Senior Linux System Administrator

Req ID: RQ211077 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. While some telework is authorized, regular in-office presence is required, including the ability to come into the office in the event of an issue requiring hands-on resolution. u25cf 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. u25cf Support IT architecture improvements to ensure continuity of operations for primary mission essential functions and the flow of data. u25cf 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). u25cf 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. u25cf Communicate/brief upcoming maintenance efforts and/or anticipated impacts to stakeholders. u25cf Implement strategies to automate routine administration tasks. u25cf 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 : u25cf 8 years or more experience preferred in the installation/configuration, operation, and maintenance of IT system hardware and software and related IT infrastructure. u25cf Demonstrated advanced knowledge and experience supporting Red Hat Linux, Apache, Tomcat, drivers, applications, vulnerabilities, security requirements and postures, quarterly STIG updates. u25cf Knowledge of AWS solutions and migration of Linux systems is considered a plus. u25cf An understanding of programming languages, such as Java, Python, PHP, and Perl. u25cf Experience in installing and maintaining system hardware, operating systems, software systems, network systems, security systems. u25cf Experience applying OS patches and upgrades on a regular basis, and upgrades of administrative tools and utilities; configuring, adding, and removing services as necessary. u25cf Experience implementing automation to streamline recurring system administration tasks is highly preferred; experience with scripting languages. u25cf Experience with AWS lamda, containers, EC2 instances is desirable. u25cf Able to work autonomously and take initiative in identifying areas for improvements and proposing solutions. u25cf Able to communicate effectively with coworkers and stakeholders. u25cf Must be able to successfully complete a NOAA (Stennis Space Center)/NASA background investigation for site/system access. u25cf 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. 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. GDIT typically provides new employees with 15 days of paid leave per calendar year to be used for vacations, personal business, and illness and an additional 10 paid holidays per year. Paid leave and paid holidays are prorated based on the employeeu2019s date of hire. The GDIT Paid Family Leave program provides a total of up to 160 hours of paid leave in a rolling 12 month period for eligible employees. 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. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 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 capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology.Join our Talent Community to stay up to date on our career opportunities and events at Opportunity Employer / Individuals with Disabilities / Protected Veterans

Created: 2025-12-05