System Administrator (Linux & Fidelis Administration)

System Administrator (Linux & Fidelis Administration)

Location: Reston, VA

Required Clearance: TS/SCI CI Poly

Employment Type: Full-Time Regular

Shift: Day

Travel: No

Relocation Assistance: Yes (Up to $7,500)
Company Description

We are Ennoble First. The people supporting and securing some of the most complex government, defense, and intelligence projects across the country. We ensure today is safe and tomorrow is smarter. Our work has meaning and impact on the world around us, but also on us, and that's important. Ennoble First is your place. You make it your own by embracing autonomy, seizing opportunity, and being trusted to deliver your best every day. We think. We act. We deliver. There is no challenge we can't turn into an opportunity.

Job Description

Ennoble First is seeking a Mid-Level System Administrator with Linux expertise and Fidelis administration experience to join our team. The selected candidate will work individually or within small integrated teams to develop secure and reliable solutions for enterprise computer systems. Responsibilities include systems administration of cyber tool sets, networked servers, and infrastructure across multiple classification domains. The role requires troubleshooting, system monitoring, operating system configuration, software management, and support of Linux and Windows environments.

Primary Responsibilities:

• Perform system administration of cyber toolsets and server systems supporting multi-domain environments.
• Install, configure, and manage Fidelis DLP & XPS appliances, including DirectSensor 10G, Mail DLP, and CommandPost.
• Analyze Fidelis system logs, security logs, and network events to ensure optimal performance and security compliance.
• Maintain, patch, and update Linux operating systems and applications.
• Support remote system administration via SSH and troubleshoot Linux OS updates and configurations.
• Assist with Fidelis training and maintain a minimum of 10+ hours of current Fidelis training (e.g., Udemy or Self-Paced training with completion certificates).
• Deploy, configure, and maintain cybersecurity monitoring tools within classified and unclassified environments.
• Provide troubleshooting support for server, storage, and network devices to ensure seamless system functionality.
• Assist with Configuration Management, software builds, and configuration audits to ensure system integrity.

Minimum Education/Experience Requirements:

• 3+ years of experience as a System Administrator.
• Experience installing/configuring security tools and applications, including Fidelis.
• Ability to analyze Fidelis system logs, troubleshoot stack/network issues, and maintain operational readiness.
• Hands-on experience operating and maintaining Linux servers, including updates, patches, and system optimization.
• Familiarity with Windows environments, including Active Directory, policy management, and system administration.
• High School Diploma/GED and 7+ years of experience, OR Associate's Degree and 5+ years of experience, OR Bachelor's Degree and 3+ years of experience.
• Active DoD 8570.01-M IAT Level II Certification (e.g., Security+ CE, CCNA-Security, GSEC, SSCP, CySA+, GICSP, or CND).
• Ability to obtain a DoD 8570.01-M CSSP - Infrastructure Support (IS) Certification (e.g., CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND) before start date.

Desired Skills:

• Experience managing Microsoft Windows and Linux environments.
• Previous experience as a SOC Analyst, Hunt Analyst, or DLP Analyst, with hands-on Fidelis DLP administration.
• Familiarity with DoD Risk Management Framework (RMF) requirements.
• Experience with automated deployments and configuration management.
• Knowledge of Active Directory Group Policy Management.
• Familiarity with Git, Atlassian tools (JIRA, Confluence), and Microsoft Visio.
• CSSP - Infrastructure Support (IS) Certification (CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND).

Why Join Ennoble First?

Ennoble First is committed to providing a diverse and inclusive work environment and is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Additional Information

• E-Verify: Ennoble First participates in E-Verify. Learn more at www.dhs.gov/E-Verify . E-Verify is a registered trademark of the U.S. Department of Homeland Security. This business uses E-Verify in its hiring practices to achieve a lawful workforce.
• Equal Opportunity Employer: EEO is the Law | Pay Transparency Nondiscrimination.

Join Ennoble First and make a difference while advancing your career!

Ennoble First is committed to providing a diverse and inclusive work environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.

Ennoble First participates in E-Verify.

The information below will be listed on our website's careers landing page.

EEO is the Law | Pay Transparency Nondiscrimination

www.dhs.gov/E-Verify

E-Verify is a registered trademark of the U.S. Department of Homeland Security. This business uses E-Verify in its hiring practices to achieve a lawful workforce.