Software Engineer IIISidram Technologies • Austin, Texas, USA
Software Engineer III
Sidram Technologies • Austin, Texas, USA
[job_card.variable_days_ago]
[job_preview.job_type]
- [job_card.full_time]
[job_card.job_description]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 Experience with performance monitoring and initial performance analysis Experience with Informatica Power Exchange Administration Experience with REXX scripting 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 Ability to access secure environments via remote access tools (e.g. GoToMyPC) May be required to work evenings weekends or holidays with prior approval
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
Preferred Qualifications
Technical Knowledge (Preferred / Working Knowledge)
Additional Requirements
Required Skills :
Basic Qualification :
Additional Skills :
This is a high PRIORITY requisition. This is a PROACTIVE requisition
Background Check : No
Drug Screen : No
Key Skills
Spring,.NET,C / C++,Go,React,OOP,C#,Data Structures,JavaScript,Software Development,Java,Distributed Systems
Employment Type : Full Time
Experience : years
Vacancy : 1
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