Mainframe Systems Administrator Job Description [Updated for 2025]

In the technology-driven world, the role of Mainframe Systems Administrators is becoming increasingly critical.

As technology evolves, the demand for skilled individuals who can manage, maintain, and secure our mainframe systems grows stronger.

But what is really expected from a Mainframe Systems Administrator?

Whether you are:

• A job seeker trying to understand the core aspects of this role,
• A hiring manager outlining the perfect candidate,
• Or simply fascinated by the world of mainframe systems,

You’ve come to the right place.

Today, we present a customizable Mainframe Systems Administrator job description template, designed for seamless posting on job boards or career sites.

Let’s dive in.

Mainframe Systems Administrator Duties and Responsibilities

Mainframe Systems Administrators are responsible for the day-to-day operations and maintenance of the organization’s mainframe computer systems.

They ensure that these complex, large-scale systems are running smoothly and securely, and respond to any issues or problems as quickly as possible.

Mainframe Systems Administrators have the following duties and responsibilities:

• Install, configure, and maintain the mainframe system software and hardware
• Monitor system performance and ensure efficient operation
• Troubleshoot and resolve complex system issues to ensure minimal disruption to users
• Perform system backups and recovery processes
• Develop and implement disaster recovery plans for the mainframe systems
• Work with application developers to help optimize the performance of applications on the mainframe
• Ensure the security of the mainframe systems, including managing user access and maintaining security logs
• Provide technical support and guidance to users and other IT staff
• Keep up to date with latest mainframe technologies and recommend upgrades or new systems as needed
• Document system configurations, updates, and changes for future reference

 

Mainframe Systems Administrator Job Description Template

Job Brief

We are seeking a knowledgeable and experienced Mainframe Systems Administrator to manage and enhance our company’s mainframe computer systems.

Responsibilities include installation, maintenance, and updating of mainframe systems, ensuring system security, and troubleshooting any issues that arise.

Our ideal candidate has a strong background in mainframe systems administration, with solid knowledge of z/OS operating system and a deep understanding of mainframe hardware.

In this role, you will ensure our company’s mainframe computer systems run smoothly and securely, enabling optimal performance and functionality.

 

Responsibilities

• Install, maintain, and update mainframe operating systems and software.
• Monitor system performance and resolve any technical issues that arise.
• Implement and ensure adherence to mainframe security protocols.
• Work closely with IT staff and management to plan and implement system enhancements.
• Ensure data backups and disaster recovery operations are performed consistently and correctly.
• Develop procedures and scripts for data manipulation and system maintenance.
• Stay up-to-date on latest mainframe technologies and updates.
• Create and maintain documentation on mainframe procedures and operations.
• Provide technical support to staff and users as needed.
• Perform system diagnostics and troubleshooting to resolve complex issues.

 

Qualifications

• Proven work experience as a Mainframe Systems Administrator or similar role.
• Strong knowledge of mainframe hardware, z/OS operating system and its subsystems.
• Familiarity with mainframe software such as CICS, DB2, and JCL.
• Knowledge of mainframe security protocols and disaster recovery procedures.
• Excellent problem-solving and troubleshooting skills.
• Ability to work independently and as part of a team.
• Excellent communication skills, both verbal and written.
• Bachelor’s degree in Computer Science, Information Systems, or a related field.

 

Benefits

• 401(k)
• Health insurance
• Dental insurance
• Retirement plan
• Paid time off
• Professional development opportunities

 

Additional Information

• Job Title: Mainframe Systems Administrator
• Work Environment: Office setting with options for remote work. Minimal travel may be required for training or conferences.
• Reporting Structure: Reports to the IT Manager or Director of IT.
• Salary: Salary is based upon candidate experience and qualifications, as well as market and business considerations.
• Pay Range: $75,000 minimum to $130,000 maximum
• Location: [City, State] (specify the location or indicate if remote)
• Employment Type: Full-time
• Equal Opportunity Statement: We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.
• Application Instructions: Please submit your resume and a cover letter outlining your qualifications and experience to [email address or application portal].

 

What Does a Mainframe Systems Administrator Do?

A Mainframe Systems Administrator is a key part of an organization’s IT department and primarily works with large, powerful computer systems known as mainframes.

They are responsible for the installation, configuration, and maintenance of the organization’s mainframe systems.

This includes ensuring the performance, reliability, and security of these systems.

Their work includes managing databases, monitoring system performance, conducting system backups, and ensuring the mainframe’s software and hardware are up-to-date.

They also troubleshoot and resolve any issues with the mainframe system, such as hardware failures, software bugs, or system crashes.

Mainframe Systems Administrators often work closely with other IT professionals to implement system changes or upgrades, and they coordinate with other departments to ensure that the mainframe meets the organization’s needs.

They may also create and maintain documentation for the mainframe system, including operating procedures, system configurations, and disaster recovery plans.

In summary, a Mainframe Systems Administrator plays a crucial role in ensuring that an organization’s mainframe systems are reliable, secure, and efficient.

 

Mainframe Systems Administrator Qualifications and Skills

A proficient Mainframe Systems Administrator should possess a blend of technical know-how, practical experience, and soft skills to manage and maintain mainframe systems, including:

• Experience in mainframe systems and operating environments, such as z/OS, z/VM, z/Linux.
• Technical expertise in mainframe hardware and software, including understanding of mainframe architecture and subsystems.
• Proficiency in using Job Control Language (JCL), Time Sharing Option (TSO), and Interactive System Productivity Facility (ISPF).
• Ability to diagnose and resolve system issues using effective problem-solving skills.
• Competence in managing system backups, storage, and recovery procedures to ensure data integrity and security.
• Understanding of software licensing, patch management, and mainframe security protocols.
• Excellent communication skills to work effectively with both technical and non-technical team members, and to accurately document system changes and updates.
• Organizational skills and attention to detail for managing multiple tasks simultaneously and ensuring system uptime and performance.
• Knowledge of disaster recovery procedures and capacity planning.
• Experience with mainframe-related software and tools, like CICS, DB2, IMS, and COBOL.

 

Mainframe Systems Administrator Experience Requirements

Mainframe Systems Administrators generally require a minimum of 2 to 3 years of experience with mainframe operating systems like z/OS or VSE.

This experience often comes from roles such as Mainframe Operator or Systems Programmer.

Entry-level candidates may have less than 2 years of experience, often gained through internships or part-time roles in IT departments where they have had exposure to mainframe systems.

For those with 3 to 5 years of experience, they often develop their technical skills and knowledge in the use of mainframe tools and utilities, job control language (JCL), database management, and disaster recovery procedures in a Mainframe Systems Administrator role.

Candidates with more than 5 years of experience often have a deep understanding of mainframe architecture and subsystems.

They may have experience in system performance tuning, capacity planning, and mainframe security management.

Those with over 7 years of experience have likely had some leadership experience and could be ready for a managerial or team lead position in mainframe systems administration.

They may also have significant experience in project management and strategic planning related to mainframe systems.

 

Mainframe Systems Administrator Education and Training Requirements

Mainframe Systems Administrators typically hold a bachelor’s degree in computer science, information technology, or a related field.

In addition to their formal education, they should be proficient in mainframe-specific languages such as COBOL, JCL, and REXX.

Familiarity with databases like DB2, IMS and IDMS can also be beneficial.

As mainframes are widely used in large enterprises, understanding of operating systems such as z/OS, z/VM, or z/VSE is essential.

Moreover, knowledge of mainframe hardware, storage management, and networking principles is also required.

Advanced roles may require a master’s degree in information systems or a related discipline.

An understanding of business principles can also be beneficial since these professionals often work closely with business operations teams.

Many Mainframe Systems Administrators further their skills through certifications like Certified System Administrator or IBM Certified System Administrator – z/OS.

These certifications demonstrate a commitment to staying updated with the latest technological advancements and best practices.

In addition to technical skills, Mainframe Systems Administrators should have strong problem-solving skills, attention to detail, and the ability to work under pressure, as they are often responsible for maintaining critical business infrastructures.

 

Mainframe Systems Administrator Salary Expectations

A Mainframe Systems Administrator can expect to earn an average salary of $72,643 (USD) per year.

This compensation can vary depending on factors such as years of experience, certifications, the complexity of the systems managed, and the location of the role.

 

Mainframe Systems Administrator Job Description FAQs

What skills does a Mainframe Systems Administrator need?

A Mainframe Systems Administrator needs to have a strong understanding of the mainframe operating systems like z/OS or VSE/ESA.

They should possess technical knowledge of mainframe hardware and software, along with database structures.

Strong problem-solving skills, analytical thinking, and attention to detail are also essential.

Additionally, they should have good communication skills to interact with different teams and departments.

 

Do Mainframe Systems Administrators need a degree?

A bachelor’s degree in computer science, information technology, or a related field is typically required for a Mainframe Systems Administrator role.

However, equivalent experience in mainframe administration might be considered by some employers.

Certain certifications, such as IBM Certified System Administrator, can also be beneficial.

 

What should you look for in a Mainframe Systems Administrator resume?

When reviewing a Mainframe Systems Administrator resume, look for technical skills related to mainframe computing such as COBOL, JCL, CICS, DB2 and IMS DB/DC.

Experience with mainframe security systems such as RACF, ACF2 or Top Secret is also beneficial.

Knowledge of mainframe operating systems, hardware, and networking protocols is important.

Check for any relevant certifications and the practical application of their skills in previous roles.

 

What qualities make a good Mainframe Systems Administrator?

A good Mainframe Systems Administrator is proactive and able to anticipate issues before they arise.

They have excellent problem-solving skills and are able to handle complex situations efficiently.

Strong communication skills are also important, as they often need to explain technical issues to non-technical personnel.

They should also be highly organized and detail-oriented to manage and maintain large and complex mainframe systems.

 

Is it difficult to hire Mainframe Systems Administrators?

Hiring Mainframe Systems Administrators can be challenging due to the specific technical skills required and the decreasing number of professionals with expertise in mainframe systems.

Offering competitive salaries, continuous learning opportunities, and a supportive work environment can help attract qualified candidates.

 

Conclusion

And there we have it.

Today, we’ve lifted the veil on the reality of being a mainframe systems administrator.

Surprise!

It’s not just about managing systems.

It’s about orchestrating the backbone of digital infrastructure, one system at a time.

Armed with our top-notch mainframe systems administrator job description template and real-life instances, you’re ready to make your next move.

But why halt here?

Dig deeper with our job description generator. It’s your next step towards precision-shaped job listings or refining your resume to the nth degree.

Remember:

Every system managed is a crucial component of the larger digital framework.

Let’s construct that digital future. Together.

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