Linux Systems Administrator

2 weeks ago

Dahlgren, United States Bowhead Full time

Overview LINUX ADMINISTRATOR (RDTE) Bowhead seeks a Linux Administrator to join our team in Dahlgren, VA. The Linux Administrator is responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing and Evaluation (RDT&E) environment. ResponsibilitiesUtilize Red Hat Enterprise Linux system administration experience to provide technical problem solving and in-depth consulting relative to system operations Automate installation methods and system imaging (e.g. Kickstart/Ansible) Use cryptographic experience to set up public key infrastructure (PKI) to create, manage, distribute, use, store, and revoke digital certificates and manage public-key encryption DISA STIG implementation and work within Configuration-Managed Environments Analyze, design, and implement modifications to system software to improve and enhance system performance by correcting errors Plan new hardware acquisitions, interact with vendors, educate customers, and collaborate with other projects within the organization Work closely with engineers to help them use workstations and servers to solve their computationally intensive problems Support application installation, license management, software tracking / distribution and backup/recovery of system configurations and user data files Understand and use essential tools for handling files, directories, command-line environments, and documentation Operate running systems, including booting into different run levels, identifying processes, starting and stopping virtual machines, and controlling services Configure local storage using partitions and logical volumes Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems Deploy, configure, and maintain systems, including software installation, update, and core services Manage users and groups, including use of a centralized directory for authentication Manage security, including basic firewall and SELinux configuration Configure static routes, packet filtering, and network address translation Set kernel runtime parameters Produce and deliver reports on system utilization Use shell scripting to automate system maintenance tasks Configuring system logging, including remote logging Configure a system to provide networking services, including HTTP/HTTPS, DNS, SMTP, SSH and NTP QualificationsMinimum three - six years' experience in system administration of Linux-based servers and Linux-based workstations Ideal Linux Admin will have troubleshooting skills in RHEL 7/8/9 OS and basic knowledge of Networking fundamentals, specifically TCP/IP protocol suite and IP configuration In addition, working knowledge of security guidelines and polices (DISA STIGs) and tools (Evaluate-STIG, STIG-Manager) Knowledge of / experience with Tenable suite of products (Security Center, Nessus Scanner, Nessus Agent) is a plus Seeking specific experience with the following operating systems and services is required: Red Hat Enterprise Linux (RHEL 8.x with RHEL 7.x and/or RHEL9.x a plus) Must meet DoD 8570 Information Assurance Workforce (IAWF) criteria or Information Assurance Technical (IAT) Level II certification at time of hire (i.e., Security+). Have knowledge of corporate services including: DNS, SMTP, Splunk, Centralized patching solutions such as Red Hat Satellite, Automation solutions such as Ansible Tower / AWX Knowledge of / experience with: Single Sign on solutions such as RHSSO; Virtualization platform management systems such as VMWare / VSphere / Vcenter is a plus Demonstrated experience managing the installation and maintenance of IT infrastructure Experience working in an environment with rapidly changing job priorities Experience with Service Now or similar Ticket Management system Linux+ or Red Hat Certification preferred Physical Demands: Must be able to lift up to 10-20 pounds Must be able to stand and walk for prolonged amounts of time Must be able to twist, bend and squat periodically SECURITY CLEARANCE REQUIREMENTS: Must be able to obtain and maintain a security clearance at the Top Secret level. US Citizenship is a requirement for this contract. #LI-JR1

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