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Mainframe Z Os System Programmer Jobs in Indiana

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site +1

$99K - $136K/yr

Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production Operations, System Integration. * Ability to obtain Public Trust clearance. Preferred: * Large-scale ...

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site

$99K - $136K/yr

Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production Operations, System Integration. * Ability to obtain Public Trust clearance. Preferred: * Large-scale ...

SOSi

Sr. Systems Engineer

Indianapolis, IN · On-site +1

$99K - $136K/yr

Strong IBM mainframe experience. * IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production Operations, System Integration. * Ability to obtain Public Trust clearance. Preferred: * Large-scale ...

Huntington

Site Reliability Engineer

Indianapolis, IN

$54.50 - $72.50/hr

Support Mainframe technologies including z/OS, MVS, CICS, MQ, DB2, COBOL, JCL, TSO/ISPF, Easytrieve ... Collaborate with Infrastructure, Cloud, Development, Middleware, and Vendor teams to ensure system ...

Huntington

Site Reliability Engineer

Indianapolis, IN

$57K - $113K/yr

Support Mainframe technologies including z/OS, MVS, CICS, MQ, DB2, COBOL, JCL, TSO/ISPF, Easytrieve ... Collaborate with Infrastructure, Cloud, Development, Middleware, and Vendor teams to ensure system ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site +1

$117K - $154K/yr

... systems and mission support. Its capabilities include data science, software development, network ... Develop and maintain COBOL applications within an IBM z/OS environment. * Analyze and resolve ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site

$117K - $154K/yr

... systems and mission support. Its capabilities include data science, software development, network ... Develop and maintain COBOL applications within an IBM z/OS environment. * Analyze and resolve ...

SOSi

Sr. Software Engineer

Indianapolis, IN · On-site +1

$117K - $154K/yr

... systems and mission support. Its capabilities include data science, software development, network ... Develop and maintain COBOL applications within an IBM z/OS environment. * Analyze and resolve ...

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Mainframe Z Os System Programmer information

What is a mainframe z/os system programmer?

A Mainframe Z OS System Programmer is an IT professional responsible for installing, configuring, maintaining, and troubleshooting IBM mainframe systems running the z/OS operating system. They ensure the mainframe environment is stable, secure, and optimized for performance, supporting critical business applications. Their duties include system upgrades, applying patches, disaster recovery planning, and providing technical support to other IT teams. This role is crucial for organizations that rely on mainframe computing for large-scale transaction processing and data management.

What are the key skills and qualifications needed to thrive as a mainframe z/os system programmer?

To thrive as a Mainframe Z/OS System Programmer, you need deep expertise in IBM mainframe operating systems, programming languages like Assembler and REXX, and a strong foundation in systems administration, usually supported by a relevant degree or equivalent experience. Familiarity with tools such as IBM SMP/E, TSO/ISPF, JCL, and mainframe security systems is essential, and certifications like IBM Certified System Programmer can be beneficial. Analytical thinking, attention to detail, and effective problem-solving are key soft skills that help professionals excel in troubleshooting and collaborating with technical teams. These skills and qualifications are crucial for ensuring reliable, secure, and efficient mainframe operations that support critical business processes.

What are some common challenges faced by mainframe z/os system programmers, and how can they be addressed?

Mainframe Z/OS System Programmers often encounter challenges such as managing system upgrades, ensuring high availability, and troubleshooting complex performance issues. Keeping up with evolving technologies and integrating new software with legacy systems can also be demanding. To address these challenges, programmers typically work closely with application developers, attend ongoing training, and utilize robust monitoring tools. Collaboration and strong communication within cross-functional teams are key to maintaining system stability and implementing updates smoothly.

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For Mainframe Z Os System Programmer jobs in Indiana, the most frequently searched job titles are:

What job categories do people searching Mainframe Z Os System Programmer jobs in Indiana look for?

The top searched job categories for Mainframe Z Os System Programmer jobs in Indiana are:

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Mainframe Z Os System Programmer jobs near you
Infographic showing various Mainframe Z Os System Programmer job openings in Indiana as of June 2026, with employment types broken down into 43% Full Time, and 57% Contract. Highlights an 66% In-person, and 34% Remote job distribution.

Sr. Systems Engineer

SOSi

Indianapolis, IN • On-site, Remote

$99K - $136K/yr

Full-time

Posted 17 days ago

Job description

Company Description

Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.

Job Description

SOSi is seeking a Senior Systems Engineer to support operations and sustainment of a mission-critical enterprise application supporting federal business operations.

Job Description

The Senior Systems Engineer will provide technical leadership supporting production operations, infrastructure integration, database technologies, release management, and enterprise system performance within a large IBM mainframe environment.

Responsibilities

  • Support IBM z/OS production environments.
  • Maintain and support IDMS database environments.
  • Support production deployments and release activities.
  • Troubleshoot system performance issues and production incidents.
  • Support configuration management and technical documentation.
  • Coordinate system changes across technical teams.
Qualifications
  • Bachelor's degree in Engineering, Computer Science, Information Systems, or related field. Equivalent experience may be substituted.
  • 10+ years supporting enterprise systems.
  • Experience supporting mission-critical production operations.
  • Strong IBM mainframe experience.
  • IBM z/OS, IDMS, Oracle, Cognos, Broadcom Endevor, Production Operations, System Integration.
  • Ability to obtain Public Trust clearance.

Preferred:

  • Large-scale financial or ERP systems.
  • Federal enterprise environments.

Additional Information

Work Environment

  • Normal office conditions with potential to perform duties in deployed locations
  • Remote or Hybrid work model 
  • Core hours of operation are Monday through Friday, 0600 – 1700.
  • May be requested to work evenings and weekends to meet program and contract needs

Working at SOSi

All interested individuals will receive consideration and will not be discriminated against for any reason.