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

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