# Linux Administrator - 304830

> Delaware Nation Industries · Boyers, United States (Hybrid) · Full-time · Posted 2026-05-08

**Salary:** USD 100,000–110,000

**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/B97CEF4264/apply)

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