Software Engineer III

Job Title

Mainframe Top Secret Security Administrator (Software Engineer III)

Job Type

Contract | Full-Time

Category

Applications / Software Development

Duration

February 2, 2026 – August 31, 2026

Up to 600 total hours

Potential for renewal (up to three one-year extensions)

Work Location

Remote / Telework (Work From Home)

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:
• JES2
• 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

Required Skills :

Basic Qualification :

Additional Skills :

This is a high PRIORITY requisition.