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Senior Mainframe System Programmer (z/OS)

Fiserv

Full Time
Senior
99k-178k
15 days ago

Job Description

About the Role

The Senior System Programmer is responsible for the installation, planning, design, management, configuration, and implementation of z/OS and z/OS based ISV software tools. This position supports existing z/OS systems, ensures adherence to standards and procedures, assists operational and development teams in problem resolution, and works with other teams to define and implement technical solutions to meet business needs while seeking operational and business improvements.

Key Responsibilities

  • Install, maintain, and customize operating systems and third-party ISV system software.
  • Prepare and install system software including OS and third-party packages by following vendor and location-specific procedures.
  • Perform problem determination and resolution, including capturing system dumps, working with vendor support, applying fixes and patches, and coordinating testing and implementation of updates.
  • Work with internal customers to clarify technical requests, testing, validation, and project support needs.
  • Collaborate with capacity and performance teams to proactively address potential performance issues impacting service levels.
  • Resolve incidents quickly with computer operations and automate operational processes such as IPLs, Cold Loads, and dump processing.
  • Provide informal project management for complex projects.
  • Train clients and colleagues on relevant systems and processes.
  • Assist in reviewing software requirements and establishing technical direction and business strategy for mainframe hardware upgrades.

Requirements

  • 7+ years' experience with installing ISV software from vendors such as Broadcom, BMC, Precisely, etc.
  • 6+ years of experience with JCL, UNIX Shell, IBM system utilities, zSeries, z/OS, and MVS.
  • 6+ years of experience with software installation and customization.
  • 5+ years of experience with system performance, capacity planning, and disaster recovery.
  • Bachelor's degree in a related field or an equivalent combination of education, military, and work experience.

Nice 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).

Qualifications

  • 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).

Benefits & Perks

  • Salary Range $99,400.00 - $177,600.00 (applicable in certain states).
  • Eligible for an annual incentive opportunity, which may include a cash bonus and equity awards.
  • Support for workplace accommodations for individuals with disabilities.

Working at Fiserv

Fiserv is proud to be an Equal Opportunity Employer committed to diversity and inclusion. The company values innovation, collaboration, and helping clients lead the transformation of financial services technology. They emphasize turning possibilities into realities and fostering a supportive environment for talented professionals.

Apply Now

Job Details

Posted AtJul 10, 2025
Salary99k-178k
Job TypeFull Time
ExperienceSenior

Job Skills

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About Fiserv

Website

fiserv.com

Industry

Custom Computer Programming Services

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