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Booz Allen

System Administrator, Senior

Salary$78k – $176k
LocationWashington, DC
Typefull-time
SenioritySenior
Experience8+ yrs
Company size10,000+ people
PostedSep 29, 2026 · 1w ago
Verified live3h ago
At a glanceSummarised by Seekless from the posting.
Must have8
8+ years of experience in a system administration or network administration role
8+ years of experience providing Tiers I and II support for Windows-based systems
Experience with managed database systems such as Oracle or Postgres
Knowledge of workflows required to install, configure, administer, manage, or maintain network infrastructure including routers, switches, firewalls, Windows physical and virtual server environments, or operating systems
Ability to maintain documentation of system configurations and procedures, and provide reports on system performance, incidents, and maintenance activities
Active TS/SCI clearance; willingness to take a polygraph exam
Bachelor's degree and 10+ years of experience in Systems or Network Administration, or Master's degree and 8+ years of experience in Systems or Network Administration
IAT Level 2 Certification or higher
Nice to have9
Experience as a Systems Administrator in the Department of War or intelligence community
Experience with cloud computing, digital security, and SQL
Experience coordinating across multiple IT organizations across echelons, both internal and external, to complete complex coordination or troubleshooting tasks
Experience using structured troubleshooting frameworks or ticketing systems, such as Jira, Kanban, or Microsoft Office365, to document issues, complete root case analysis, and build a local knowledge base for the team
Knowledge of systems security procedures and compliance measures, including maintaining and reviewing audit files, and adhering to government policies and industry standards
Ability to assist in planning and executing IT projects, such as system upgrades, migrations, or new technology deployments
Possession of problem-solving and communication skills to interact effectively with both technical and non-technical users and collaborate across multiple teams and external entities
Certified Information Systems Security Professional (CISSP), CompTIA Network+, Cisco Certified Network Associate (CCNA), or Cisco Certified Network Professional (CCNP) Certification
Information Technology Infrastructure Library (ITIL) Certification
Eligibility3
Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; TS/SCI clearance is required
We will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence
Use of artificial intelligence (AI) or other tools to assist with responses during interviews is prohibited unless permission is explicitly provided
Skills
Windows
Oracle
Postgres
Jira
Kanban
Microsoft Office365
SQL
network infrastructure
routers
switches
firewalls
cloud computing
digital security
Benefits
Health insurance
Life insurance
Disability insurance
Retirement benefits
Paid leave
Professional development
Tuition assistance
Work life programs
Dependent care
System Administrator, Senior
The Opportunity:
Your combination of people skills and system administrator 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 War? We’re looking for a system administrator who specializes in enterprise-level system and network administration and managing secure, multi-domain environments to help our customer deploy and maintain mission-critical IT infrastructure, strengthen their cybersecurity posture, and enhance the readiness of technology systems.
Responsibilities
As a system administrator on our project, you’ll ensure the current infrastructure is functional and available and implement the best strategies for updating and patching critical systems. You’ll be responsible for managing the infrastructure, architecture, security, and performance of our customer’s systems and environments. You’ll provide your customers insight into their network through monitoring and performance management.
Your system administrator 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.
This is an opportunity to broaden your skillset into areas like risk management and project management applications and methodologies. 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 systems administrator leader, you’ll identify new opportunities to modernize the network, so your clients achieve their goals. Work with us and resolve daily challenges as we improve the reliability, security, and performance of our customer’s systems and environments.
Join us. The world can’t wait.
You Have:
•
8+ years of experience in a system administration or network administration role
•
8+ years of experience providing Tiers I and II support for Windows‑based systems such as user account and permissions or access control management, printer and device connectivity, basic workstation and network troubleshooting, system log analysis and error resolution, performance remediation, imaging and re-imaging, system and endpoint updates, or configuration changes
•
Experience with managed database systems such as Oracle or Postgres
•
Knowledge of workflows required to install, configure, administer, manage, or maintain network infrastructure including routers, switches, firewalls, Windows physical and virtual server environments, or operating systems
•
Ability to maintain documentation of system configurations and procedures, and provide reports on system performance, incidents, and maintenance activities
•
Active TS/SCI clearance; willingness to take a polygraph exam
•
Bachelor’s degree and 10+ years of experience in Systems or Network Administration, or Master’s degree and 8+ years of experience in Systems or Network Administration
•
IAT Level 2 Certification or higher
Nice If You Have:
•
Experience as a Systems Administrator in the Department of War or intelligence community
•
Experience with cloud computing, digital security, and SQL
•
Experience coordinating across multiple IT organizations across echelons, both internal and external, to complete complex coordination or troubleshooting tasks
•
Experience using structured troubleshooting frameworks or ticketing systems, such as Jira, Kanban, or Microsoft Office365, to document issues, complete root case analysis, and build a local knowledge base for the team
•
Knowledge of systems security procedures and compliance measures, including maintaining and reviewing audit files, and adhering to government policies and industry standards
•
Ability to assist in planning and executing IT projects, such as system upgrades, migrations, or new technology deployments
•
Possession of problem-solving and communication skills to interact effectively with both technical and non-technical users and collaborate across multiple teams and external entities
•
Certified Information Systems Security Professional (CISSP), CompTIA Network+, Cisco Certified Network Associate (CCNA), or Cisco Certified Network Professional (CCNP) Certification
•
Information Technology Infrastructure Library (ITIL) 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 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. 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 or customer facility, in alignment with your leadership’s expectations and the needs of the role.
•
Onsite: If this position is listed as onsite, work will primarily be performed full-time at a 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.
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