Linux Administrator

Linux Application Administrator

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
• 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