Mainframe Top Secret Security Administrator (Software Engineer III)
Remote / Telework (Work From Home)
Duration
February 2, 2026 - August 31, 2026
Up to 600 total hours
Potential for renewal (up to three one-year extensions)
May require occasional after-hours or weekend support with prior approval
Role Overview
We are seeking a senior-level Mainframe Top Secret Security Administrator to support legacy systems and mainframe modernization initiatives. This role serves as a subject matter expert (SME) for mainframe security and z/OS administration, ensuring secure, compliant, and reliable operation of mission-critical systems.
The ideal candidate has deep hands-on experience with Top Secret Security (TSS), z/OS administration, certificate management, access controls, and mainframe operational support in highly regulated environments.
Key Responsibilities
-
- Serve as the SME for Mainframe Top Secret Security (TSS) to maintain system security, compliance, and audit readiness
- Perform advanced z/OS systems administration, including configuration, upgrades, break/fix support, and ongoing maintenance
- Manage user access controls, security profiles, and certificate renewals (TLS/SSL, RSA keys, SFTP, FTPS)
- Provide technical support for system releases, upgrades, and infrastructure changes
- Monitor system performance, diagnose issues, and conduct root cause analysis
- Support mainframe production control, scheduled jobs, and batch processing
- Provide end-user support for ISV tools such as BlueZone
- Coordinate with network, customer support, and application teams to ensure stable daily operations
- Support data integration and change data capture processes (IMS, VSAM) as needed
- Contribute expertise to both legacy system operations and mainframe transformation initiatives
Required Qualifications
-
- 8+ years of hands-on experience with Top Secret Security (TSS)
- 5+ years of hands-on z/OS administration experience
- 5+ years working with:
- JES
- z/OS UNIX System Services (OMVS)
- Storage Management Subsystem (SMS)
- 3+ years of experience with TLS configuration, including certificates, SSL, RSA keys, SFTP, and FTPS
- Strong understanding of mainframe security, compliance, auditing, and risk mitigation
Preferred Qualifications
-
- Experience with performance monitoring and initial performance analysis
- Experience with Informatica Power Exchange Administration
- Experience with REXX scripting
Technical Knowledge (Preferred / Working Knowledge)
-
- z/OS Operations
- z/OS Networking (VTAM, TCP/IP)
- Automated job scheduling tools (e.g., JOBTRAC)
- Terminal emulation tools (BlueZone)
- VTAM session management tools
- SMP/E
- RMF, SMF, WLM
- JCL
- GRS
- VSAM
- TSO
Additional Requirements
-
- Ability to access secure environments via remote access tools (e.g., GoToMyPC)
- May be required to work evenings, weekends, or holidays with prior approval
Never miss an opportunity! Create an alert based on the job you applied for.
