System Administrator, Senior

Booz Allen Hamilton; Columbia (MD); On-site; USD 78,000 - 176,000; Full time

Job summary

Booz Allen Hamilton is seeking a Senior System Administrator to design, deploy, and maintain Cross Domain Solutions for a DoD-focused enterprise environment. You will optimize security, stability, and performance while ensuring compliance with security controls and DoD requirements.

As a Linux-focused administrator, you will mentor teammates, translate metrics into actionable insights, and drive network modernization to meet critical mission needs.

Qualifications

• 3+ years of experience with Red Hat Enterprise Linux or CentOS.
• Experience with Git.
• Experience managing virtual machines and VMware ESXi.
• Knowledge of Linux firewalls, Linux RPMs, networking configuration, and DNS.
• TS/SCI clearance with a polygraph.
• Bachelor's degree.
• Ability to obtain DoD 8570.1 IAT Level II Compliant Certification within 60 days of start date.

Responsibilities

• Design, deploy, and maintain Cross Domain Solutions for an enterprise environment.
• Improve platform security, stability, and reliability while complying with security controls.
• Monitor performance; turn metrics into insights and communicate them to customers.
• Lead and mentor the team; develop new methodologies and architectures for the network.

Skills

Red Hat Enterprise Linux / CentOS

Git

Linux networking

DNS

TS/SCI clearance

IAT Level II prep

Education

Bachelor's degree

Tools

Salt

Ansible

Puppet

Terraform

PowerShell

Chef

Job description

System Administrator, Senior

The Opportunity

Your technical expertise makes you the team hero, solving one problem after another. What if you could use those skills to improve the technology supporting the Department of Defense? We’re looking for a System Administrator to help us design, deploy, and maintain Cross Domain Solutions for an enterprise environment that supports critical cybersecurity mission customers.

As a Linux System Administrator on our project, you’ll constantly look for ways to make the infrastructure better using the latest technology and the best implementation strategies. You’ll recommend technologies and approaches to improve platform security, stability, and reliability and comply with security controls. You'll recommend improvements and architecture changes to dramatically improve speed and performance. You’ll provide your customers with insight into their network through monitoring and performance management. Your technical expertise will be vital as you identify problem areas and opportunities for improvement in a mission critical network. You’ll help your team better understand the network by turning metrics into information and explaining their meaning. We focus on growing as a team, so you’ll share your expertise through leadership and mentoring as you help the team work through challenges and develop new methodologies. As a technical leader, you’ll identify new opportunities to modernize the network to help your customers meet their needs. Join our team and solve daily challenges as we improve cross domain. Join us. The world can’t wait.

You Have

• 3+ years of experience with Red Hat Enterprise Linux or CentOS


• Experience with Git


• Experience managing virtual machines and VMware ESXi


• Knowledge of Linux firewalls, Linux RPMs, networking configuration, and DNS


• TS/SCI clearance with a polygraph


• Bachelor's degree


• Ability to obtain DoD 8570.1 IAT Level II Compliant Certification within 60 days of start date

Nice If You Have

• Experience with AWS


• Experience managing systems using Infrastructure-as-Code technologies, including Salt, Ansible, Puppet, PowerShell, Chef, or Terraform


• Experience with Python


• Experience with Apache NiFi or NiagraFiles


• Knowledge of bi-directional network transfer systems


• 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

• 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.

About Booz Allen

Booz Allen is an advanced technology company. We build commercial-grade products and solutions for America’s most critical defense, civil, and national security priorities.

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.

Know Your Rights Poster Accommodations

Applicants who need a reasonable accommodation for any part of the application, hiring, or employment process because of a disability, a sincerely held religious belief, practice, or observance, or as otherwise required by applicable law should contact the Booz Allen Help Desk by calling 1-877-927-8278 or sending an email to [e-mail]. We will review requests on an individualized basis and provide reasonable accommodations consistent with applicable law.

Data Privacy

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