RHEL Administrator

Maximus; Annapolis (MD); On-site; USD 90,000 - 130,000; Full time

Job summary

Maximus seeks an accomplished Red Hat Enterprise Linux Administrator to manage and optimize the RHEL infrastructure for a federal client. The role involves system administration, configuration, troubleshooting, and ensuring security, stability, and performance of the RHEL environment.

An active Secret clearance is required, and onsite reporting to Annapolis Junction, MD is expected. Key duties include patch management, backup/DR, vulnerability assessments, DISA STIGs, and automation using

Qualifications

• 7+ years of experience as a system admin on Linux or Red Hat systems.
• Active Secret clearance is required.
• U.S. Citizens only due to contract requirements.
• On-site presence required in Annapolis Junction, MD.

Responsibilities

• Administer RHEL-based server infrastructure (RHEL 7.x/8.x/9.x) including installs, upgrades, and patch management.
• Perform daily system administration tasks (user management, permissions, file systems, network config).
• Monitor and tune system performance and address bottlenecks for reliability.
• Execute backup, restore and disaster recovery operations to ensure high availability.

Skills

RHEL

System administration

Security best practices

On-call readiness

Ansible

Tools

Ansible Automation Platform

Tenable

HP WebInspect

DISA STIGs

Job description

Maximus is seeking an accomplished Red Hat Enterprise Linux Administrator to provide expertise in managing and optimizing assets for our federal client's critical operations. As a Red Hat Enterprise Linux Admin, you will be responsible for managing and maintaining the RHEL infrastructure. Your role will involve overseeing system administration, configuration, troubleshooting, and ensuring the stability, security, and performance of the RHEL environment.

This position requires an active Secret clearance.

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS218, T2, Band 5

Job-Specific Essential Duties and Responsibilities:

• Administer, support, and optimize RHEL-based server infrastructure (RHEL 7.x/8.x/9.x), including installation, configuration, upgrades, and patch management.
• Perform daily system administration tasks such as user management, permissions, file systems, and network configuration.
• Monitor, analyze, and tune system performance; identify and resolve bottlenecks to ensure reliability and efficiency.
• Execute backup, restore, and disaster recovery operations to safeguard data and maintain high availability.
• Assess, recommend, and implement hardware and software solutions to meet evolving business and technical requirements.
• Develop, maintain, and update documentation for system configurations, processes, and troubleshooting procedures.
• Conduct vulnerability assessments and remediation using tools such as Tenable, HP WebInspect, and other industry-standard platforms.
• Investigate security incidents, assess risks, and design mitigation strategies; implement proactive and reactive security measures.
• Manage and apply DISA STIGs and mitigate KEVs (Known Exploitable Vulnerabilities) to ensure compliance and security.
• Automate routine tasks and system management using Ansible Automation Platform (AAP), scripting languages (Bash, Python, etc.), and other tools to improve operational efficiency.
• Collaborate with cross-functional teams (network, storage, application, and security) to support integrated solutions and resolve complex issues.
• Provide technical guidance and support for system integration, migrations, and upgrades.

Job-Specific Minimum Requirements:

• Active Secret clearance.
• Must be able to report onsite to Annapolis Junction, MD.
• Due to contract requirements, only US Citizens can be considered.
• 7+ years of experience working as a system admin on Linux or Red Hat systems is required; related experience is acceptable.
• Candidates must reside within a commutable distance for daily onsite work and on-call requirements.
• This contract supports systems that require 24x7x365 uptime. Candidates must be willing and able to meet recall requirements, including participation in a rotational on-call schedule.

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TCS218, T2, Band 5

EEO Statement

Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics.

Pay Transparency

Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Annual salary is just one component of Maximus's total compensation package. Other rewards may include short- and long-term incentives as well as program-specific awards. Additionally, Maximus provides a variety of benefits to employees, including health insurance coverage, life and disability insurance, a retirement savings plan, paid holidays and paid time off. Compensation ranges may differ based on contract value but will be commensurate with job duties and relevant work experience. An applicant's salary history will not be used in determining compensation. Maximus will comply with regulatory minimum wage rates and exempt salary thresholds in all instances.

Accommodations

Maximus provides reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment. If you require assistance at any stage of the employment process—including accessing job postings, completing assessments, or participating in interviews,—please contact People Operations at [e-mail] .