Linux System Administrator, Senior
Bah· enterprise· Defense· Jul 20, 2026 · 3mo agoPosted 99 days ago
Annapolis Junction, MD
In office
Full-time
Senior
$78K–$176K
5+ years exp
Before you apply
Ghost Signal:
Open since July 20, 2026 — 99 days, and still accepting applications.
Job description
Linux System Administrator, Senior The Opportunity:
Install systems on dedicated infrastructure, ensure the infrastructure is functional and available, and update and patch critical systems. Provide customers with insight into their network through monitoring and performance management. Identify problem areas and opportunities for improvement in a mission-critical network. Accomplish work without considerable direction.
Join us. The world can t wait.
You Have:
5 years of experience with systems administration
Experience with Red Hat Enterprise Linux or CentOS
Experience with managing virtual machines and VMware ESXi
Knowledge of Linux iptables, networking configuration, and DNS
TS/SCI clearance with a polygraph
HS diploma or GED
Ability to obtain DoD 8570.1 IAT Level II Compliant Certification within 60 days of start date
Nice If You Have:
Experience with AWS DevOps, Cloud Formation
Experience with Infrastructure as Code ( IaC ) , such as SaltStack or Ansible
Experience with Python, YAML, or JSON
DoD 8570.1 IAT Level II Compliant Certification
Clearance :
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance with polygraph is required.
Compensation
At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.
Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $77,600.00 to $176,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees. This posting will close within 90 days from the Posting Date.
Identity Statement
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during interviews and assessments. We reserve the right to take your picture to verify your identity and prevent fraud.
Candidate AI Usage Policy
AI is a part of our daily work at Booz Allen, and we are committed to the responsible and ethical use of AI tools. However, we want to ensure a fair candidate process based on your own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) or other tools to assist with responses during interviews (whether in-person or virtual) is prohibited unless permission is explicitly provided .
Work Model
Our people-first culture prioritizes the benefits of collaboration, whether it occurs in person or virtually. To support engagement and effective communication, employees working virtually are generally expected to have their cameras on during meetings.
Remote : If this position is listed as remote, there may still be occasions when you are required to work in person at a Booz Allen or customer facility.
Hybrid : If this position is listed as hybrid, you will be expected to work from a Booz Allen facility frequently, in alignment with leadership expectations and the needs of the role. You may also be required to work from or visit a customer facility.
Onsite : If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Commitment to Non-Discrimination
All qualified applicants will receive consideration for employment without regard to disability, status as a protected veteran or any other status protected by applicable federal, state, local, or international law.
Application prep
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Keywords to mirror
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Benefits
Benefits detected in the listing.
Professional Development