Mainframe Network Administrator Jobs (NOW HIRING)

Submission Due: 01/21/2026
Location - Remote, US
Duration - 7 months
I. DESCRIPTION OF SERVICES
The client requires the services of 1 Mainframe Top Secret Security Administrator, hereafter referred to as Candidate(s), who meets the general qualifications of a Legacy Level 3 Software Engineer, and the specifications outlined in this document for the client.
All work products resulting from the project shall be considered "works made for hire " and are the property of the Railroad Commission of Texas and may include pre-selection requirements that potential Vendors (and their Candidates) submit to and satisfy criminal background checks as authorized by Texas law. The Client will pay no fees for interviews or discussions, which occur during the process of selecting a Candidate(s).
? Serve as a subject-matter expert in Mainframe Top Secret Security Administration to maintain data security and regulatory compliance.
? Work involves highly advanced (senior-level) systems administration in support of agency mainframe applications and supporting infrastructure; and coordinate day-to-day system administration functions such as mainframe configuration, break/fix system support, and base user account creation/support.
? Work requires strong and proven hands-on experience in Mainframe Top Secret Security Administration and z/OS Administration.
? Work also requires expertise in certificate renewals and access control within mainframe environments as well as a strong understanding of security compliance, audit practices, and risk mitigation.
? Routine system administration functions to include security administration support, performance monitoring, security monitoring, and system maintenance.
? Work includes supporting data entry and control work processes, overseeing and coordinating mainframe operations in the State's Consolidated Data Center Services (DCS), and working with the Network Administration, Customer Support and Applications Development & Support teams to provide support necessary for day-to-day mainframe operations.
? Experience with Informatica Power Exchange Administration for Change Data Capture processing using mainframe data sources and targets (i.e., IMS and VSAM) a plus.
The Worker will apply their expert knowledge and experience as a Mainframe Top Secret Security Administrator to support both the needs of the Legacy Systems as well as those for the Mainframe Transformation Team.
WORKER SKILLS AND QUALIFICATIONS
? Serve as a subject-matter expert in Mainframe Top Secret Security Administration to maintain data security and regulatory compliance.
? Provide primary support as the subject matter expert for z/OS operating systems and system components; provide direct technical support as needed in the planning, implementation and testing of releases, upgrades, or changes to z/OS operating system, network, and component software.
? Provide end user support for assigned Independent Software Vendor (ISV) products such as BlueZone.
? Diagnose platform, software and related product issues and follow up with root cause analysis.
? Assist with maintaining and providing technical support for Mainframe Production Control and Support Jobs and monthly Mainframe Job Scheduler.
II. CANDIDATE SKILLS AND QUALIFICATIONSMinimum Requirements:
Candidates that do not meet or exceed the minimum stated requirements (skills/experience) will be displayed to customers but may not be chosen for this opportunity. Years Required/Preferred Experience 8 Required Hands-On Experience with TSS (Top Secret Security) 5 Required Hands-On Experience with z/OS Administration 5 Required Experience with JES2, z/OS Unix System Services (OMVS),
Storage Management Subsystem (SMS) 3 Required Experience with TLS configuration (certificates, SSL ? RSA Keys, SFTP, FTPS) 2 Preferred Experience with REXX 3 Preferred Experience with performance monitoring to include initial analysis of performance issues 3 Preferred Experience with Informatica Power Exchange Administration 3 Preferred Working knowledge for each of the following:
? z/OS Operation
? z/OS Networking ? VTAM (Virtual Telecommunications
Access Method), TCP/IP (Transmission Control
Protocol/Internet Protocol)
? z/OS-centric automated job scheduling and
management software (JOBTRAC)
? Terminal Emulator Software (BLUEZONE)
? VTAM Session Manager Software (VTAM/SWITCH)
? SMP/E (System Modification Program/Extended)
? RMF (Resource Measurement Facility)
? SMF (System Management Facility)
? WLM (Workload Management)
? JCL (Job Control Language)
? GRS (Global Resource Serialization)
? VSAM (Virtual Storage Access Method)
? TSO (Time Sharing Option)