Red Hat Engineer​/Linux Administrator

Modus
21, LLC is a Charleston, South Carolina based small business and technology consulting firm specializing in solving complex business problems for global business and government clients. Our philosophy is simple – deliver quality through high performance to our clients; provide value to our clients through the ability to streamline, measure, and improve their business processes via business intelligence and business architecture;

and practice professional integrity by being trustworthy and reliable. Our expertise has proven highly successful in helping organizations recognize greater value by aligning their strategy and objectives to technology and execution.

Scope of Work: The Naval Information Warfare Center Atlantic (NIWC LANT) Cloud Computing Innovation, Transformation, and Integration (CLOUD CITI) Division is tasked with providing hosting environments and platforms for Navy applications, as well as other DoD and Homeland Security (HLS) applications utilizing both Component Enterprise Data Centers (CEDCs) and Commercial Cloud Service Providers (CSPs) as hosting platforms. As part of this program, Modus
21 is seeking a Junior Red Hat Engineer / Linux Administrator to support the administration, maintenance, and operation of Red Hat Enterprise Linux server environments. This role is intended for a new professional or early career candidate who has foundational knowledge of Linux systems and is interested in growing their skills in enterprise infrastructure, automation, cybersecurity, and cloud environments.

The selected candidate will work as part of a team of experienced Linux, Unix, cloud, cybersecurity, and infrastructure engineers supporting shared services, multi-tiered applications, and mission systems. The role will provide hands‑on exposure to RHEL 8/9 server platforms, system administration, patching, monitoring, troubleshooting, documentation, automation, and security compliance activities.

The ideal candidate should have a strong technical foundation, a willingness to learn, good communication skills, and the ability to work collaboratively in a multi‑functional team environment. Experience with Red Hat, Linux command line administration, scripting, virtualization, automation tools, AWS, or cybersecurity practices is helpful but not required.

Red Hat certifications such as RHCSA or RHCE are preferred but not required.

• Assist with routine administration and maintenance of Linux server platforms, including installation, configuration, patching, updates, and basic troubleshooting.
• Support system monitoring activities and help identify server, application, or performance issues.
• Assist senior engineers with troubleshooting issues in preproduction and production environments.
• Support security hardening activities and assist with vulnerability scans, audit preparation, and remediation efforts.
• Work with infrastructure, cybersecurity, application, network, and storage teams to support system operations.
• Assist with the development or maintenance of scripts and automation to reduce manual tasks.
• Support documentation updates, including system lifecycle documentation, standard operating procedures, and technical guides.
• Participate in testing and validation of new tools, system configurations, and cloud‑based solutions.
• Learn and apply enterprise IT best practices related to Linux administration, automation, monitoring, and security compliance.
• Escalate technical issues appropriately and work under the guidance of senior team members.

• Foundational knowledge of Linux or Unix operating systems, preferably Red Hat Enterprise Linux 8/9.
• Familiarity with using the Linux command line interface.
• Basic understanding of networking concepts and the OSI model.
• Familiarity with common Linux text editors such as vim, nano, or similar tools.
• Basic understanding of system administration concepts such as user accounts, permissions, file systems, services, logs, and patching.
• Familiarity with version control concepts or tools such as Git.
• Basic understanding of cybersecurity principles and secure system administration practices.
• Strong written and verbal communication skills.
• Ability to…