Senior Linux Systems Administrator

TEKsystems is seeking a Senior Linux Systems Administrator, who will be 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.

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.

Qualifications
● 8+ years of 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.
● This position supports a long term Federal Government contract, and REQUIRES, either US Citizenship OR a Greencard, in order to be eligible.