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IBM Mainframe System Administrator

Chameleon Integrated Services
United States, Missouri, St. Louis
3207 Washington Avenue (Show on map)
May 21, 2025

We are a growing information technology company that offers its employees a culture of success, the chance to work on revolutionary federal IT infrastructure, and the opportunity to grow alongside cutting-edge technology that is reshaping the industry. We are seeking forward-thinking candidates that have strong experience in operational support and can help take us to the next level with a proactive stance.

Chameleon Integrated Services has expertise in operations management, quality systems, data operations and cybersecurity. We secure some of the most sensitive data for the Department of Defense and for other U.S. federal government agencies. We are known for the great care we take with clients and employees, and we believe in promoting from within.

The Position:

Chameleon Integrated Services is currently looking for a part-time IBM Mainframe Administrator to support one of our local clients.

This position requires the ability to pass a Public Trust background check.

Overview:

The IBM Mainframe Administrator serves as the subject-matter expert and an administrator for an IBM Mainframe system. You will assist operators with the support and optimization of jobs and procedures, assist leadership stakeholders in working with technology evaluation and are responsible for the overall system operations, enhancements, and support.

Responsibilities:
  • Work with customer personnel to understand and document system requirements
  • Analyze existing systems and their functionality
  • Architect, design, plan and estimate the enhancements
  • Implement solutions
  • Ensure business user acceptance of the solution

Education & Experience:
  • Familiarity with z/OS operating system, including installation, upgrade, configuration, monitoring, and maintenance
  • Knowledge of all z/OS utilities and tools
  • Knowledge of TSO/JCL, RACF, VTAM
  • Bachelor's degree
  • 10 years or more of experience supporting IBM z/OS operations
  • 5 years or more of experience in a technical leadership role

Certs Required:
  • Must be able to pass a Public Trust background check

Certs Preferred:
  • Professional certifications are a plus

The Location: St Louis, MO 63103

"We are an equal opportunity employer and allQualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, sexual orientation, gender identity, disability or protected veteran status"

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