Senior Linux System Administrator

Req ID: RQ215945 Type of Requisition: Regular Clearance Level Must Be Able to Obtain: None Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Skills: Information Technology (IT) Infrastructure,Linux,System Administration Experience: 8 + years of related experience Job Description: 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. Responsibilities:

• 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. o Follow system administration best practices.

o Patch and configure systems in compliance with NOAA security requirements. o Upgrade operating systems in advance of end-of-support dates. o Support software development efforts. o Deploy software application updates for both COTS as well as internal applications. o Plan and implement migration of local systems to a cloud environment, where possible, in a cost-effective manner. o Ensure reliable system and data backups. o Manage/maintain server certificates. o Maintain Red Hat Enterprise Linux subscriptions. o 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.

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

• 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. Total Rewards at GDIT: 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, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process: As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work: We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans General Dynamics Information Technology