ASSYST ยท 19 hours ago
Mainframe Administrator (Security)
ASSYST is seeking a highly experienced and motivated Mainframe Administrator (Security) to join our client team in Austin, TX. This role serves as a subject-matter expert in Mainframe security and system administration, focusing on Top Secret Security (TSS) and z/OS environments, while ensuring data security, regulatory compliance, and providing advanced technical support.
Big DataEnterprise Resource Planning (ERP)
Responsibilities
Serve as the subject-matter expert for Mainframe Top Secret Security (TSS) administration to ensure data protection, access control, and regulatory compliance
Provide primary technical support for z/OS operating systems and system components, including planning, implementation, testing, and support of releases, upgrades, and system changes
Support and troubleshoot z/OS system software, network components, and ISV products, including terminal emulation software such as BlueZone
Deliver end-user support for assigned Mainframe tools and applications
Diagnose platform, system software, and product-related issues; perform root cause analysis and implement corrective actions
Assist in maintaining and providing technical support for Mainframe Production Control, batch processing, and monthly Mainframe Job Scheduler activities
Support and maintain security configurations, including TLS/SSL certificates, encryption keys, and secure data transfers (SFTP/FTPS)
Monitor system performance and assist with initial analysis of performance issues to ensure system reliability and efficiency
Collaborate with infrastructure, application, and operations teams to ensure secure and stable Mainframe operations
Participate in documentation, audits, and compliance activities related to Mainframe security and operations
Qualification
Required
8+ years of hands-on experience with Top Secret Security (TSS) administration
5+ years of hands-on experience in z/OS Administration
5+ years of experience with JES2
5+ years of experience with z/OS Unix System Services (OMVS)
5+ years of experience with Storage Management Subsystem (SMS)
3+ years of experience with TLS configuration, including certificates, SSL/RSA keys, SFTP, and FTPS
2+ years of experience with REXX scripting
3+ years of experience with performance monitoring and analysis
3+ years of experience with Informatica PowerExchange Administration
Company
ASSYST
ASSYST is a global CMMI level 3 information technology solutions provider.
H1B Sponsorship
ASSYST has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2024 (2)
Funding
Current Stage
Growth StageRecent News
2025-07-16
Company data provided by crunchbase