibilitiesRuns scheduled jobs, monitors system performance, handles basic troubleshootingPerforms system setup, troubleshooting, security management, and performance tuning

While both roles work with the IBM AS/400 system, the As 400 Computer Operator primarily monitors and runs scheduled tasks, whereas the AS/400 System Administrator handles system management, configuration, and troubleshooting. The administrator role requires more technical expertise and responsibilities.

What are popular job titles related to As 400 Computer Operator jobs in Washington, DC?

For As 400 Computer Operator jobs in Washington, DC, the most frequently searched job titles are:

What job categories do people searching As 400 Computer Operator jobs in Washington, DC look for?

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As 400 Computer Operator jobs near you
Infographic showing various As 400 Computer Operator job openings in Washington, DC as of August 2026, with employment types broken down into 1% As Needed, 83% Full Time, 12% Part Time, 3% Contract, and 1% Nights. Highlights an 78% Physical, 2% Hybrid, and 20% Remote job distribution, with an average salary of $57,427 per year, or $27.6 per hour.

Mainframe Computer Operator

Omm IT Solutions

Washington, DC • On-site

Full-time

Re-posted 14 days ago

Job description


Please Note:-
  • 100% onsite
  • Location:-Onsite at US GPO Data Center, Washington, DC
  • Shift-based work:-
  • 1 Shift: 7:00 am to 3:30 pm
  • 2 Shift: 3:00 pm to11:30 pm

Description
Seeking diligent and detail-oriented Mainframe Computer Operators to support high-volume data center operations. The operators will be responsible for running and monitoring mainframe print operations, supporting job scheduling, and assisting Production Control staff to ensure timely and accurate completion of daily workloads.
Key Responsibilities
  • Operateand monitor high-speed laser and impact printers as well asbursters in a mainframe data center.
  • Performjob submission, scheduling, and tracking using JCL within TSO.
  • Loadand unload paper, toner, and developer; ensure proper supply management.
  • Remove,organize, and distribute print jobs to customers promptly.
  • Maintaina clean, safe, and organized printer area by disposing of empty boxes,toner containers, and loose paper.
  • Notifybaling room staff when recycle bins are full.
  • SupportProduction Control staff with routine operational tasks and shiftcoordination.
  • Adhereto all operational procedures under the supervision of the ProductionControl Lead and Data Center Manager.
  • Provideshift leadership while performing the same operational duties.

Requirements
Required Skills & Qualifications
  • 2-4 years in data center or mainframe operations, or strong relevant IT operations background.
  • TechnicalSkills:
    • Hands-onexperience with TSO/JCL job scheduling and monitoring.
    • Familiaritywith mainframe console operations.
    • Abilityto operate and maintain high-speed laser/impact printers and bursters.

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