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Mainframe Operator Jobs in Baltimore, MD (NOW HIRING)

Anivas Tech LLC

Mainframe SRE

Kettering, MD · On-site

$48.50 - $62.50/hr

Document standard operating procedures, runbooks, and post-incident reviews * Participate in ... Experience with core mainframe subsystems including CICS, IMS, DB2, VSAM, and/or JES2/JES3

Creative G C

Mainframe z/OS System Programmer

Columbia, MD · Remote

$56.25 - $71.75/hr

As an US Citizen and as a Senior System Programmer (Mainframe) supporting IBM z15 and z16 mainframe and z/OS 2.5 or higher operating system. As part of IBM zCloud resource pool, supporting the zCloud ...

JS Consulting

Sr. Mainframe Developer

Woodlawn, MD · On-site

$51 - $65.50/hr

Job Title- Sr. Mainframe Developer Project Location - Woodlawn, MD (5 days per week onsite ... Evaluate the impact of new operating systems, or versions of COBOL and Endevor on programs.

System One

Database SME

Greenbelt, MD · Remote

... mainframe operating systems * Strong understanding of government security requirements * Excellent project management and organizational skills * Ability to manage multiple tasks and meet tight ...

System One

Database SME

Greenbelt, MD · Remote

... mainframe operating systems * Strong understanding of government security requirements * Excellent project management and organizational skills * Ability to manage multiple tasks and meet tight ...

System One

Database SME

Greenbelt, MD · Remote

... mainframe operating systems * Strong understanding of government security requirements * Excellent project management and organizational skills * Ability to manage multiple tasks and meet tight ...

System One

Database SME

Greenbelt, MD · Remote

... mainframe operating systems * Strong understanding of government security requirements * Excellent project management and organizational skills * Ability to manage multiple tasks and meet tight ...

OBXtek

Systems Programmer JCL z/OS DB2

Woodlawn, MD

Solid Financial Resources and low Employee Turnover (5%) * Develop, analyze and maintain JCL on the z/OS mainframe operating system. This is a daily/ongoing activity. * Deploy application code from ...

OBXtek

Systems Programmer JCL z/OS DB2

Woodlawn, MD · On-site

Solid Financial Resources and low Employee Turnover (5%) * Develop, analyze and maintain JCL on the z/OS mainframe operating system. This is a daily/ongoing activity. * Deploy application code from ...

kgs

Master Scheduling Coordinator

Baltimore, MD · On-site

$17.75 - $22.25/hr

Experience with PCs running the most current Windows platform, experience with MS Office suite of programs, and computer operations experience in a mainframe operating systems software environment ...

New

kgs

Master Scheduling Coordinator

Baltimore, MD

$17.75 - $22.25/hr

Experience with PCs running the most current Windows platform, experience with MS Office suite of programs, and computer operations experience in a mainframe operating systems software environment ...

New

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Mainframe Operator information

See Baltimore, MD salary details

$10

$53

$71

How much do mainframe operator jobs pay per hour?

As of Sep 12, 2026, the average hourly pay for mainframe operator in Baltimore, MD is $53.04, according to ZipRecruiter salary data. Most workers in this role earn between $46.83 and $60.19 per hour, depending on experience, location, and employer.

What is a mainframe operator?

A Mainframe Operator monitors and controls mainframe computer systems, ensuring they run efficiently and without issues. They oversee batch processing, troubleshoot system errors, manage job scheduling, and perform routine maintenance. Their role is critical in maintaining uptime and performance for large-scale business operations. They also collaborate with IT teams to address system failures and optimize processes.

What are the key skills and qualifications needed to thrive in the mainframe operator position, and why are they important?

To thrive as a Mainframe Operator, you need a solid understanding of mainframe systems operations, batch processing, and problem-solving, often supported by an associate degree in IT or related experience. Familiarity with operating systems such as z/OS, job scheduling tools like CA-7 or Control-M, and knowledge of system monitoring utilities are typical requirements, with relevant certifications like IBM Mainframe Operator being a plus. Strong attention to detail, adaptability under pressure, and effective communication help operators excel in coordinating tasks and responding to issues. These skills ensure smooth, reliable mainframe operations that are critical for supporting core business functions.

What does a typical work shift look like for a mainframe operator?

A typical work shift for a Mainframe Operator can involve monitoring system performance, executing scheduled jobs, troubleshooting unexpected errors, and resolving user-reported issues. Many organizations operate their mainframes 24/7, so you may be expected to work evening, night, or weekend shifts as part of a rotating team. Collaboration with network administrators, systems programmers, and technical support staff is common to ensure system reliability and quick issue resolution. Throughout your shift, you'll need to document incidents and maintain communication logs for seamless transitions between shifts. This environment requires reliability, alertness, and a proactive approach to keeping core business processes running smoothly.

Are mainframe operator jobs in demand?

Mainframe operator jobs are in steady demand in industries such as finance, government, and healthcare that rely on large-scale legacy systems. These roles require knowledge of mainframe environments, such as IBM z/OS, and often involve maintaining and troubleshooting critical data processing tasks. While automation has reduced some positions, experienced operators with skills in mainframe security and scripting remain valuable.

What does a mainframe operator do?

A mainframe operator manages and monitors large-scale computer systems known as mainframes, ensuring their smooth operation, performing routine maintenance, and troubleshooting issues. They often use specialized software and follow strict procedures to maintain system security and performance, typically working in data centers or IT environments with shift schedules. Certification in mainframe technologies can enhance job prospects.

What are the most commonly searched types of Mainframe Operator jobs in Baltimore, MD?

The most popular types of Mainframe Operator jobs in Baltimore, MD are:

What are popular job titles related to Mainframe Operator jobs in Baltimore, MD?

For Mainframe Operator jobs in Baltimore, MD, the most frequently searched job titles are:

What job categories do people searching Mainframe Operator jobs in Baltimore, MD look for?

The top searched job categories for Mainframe Operator jobs in Baltimore, MD are:

Mainframe Operator jobs near you
Infographic showing various Mainframe Operator job openings in Baltimore, MD as of August 2026, with employment types broken down into 47% Full Time, 50% Part Time, 2% Contract, and 1% Nights. Highlights an 97% Physical, 1% Hybrid, and 2% Remote job distribution, with an average salary of $110,320 per year, or $53 per hour.

Mainframe SRE

Kettering, MD • On-site

Anivas Tech LLC
See more jobs at Anivas Tech LLCexternal

$48.50 - $62.50/hr

Full-time

Re-posted 23 days ago

Job description

Description:

Anivas Tech is seeking a Mainframe SRE to support our government agency IT operations. We are looking for a skilled professional with 3+ years of relevant experience who brings strong technical expertise and a commitment to delivering high-quality results in a mission-driven, high-visibility environment.

Requirements:
  •  Operate, monitor, and maintain IBM z/OS mainframe environments supporting mission-critical government applications 
  • Implement Site Reliability Engineering (SRE) principles including SLOs, error budgets, and reliability targets for mainframe systems 
  • Respond to and lead incident resolution efforts for mainframe production issues, coordinating with application and infrastructure teams 
  • Develop and maintain automation scripts and tooling to reduce toil and improve operational efficiency on mainframe platforms 
  • Perform capacity planning, performance tuning, and workload optimization across mainframe subsystems (CICS, IMS, DB2, MQ) 
  • Support change management processes including patching, maintenance windows, and release deployments 
  • Collaborate with DevOps and development teams to extend CI/CD practices into mainframe pipelines 
  • Document standard operating procedures, runbooks, and post-incident reviews 
  • Participate in on-call rotation and ensure adherence to availability SLAs 
  • Identify and drive systemic improvements to reduce recurrence of incidents and enhance mainframe reliability 
  • US citizen with ability to obtain and maintain a Secret clearance 
  • Bachelor's degree in Computer Science, Information Systems, Engineering, or related field; 5 additional years of relevant experience accepted in lieu of degree 
  • 3+ years of experience in mainframe operations, administration, or engineering on IBM z/OS platforms 
  • Proficiency in JCL, REXX, or other mainframe scripting languages 
  • Experience with core mainframe subsystems including CICS, IMS, DB2, VSAM, and/or JES2/JES3 
  • Understanding of SRE practices such as monitoring, alerting, SLO definition, and incident management 
  • Strong analytical and troubleshooting skills in complex production environments 
  • Ability to communicate technical issues clearly to both technical and non-technical stakeholders 
  • Experience in a federal government IT environment 
  • Familiarity with DevOps toolchains and integrating mainframe systems with modern CI/CD pipelines 
  • Experience with IBM OMEGAMON, Broadcom Mainframe Suite, or equivalent monitoring tools 
  • Agile or SAFe delivery methodology experience 
  • IBM Certified Systems Administrator – z/OS or equivalent certification 

"Anivas Tech is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to protected characteristics as defined by law."