Senior Linux System Administrator

Senior Linux System Administrator

The position is for the Senior Linux System Administrator responsible for the servers that process data from a global network of buoys, managed by the National Data Buoy Center (NDBC). This position is located at the NDBC facility at the Stennis Space Center in Mississippi.

• Participate in a rotation to provide 24x7x365 on-call support for the primary IT mission essential data processing, applications, and functions to support the continuity of operations of the NDBC information system.
• Support IT architecture improvements to ensure continuity of operations for primary mission essential functions and the flow of data.
• Support the annual NDBC IT Assessment and Authorization (A&A) audits through security patching and security-minded configuration updates; actively address changes needed as a result of Plan of Action & Milestones (POAM) requirements; help ensure NDBC maintains its Authority to Operate (ATO).
• Maintain all Linux-based servers and clients located on premises and in an AWS cloud environment.
• Follow system administration best practices.
• Patch and configure systems in compliance with NOAA security requirements.
• Upgrade operating systems in advance of end-of-support dates.
• Support software development efforts.
• Deploy software application updates for both COTS as well as internal applications.
• Plan and implement migration of local systems to a cloud environment, where possible, in a cost-effective manner.
• Ensure reliable system and data backups.
• Manage/maintain server certificates.
• Maintain Red Hat Enterprise Linux subscriptions.
• Perform ongoing performance tuning, hardware upgrades, and resource optimization as required.
• Communicate/brief upcoming maintenance efforts and/or anticipated impacts to stakeholders.
• Implement strategies to automate routine administration tasks.
• Maintain and monitor data center environmental equipment.

Bachelors of Computer Science, Information Systems, or equivalent. Experience may be considered as an equivalent.

• 8 years or more experience preferred in the installation/configuration, operation, and maintenance of IT system hardware and software and related IT infrastructure.
• Demonstrated advanced knowledge and experience supporting Red Hat Linux, Apache, Tomcat, drivers, applications, vulnerabilities, security requirements and postures, quarterly STIG updates.
• Knowledge of AWS solutions and migration of Linux systems is considered a plus.
• An understanding of programming languages, such as Java, Python, PHP, and Perl.
• Experience in installing and maintaining system hardware, operating systems, software systems, network systems, security systems.
• Experience applying OS patches and upgrades on a regular basis, and upgrades of administrative tools and utilities; configuring, adding, and removing services as necessary.
• Experience implementing automation to streamline recurring system administration tasks is highly preferred; experience with scripting languages.
• Experience with AWS lamda, containers, EC2 instances is desirable.
• Able to work autonomously and take initiative in identifying areas for improvements and proposing solutions.
• Able to communicate effectively with coworkers and stakeholders.
• Must be able to successfully complete a NOAA (Stennis Space Center)/NASA background investigation for site/system access.
• Must be able to obtain and maintain facility credentials/authorization.
  
  Note:
  
  US Citizenship or a valid Green Card is required for facility credentials/authorization at this work location.

The likely salary range for this position is $90,950 - $123,050. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.

• Scheduled Weekly
  
  Hours:
  
  40
• Travel Required:
  
  None
• Telecommuting Options:
  Onsite
• Work Location:
  
  USA MS Stennis Space Center

Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, pa