Linux Systems Administrator (Red Hat) Jobs

UIC Government Services - Dahlgren, VA

Full-time - Mid Level

Dahlgren, VA

Professional, Scientific, and Technical Services

About the position

Bowhead is seeking a skilled Linux Administrator (Red Hat) to join our team in Dahlgren, VA. This role is pivotal in providing customer support and technical assistance to users within the Corporate Research, Development, Test and Evaluation (RDT&E) Network. The Linux Administrator will be responsible for the system administration and customer support of servers and workstations in a dynamic RDT&E environment. The ideal candidate will leverage their expertise in Red Hat Enterprise Linux to troubleshoot and resolve technical issues, ensuring optimal system performance and user satisfaction. In this position, you will utilize your Red Hat Enterprise Linux system administration experience to provide technical problem-solving and in-depth consulting related to system operations. You will be tasked with automating installation methods and system imaging, employing tools such as Kickstart and Ansible. Your cryptographic experience will be essential in setting up a public key infrastructure (PKI) to manage digital certificates and public-key encryption effectively. Additionally, you will implement DISA STIG guidelines and work within Configuration-Managed Environments to enhance system security and compliance. Your responsibilities will also include analyzing, designing, and implementing modifications to system software to improve performance and rectify errors. You will plan new hardware acquisitions, interact with vendors, and collaborate with various projects within the organization. Working closely with engineers, you will assist them in utilizing workstations and servers to address computationally intensive problems. Furthermore, you will support application installation, license management, software tracking, and backup/recovery of system configurations and user data files. As a Linux Administrator, you will operate running systems, manage users and groups, and configure local storage and file systems. You will deploy, configure, and maintain systems, including software installation and updates, while managing security configurations such as firewalls and SELinux. Your role will also involve producing reports on system utilization and using shell scripting to automate maintenance tasks. Overall, you will play a crucial role in ensuring the reliability and efficiency of our Linux-based systems in a fast-paced research and development 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.
• Implement DISA STIG guidelines 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.
• Configure system logging, including remote logging.
• Configure a system to provide networking services, including HTTP/HTTPS, DNS, SMTP, SSH, and NTP.

Requirements

• Minimum three - six years' (3-6) experience in system administration of Linux-based servers and Linux-based workstations.
• Troubleshooting skills in RHEL 7/8/9 OS and basic knowledge of Networking fundamentals, specifically TCP/IP protocol suite and IP configuration.
• Working knowledge of security guidelines and policies (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.
• Specific experience with 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+).
• 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.

Nice-to-haves

• Experience with Service Now or similar Ticket Management system.
• Knowledge of / experience with Tenable suite of products (Security Center, Nessus Scanner, Nessus Agent).
• Knowledge of / experience with Single Sign on solutions such as RHSSO; Virtualization platform management systems such as VMWare / VSphere / Vcenter.