Linux System Administrator

Dobbs Defense Solutions; Fort Meade (MD); On-site; USD 90,000 - 120,000; Full time

Job summary

Dobbs Defense Solutions seeks a Linux System Administrator to support Fort Meade DoD lab environments by administering and securing RHEL systems. You will work with Government personnel on classified networks, implement STIGs, and coordinate with Windows/AD domain services as needed.

Ideal candidates have 5+ years of Linux experience on RHEL 9, 3–5 years in VMware 6.7 and ACAS, and hold an active security certification. On-site role requiring Active Secret clearance and a strong security posture.

Qualifications

• 5+ years Linux administration experience, specifically on RHEL 9.
• 3–5 years VMware 6.7, DNS, IPv6, and Windows/AD in enterprise environments.
• 3–5 years ACAS experience with Security Center and remediation.

Responsibilities

• Install, configure, secure, and troubleshoot RHEL systems.
• Manage YUM servers and internal package repositories.
• Apply DISA STIGs, run SCAP scans, and implement remediations.
• Conduct ACAS/Nessus vulnerability scans and support patching.
• Support DNS and IPv6 configuration; cross-platform with Windows/AD.
• Operate systems on SIPR and other classified networks per DoD security requirements.

Skills

RHEL 9

VMware 6.7

DNS & IPv6

Windows/AD

Education

Active security certification

Tools

ACAS/SCAP

Job description

Our Mission

At Dobbs Defense, we deliver mission-centric IT, Cyber, and data analytics solutions for our government and commercial clients through the convergence of automation, innovation, training, and education. Delivering high-quality IT, cybersecurity, and data analytics solutions through proven and innovative methods is our vision.

Job Description

Dobbs Defense Solutions is seeking a Linux System Administrator to providetechnicalsupporttotheFortGeorgeG.Meade.TheroleincludesadministeringandsecuringRHELsystems inaclassifiedDoDlab,supportingtestenvironments,andworkingdirectlywithGovernmentpersonneland missioncustomers.

Duties

• Install, configure, secure, and troubleshoot Red Hat Enterprise Linux (RHEL) systems.
• Manage and maintain YUM servers and internal package repositories.
• Apply DISA STIGs, run SCAP scans, and implement remediations.
• Conduct ACAS/Nessus vulnerability scans and support RHEL patching and compliance.
• Provide limited support for DNS and IPv6 configuration.
• Perform basic administration within VMware 6.7 environments.
• Support cross platform coordination with Windows Server 2016, Active Directory, and domain services.
• Operate systems on SIPR and other classified networks while adhering to all DoD security requirements.

Qualifications: Required Education and Experience:

• 5+ years of hands-on Linux administration experience, specifically with RHEL 9
• 3–5 years of VMware 6.7, DNS, IPv6, and Windows/AD experiencein enterprise environments
• 3–5 years of ACAS experience, including Security Center and vulnerability remediation
• At least one active certification (e.g., Security+, CISSP, CISM, CASP, or equivalent)

Working Environment

On Site

Required Clearance

Active Secret

Our Equal Employment Opportunity Policy

Dobbs Defense Solutions is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth or breastfeeding), sexual orientation, gender or gender identity (except where gender is a bona fide occupational qualification), gender expression and transgender status, national origin, ancestry, age, disability, military or veteran status, marital or domestic partner status, genetic information, citizenship, low-income status or any other status or characteristic protected by applicable law. We are committed to equal employment opportunity in all decisions related to employment, promotion, wages, benefits, and all other privileges, terms, and conditions of employment.

Salary Range

Pay range information will be disclosed consistent with applicable state and local pay transparency laws once available. For this position, the anticipated salary range will depend on experience, qualifications, and overall fit for the role.