Ho2 Systems LLC ยท 13 hours ago
Mainframe Security Administrator (Remote Position)
United States
Contract
Remote
Senior LevelHo2 Systems LLC is seeking a Mainframe Security Administrator who will serve as a senior-level subject matter expert responsible for administering, securing, and supporting enterprise mainframe environments. This role focuses on ensuring data security, regulatory compliance, and operational stability for both legacy systems and mainframe transformation initiatives.
ConsultingInformation TechnologySoftware
Responsibilities
Serve as a subject matter expert in Mainframe Top Secret Security (TSS) to maintain data security, regulatory compliance, and audit readiness
Perform senior-level systems administration for mainframe platforms, including configuration, break/fix support, and base user account creation and maintenance
Provide hands-on administration and support for z/OS operating systems and related system components
Manage certificate renewals, TLS/SSL configurations, RSA keys, and access controls within the mainframe environment
Monitor system performance, security events, and overall system health; identify, analyze, and remediate issues proactively
Support routine mainframe system administration functions, including security administration, performance monitoring, and system maintenance
Coordinate and oversee mainframe operational activities within the Consolidated Data Center Services (DCS) environment
Collaborate with Network Administration, Customer Support, and Applications Development & Support teams to ensure uninterrupted mainframe operations
Provide technical support for ISV products such as BlueZone and other terminal emulator tools
Diagnose platform, software, and product issues and conduct root cause analysis to prevent recurrence
Assist in maintaining and supporting Mainframe Production Control, scheduled batch jobs, and monthly job scheduler operations
Support Mainframe Transformation Team initiatives while continuing to maintain legacy system security and stability
Experience with Informatica PowerExchange Administration for Change Data Capture (CDC) using mainframe data sources (IMS, VSAM) is a plus
Qualification
Required
Serve as a subject matter expert in Mainframe Top Secret Security (TSS) to maintain data security, regulatory compliance, and audit readiness
Perform senior-level systems administration for mainframe platforms, including configuration, break/fix support, and base user account creation and maintenance
Provide hands-on administration and support for z/OS operating systems and related system components
Manage certificate renewals, TLS/SSL configurations, RSA keys, and access controls within the mainframe environment
Monitor system performance, security events, and overall system health; identify, analyze, and remediate issues proactively
Support routine mainframe system administration functions, including security administration, performance monitoring, and system maintenance
Coordinate and oversee mainframe operational activities within the Consolidated Data Center Services (DCS) environment
Collaborate with Network Administration, Customer Support, and Applications Development & Support teams to ensure uninterrupted mainframe operations
Provide technical support for ISV products such as BlueZone and other terminal emulator tools
Diagnose platform, software, and product issues and conduct root cause analysis to prevent recurrence
Assist in maintaining and supporting Mainframe Production Control, scheduled batch jobs, and monthly job scheduler operations
Support Mainframe Transformation Team initiatives while continuing to maintain legacy system security and stability
Preferred
Experience with Informatica PowerExchange Administration for Change Data Capture (CDC) using mainframe data sources (IMS, VSAM)
Company
Ho2 Systems LLC
Ho2 Systems provide consultants to organizations seeking to augment its information technology staff, offer corporate and career-focused computer software training courses.
Founded in 2013
11-50 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase