RHEL Administrator

Maximus; Corridor North (MD); On-site; USD 80,000 - 110,000; Full time

Job summary

Maximus is seeking an experienced Linux System Administrator to join our Maryland-based team. The role focuses on administering and optimizing RHEL servers, implementing security controls, and ensuring 24/7 uptime with on-call rotations.

The position requires an Active Secret clearance, US citizenship, and 7+ years of Linux administration experience, with onsite work in Annapolis Junction, MD. Collaboration with cross-functional teams and automation with Ansible are key parts of the job.

Qualifications

• Active Secret clearance required.
• Must report onsite to Annapolis Junction, MD.
• 7+ years of Linux/Red Hat system administration experience required.
• US Citizenship is required per contract.
• Candidates must reside within a commutable distance for daily onsite work and on-call requirements.
• This contract supports 24x7x365 uptime and recall readiness.

Responsibilities

• Administer, support, and optimize RHEL-based server infrastructure (RHEL 7.x/8.x/9.x).
• Perform daily system administration tasks: user management, permissions, file systems, and network config.
• Monitor and tune system performance; resolve bottlenecks for reliability and efficiency.
• Execute backup, restore, and disaster recovery operations to maintain high availability.
• Assess, implement, and maintain hardware/software solutions to meet requirements.
• Develop and update documentation for configurations, processes, and troubleshooting.
• Conduct vulnerability assessments using Tenable and other platforms; remediate as needed.
• Investigate security incidents, design mitigations, and implement proactive security measures.
• Apply DISA STIGs and mitigate KEVs to ensure compliance and security.
• Automate tasks with Ansible, Bash, Python and other tools to improve operations.
• Collaborate with network, storage, application, and security teams for integrated solutions.
• Provide guidance for system integration, migrations, and upgrades.

Skills

Linux Admin

Ansible

Python

Bash

Security Tools

Tenable

Disaster Recovery

Tools

Ansible

Bash scripting

Python

Tenable

DISA STIGs

Job description

Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS218, T2, Band 5Job-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 .#techjobs #clearance #veteransPage #APPCASTDTOMinimum RequirementsTCS218, T2, Band 5EEO StatementMaximus 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 TransparencyMaximus 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.AccommodationsMaximus 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] .Minimum Salary$80,000.00Maximum Salary$110,000.00