Linux System Administrator

We have an outstanding career opportunity for a Linux System Administrator to join a leading Company located in the Annapolis Junction, MD surrounding area.

Salary: 90,000.00-140,000.00 per year

**US Citizenship is required.**

**Candidate must possess an Active Top Secret/SCI Security Clearance with Full scope polygraph with NSA.**

Seeking a skilled Linux System Administrator to support enterprise infrastructure in a secure, high-performance environment. This role is ideal for a hands-on professional with experience managing Linux systems, enterprise storage, and backup solutions while maintaining strong security and compliance standards. You will play a key role in ensuring system reliability, supporting vulnerability management efforts, and driving continuous improvements across infrastructure operations.

Job Responsibilities:

• Administer, maintain, and optimize Linux-based systems in a production environment.
• Manage IBM Enterprise Storage solutions to ensure availability, performance, and data integrity.
• Configure, monitor, and troubleshoot Veritas NetBackup for enterprise backup and recovery operations.
• Perform system patching and package management using YUM repositories.
• Execute and remediate vulnerability scans using Nessus, ensuring alignment with security requirements.
• Implement and maintain system security configurations, including system hardening and policy enforcement.
• Support STE/STIN-related processes and security frameworks.
• Monitor system performance, troubleshoot issues, and implement proactive improvements.
• Collaborate with engineering, security, and infrastructure teams to support upgrades, audits, and incident response.
• Maintain clear and accurate documentation for system configurations, procedures, and compliance activities.

Basic Hiring Criteria:

• Bachelor's degree in Computer Science, Information Technology, or related field (or equivalent experience).
• 3+ years of hands-on Linux system administration experience (RHEL, CentOS, or similar).
• Experience with enterprise storage (IBM), backup solutions (Veritas NetBackup), and vulnerability management tools (e.g., Nessus).
• Strong knowledge of Linux patching (YUM), system hardening, security best practices, and scripting (Bash, Python, or similar).

Desired Qualifications:

• RHCSA or similar Linux certification.
• Experience in high-availability or mission-critical environments.
• Familiarity with automation tools such as Ansible or Puppet.
• Exposure to cloud or hybrid infrastructure environments.

Benefits offered vary by contract. Depending on your temporary assignment, benefits may include direct deposit, free career counseling services, 401(k), select paid holidays, short-term disability insurance, skills training, employee referral bonus, and affordable medical coverage plan, and DailyPay (in some locations). For a full description of benefits available to you, be sure to talk with your recruiter.

Job Requirements

Minimum Security Clearance:


Top Secret/SCI

Military connected talent encouraged to apply.

VEVRAA Federal Contractor / Request Priority Protected Veteran Referrals / Equal Opportunity Employer / Veterans / Disabled

To read our Candidate Privacy Information Statement, which explains how we will use your information, please visit or

The Company will consider qualified applicants with arrest and conviction records in accordance with federal, state, and local laws and/or security clearance requirements, including, as applicable:

• The California Fair Chance Act
• Los Angeles City Fair Chance Ordinance
• Los Angeles County Fair Chance Ordinance for Employers
• San Francisco Fair Chance Ordinance