Senior Linux Systems Administrator (NetServ)
US-VA-Dahlgren
GS Careers
Req #: 23880
Type: Full-Time
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Overview: SENIOR LINUX ADMINISTRATOR (NETSERV) Bowhead seeks a Senior Linux Administrator (NetServ) to join our team in Dahlgren, VA. The Senior Linux Administrator(NetServ) is responsible for system administration and customer support of servers and workstations in a Research, Development, and Testing and Evaluation (RDT&E) environment. Responsibilities: * Utilize 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 Qualifications: * Minimum five to eight years' (5-8) experience in system administration of Linux-based servers and Linux-based workstations * High School Diploma required; Bachelros degree preferred * 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 10-15 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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