Software Engineer III

Austin, TX - USA

Monthly Salary: Not Disclosed

Posted on: 3 hours ago

Vacancies: 1 Vacancy

Job Summary

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. This is a PROACTIVE requisition

Background Check : No

Drug Screen : No

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 / ...