Linux Administrator - 304821

Job description

# Linux Administrator - 304821 > Delaware Nation Industries · Boyers, United States (Hybrid) · Full-time · Posted 2026-08-03 **Workplace:** hybrid **Department:** DCSA BIES Mainframe ## Description DNI is a Prime Contractor providing Systems and Application Support for the DCSA (Defense Counterintelligence & Security Agency). These roles can be supported nationally. We are looking for a Linux Application Administrator to join the team. This is a salary-based position with matching 401k and full benefits. **Responsibilities:** - Provide application support for Commercial off the Shelf (COTS) and MP written software (GOTS) which runs on Linux Server in the BIES environment on a 24x7x365 basis. - Access and control functions of the information system/network, administration of user accounts, etc. - Provides support for code deployments and updates - Provide technical support and troubleshooting. - Participate in an on-call rotation for after hours and weekend support. Also includes rotation for code deployments during the Sunday Morning maintenance windows - Attend meetings with DCSA Government Personnel, Database Administrator (DBA), and Development personnel as necessary to review scheduled releases and testing cycles. - Write and submit change requests (CRs) as necessary to schedule changes to the application environment. - Coordinate with other technical teams to ensure maintenance plans do not conflict with changes scheduled by other teams. **Installation Support:** - COTS and GOTS software installations - Application deployment functions - Deployment of custom software as required - Debugging software deployments - Resolving installation problems - Determining host system requirements for application installation and operation - Mapping defined requirements to the application topology - Selecting suitable application editions and installing options - Resolving installation problems - Providing application administration services - Maintain GOTS software revisions and distributions - j. Implementation Support - Provide application support for implementation activities - Plan, perform and implement installations and upgrades - Implement/sustain middleware application components **Maintenance Support:** - Provide application support for maintenance activities - Improve performance with available tools - Checking application for problems - Reviewing operations to ensure only valid processes are running - Optimize the functionality of application software - Diagnose and recover failed applications - Maintain application integrity, performance, and availability **Monitoring Support:** - Provide application support for monitoring activities - Monitor performance during core hours - Take proactive measures to prevent service disruption - Respond to afterhours calls for outages and major system degradations as defined by the - Program Management Office (PMO). **Web Administration Support:** - Provide application support for web administration activities in Windows Server environment - Install, configure, manage troubleshoot web applications - Troubleshooting Support - Provide application support for troubleshooting activities - Identify the problem - Gather additional details - Eliminate variables - Reproduce the problem - Development of hypothesis of root cause **Repair Support:** - Provide application support for repair activities - Repairing and documentation of repairs made for future use - Back out coding and patching changes - Apply patches/code fixes - Assist supporting systems administrators, database, and developers with errors/issues - Application Security Administration Support - The contractor shall provide support for application security administration. - Applying Security Technical Implementation Guides (STIG) guidelines to application - Develop procedures for responding to new threats to systems to ensure confidentiality, integrity, and availability - Ensure the rigorous application of information security/information assurance policies, principles, and practices in the delivery of application services - Streamline security using managed accounts - Control access with permissions and roles **Restoration Support:** - The contractor shall provide support for application restoration planning and execution for emergency and routine restoration requests - Lead or participate in individual or group troubleshooting initiatives to determine incident root causes - Develop system operations work-arounds, if needed - Develop operations restoration plans - Implement or execute individually, or as a team member, the system operations restoration plan, solution or work-around - System operational restoration plan shall include step by step details to be executed in numerical order that will restore the system to full operational capability ## Requirements - Minimum of 3 years relevant Linux Application Administration experience. - CompTIA Security+ or equivalent certification - Active DoD Top Secret Clearance ## Apply [Apply at Delaware Nation Industries](https://apply.workable.com/dnigov/j/8C52EE497D/apply) --- Powered by [Workable](https://www.workable.com)