z/OS Mainframe Systems & Network Lead

Illinois Secretary of State; Springfield (IL); On-site; USD 7,000 - 13,000; Full time

Job summary

Illinois Secretary of State is seeking an Information Systems Advisor I to lead senior-level mainframe system administration for a z/OS environment. The role covers security, network configuration, and DR support, working with IBM and internal IT teams to ensure reliability and compliance.

The position requires knowledge of mainframe systems, strong problem solving, and the ability to mentor staff while maintaining enterprise-level systems for critical applications.

Qualifications

• Requires knowledge, skill, and mental development equivalent to completion of two years of college in a computer science field
• Four years of experience with technical systems and/or programming and/or IT project management or equivalent experience

Responsibilities

• Provide advanced system administration for IBM z/OS mainframe systems.
• Manage and maintain mainframe network configurations (SNA, TCP/IP, VTAM, NJE).
• Troubleshoot complex system and network issues; drive root cause analysis.
• Coordinate system maintenance, upgrades, and PTFs with vendors.
• Enforce mainframe security policies (RACF/ACF2/Top Secret) and user access controls.
• Participate in incident, change, and problem management processes.
• Collaborate with teams to ensure high availability across systems.
• Mentor junior staff and drive automation initiatives.
• Perform other duties as required.

Skills

Systems design

Analytical thinking

Communication skills

Documentation

Problem solving

Education

Two years of college in CS/related field

Job description

Illinois Secretary of State is seeking an Information Systems Advisor I to lead senior-level mainframe system administration for a z/OS environment. The role covers security, network configuration, and DR support, working with IBM and internal IT teams to ensure reliability and compliance.

The position requires knowledge of mainframe systems, strong problem solving, and the ability to mentor staff while maintaining enterprise-level systems for critical applications.