Mainframe Performance Analyst

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Responsibilities

Requisition ID R-10382610 Date posted 12/04/2025 End Date 03/29/2026 State/Region New Jersey Additional Locations Lincoln, Nebraska Location Type Remote

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Job Title

Mainframe Performance Analyst

About your role:

As a Mainframe Performance Analyst, you will be responsible for analyzing, monitoring, and optimizing the performance of mainframe systems. This role involves identifying performance bottlenecks, implementing improvements, and ensuring the efficient operation of critical business applications meet SLAs and KPIs.

What you'll do:

• Conduct detailed analysis of mainframe performance metrics to identify areas for improvement as well as generating detailed reports on system performance and present findings to management while interpreting performance data and identify bottlenecks or problems.
• Continuously monitor mainframe systems to ensure optimal performance and reliability.
• Develop and implement strategies to enhance system performance, including tuning and configuration adjustments.
• Work closely with systems programmers, administrators, and other IT staff to troubleshoot and resolve performance issues while maintaining comprehensive documentation of performance issues, solutions, and system changes.
• Conduct regular system audits to ensure compliance with performance standards and identify potential issues.
• Participate in disaster recovery planning and testing to ensure system resilience.
• Work collaboratively with systems programmers, system administrators, development programmers and other IT staff to ensure efficient operation of the mainframe system.
• Document mainframe capacity and performance issues and implement procedures for system performance optimization.

Experience you'll need to have:

• 10+ years' experience with the Mainframe.
• 6+ years of experience in mainframe performance analysis and optimization.
• Strong analytical skills, proficiency in performance monitoring tools (e.g., RMF, OMEGAMON, SYSVIEW, MAINVIEW), and excellent problem-solving abilities.
• In-depth knowledge of mainframe architecture, operating systems (e.g., IBM z/OS), and job control languages (e.g., JCL).
• Bachelor's degree in a related field or an equivalent combination of education, military, and work experience.

Experience that would be great to have:

• Knowledge of key subsystems such as DB2, CICS, MQ, HSM, DASD and Tape devices, Catalogs, Coupling Facilities, and Sysplexes.
• Relevant certifications in mainframe technologies and performance management.
• In-depth knowledge of mainframe architecture, operating systems (e.g., IBM z/OS), and job control languages (e.g., JCL).
• Mainframe languages such as Assembler, Cobol, SAS, REXX.
• Linux, z/OCF and CP4D is a plus.

How you’ll work:

• This role requires use of a computer and audio equipment.

Sponsorship:

• You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including, but not limited to, F-1 (OPT, CPT, STEM), H-1B, H-2, or TN, or any candidate requiring sponsorship, now or in the future, will not be considered.

Benefits at Fiserv:

• Fuel Your Life program to support your physical, financial, social, and emotional well-being
• Paid holidays and generous time away policies
• No-cost mental health support through Employee Assistance Programs
• Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
• Eight Employee Resource Groups to foster a collaborative culture and expand your network
• Unparalleled professional growth with training, development, and internal mobility opportunities
• Medical, dental, vision, life, and disability insurance options available from day one
• Retirement planning and discounted shares with the Employee Stock Purchase Plan
• Tuition assistance and reimbursement program
• Paid parental, caregiver, and military leave

#mainframe

#mainframecomputing

#zOS

#IBM

#WeAreMainframe

#LI-CD1

Salary Range

$110,000.00 - $186,000.00

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact . Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

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Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.

Benefits

• Medical, Vision and Dental Benefits

  Comprehensive benefit plans to suit your unique needs

• Fuel Your Life Wellness Program

  Resources to elevate your well-being

• 401k, Employee Stock Purchase Plans and Incentives & Bonuses

  When Fiserv performs well, so does your financial health

• Employee Resource Groups

  Celebrating inclusion in the workplace

• Paid Time Away

  Providing the time off to manage personal needs