Top 87 Senior systems administrator Jobs in Ashburn, Va

Sr System Administrator
Pavion Corp. —Chantilly, VA
- $140,000 - $160,000 a year
- Remote
- Computer science
- Computer Science
- System design
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5d
Senior OneStream System Administrator
PenFed Credit Union —McLean, VA
- $84,700 - $179,451 a year
- Overtime
- Computer Science
- Office
- Finance
- Paid parental leave
- Disability insurance
14d
Senior Salesforce Administrator
WorkWave —Arlington, VA
- $115,000 - $130,000 a year
- Full-time
- Remote
- 5 years
- Analysis skills
- Continuous improvement
- Paid holidays
- Health insurance
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Senior Systems Engineer
Supernus Pharmaceuticals Inc —Rockville, MD
- $157,000 - $186,000 a year
- Hybrid work
- Computer science
- Azure
- Computer Science
- Health insurance
- Dental insurance
Senior Systems Infrastructure Engineer & Architect (Enterprise Mission Systems SME)
Virginia Tech Applied Research Corporation —Arlington, VA
- $200,000 - $275,000 a year
- Full-time
- Analysis skills
- Travel
- US work authorization
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Linux Systems Administrator - Senior
Lambentwit technologies —Springfield, VA
- $175,000 - $250,000 a year
- Full-time
- 6 years
- Bachelor's degree
- In-person
- Health savings account
- Health insurance
Quick Apply
12d
Fires Sr. Systems Engineer-Gagetown, New Brunswick, Canada
General Dynamics Information Technology —Chantilly, VA
- $111,155 - $150,385 a year
- Military
- Bachelor of Science
- System design
- Commuter assistance
- Paid time off
Senior Systems Engineer
Leidos —Bethesda, MD
- $131,300 - $237,350 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Flexible schedule
Senior Systems/ Infrastructure Engineer
Amentum —McLean, VA
- $140,000 - $160,000 a year
- Full-time
- 7 years
- Bachelor of Science
- System design
- Health savings account
- Health insurance
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Senior Systems Admin Specialist
General Dynamics Mission Systems, Inc —Herndon, VA
- $166,400 - $175,500 a year
- Full-time
- Computer science
- 6 years
- Computer Science
Senior Linux Systems Engineer
Veilant —Tysons, VA
- $155,100 - $196,500 a year
- Full-time
- Hybrid work
- DevOps
- Office
- Windows
- Health savings account
- Disability insurance
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Senior Systems Engineer (Hybrid)
CareFirst BlueCross BlueShield —Reston, VA
- $98,784 - $196,196 a year
- Online Application
- Computer Science
- System design
- Research
Senior IT Systems Administrator
Scout Space —Reston, VA
- $120,000 - $200,000 a year
- Hybrid work
- Azure
- Computer Science
- 5 years
- Commuter assistance
- Paid parental leave
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Systems Administrator Senior
F&A Technologies LLC —Herndon, VA
- 6 years
- Windows
- AWS
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Cloud Systems Administrator – Senior Linux / AWS Application Sustainment
Peraton —Herndon, VA
- $135,000 - $216,000 a year
- Weekends as needed
- Customer service
- 3 years
- Master's degree
- Health savings account
- Paid holidays
Senior Systems Administrator
Securiport —Reston, VA
- $90,000 - $115,000 a year
- Full-time
- Computer science
- 6 years
- Computer Science
Systems Engineer – Senior
Amentum —Vienna, VA
- $150,000 - $170,000 a year
- 8 hour shift
- Computer Science
- Engineering
- Pass drug screening
- Employee stock purchase plan
- Paid holidays
11d
Senior Systems Administrator (Cleared) - TEG
Kentro —Springfield, VA
- $190,000 - $195,000 a year
- Full-time
- System design
- Office
- SQL
- Health insurance
- Tuition reimbursement
Senior Windows Systems Administrator
Black Canyon Consulting —Bethesda, MD
- 5 years
- SQL
- AWS
- Paid holidays
- Health insurance
Sr. SharePoint Administrator
TechSur Solutions —Reston, VA
- Full-time
- Hybrid work
- Microsoft Outlook
- Bachelor of Science
- Mid-level
Quick Apply

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Sr System Administrator

Pavion Corp. -
Chantilly, VA

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Job Details

$140,000 - $160,000 a year
5 days ago

Qualifications

Cloud identity and access management (IAM)
Mobile device support
Network hardware support
Defect resolution root cause analysis
IT user and group management
High availability solutions design
Preventive action implementation
Improving system uptime or availability
Corrective and preventive actions (CAPA)
Scalable systems
Windows
Hyper-V
AWS
Technology management
Cloud service support
Telecommunications systems
Azure AD
Leading team collaboration initiatives
Scalability
VMware
Problem management
Windows support
Microsoft 365 support
Access control management
Cross-functional team management
Cross-functional communication
High availability
Failure analysis
Identity & access management
Managing tech infrastructure teams

Full Job Description

Pavion Connects and Protects by providing innovative fire, security, and communication integration solutions to customers across the globe. We bring industry-leading expertise to clients in enterprise, healthcare, education, government, data center, and retail industries. Global Reach. Local Service.

As a global leader, Pavion specializes in the design, installation, service, and maintenance of cutting-edge fire alarm systems, critical communications, video surveillance, access control, and advanced AV technologies. Our mission is to bring clarity and transformation to safety, security, and communication through integral technology and radical service.

With a commitment to safety, reliability, and operational excellence, Pavion ensures scalable, future-ready solutions tailored to meet and exceed our clients’ needs. Learn more at www.pavion.com (https://pavion.com/)

Pavion and our family of companies are seeking a talented and motivated Sr System Administrator to join our shared services team.

Primary Responsibilities:

Serve as a technical leader for enterprise infrastructure spanning Microsoft Azure, Microsoft 365, AWS, and core SaaS platforms.
Partner with cross-functional teams and business stakeholders to design solutions that scale and remain resilient under load.
Take charge during outages: direct response efforts, coordinate across teams, and communicate status clearly to stakeholders at all levels.
Lead root cause analysis following incidents and drive corrective actions to prevent recurrence.
Own and maintain high-availability infrastructure across multiple locations and cloud environments.
Lead infrastructure projects — implementations, migrations, upgrades, and acquisition integrations — from planning through execution.
Administer identity and access management platforms, including Active Directory, ADFS, and Microsoft Entra.
Support enterprise datacenter infrastructure including compute, storage, networking, and disaster recovery systems.
Act as a mentor and subject-matter expert, translating complex technical topics into clear, actionable guidance for both technical and non-technical audiences.
Develop and maintain infrastructure documentation, standards, and operational procedures.
Identify and champion opportunities for automation and process improvement.
Participate in 24x7 operational support as needed.

Basic Qualifications:

10+ years of progressive experience supporting enterprise IT infrastructure, with demonstrated leadership in incident response and cross-team coordination.
Proven experience operating and maintaining high-availability (HA) environments.
Extensive experience with Windows Server, Hyper-V, and VMware administration.
Experience with identity and access management platforms, including Active Directory, ADFS, and Microsoft Entra.
Experience managing Microsoft 365, Azure, and AWS environments.
Experience supporting enterprise networking and telecommunications systems.
Proven track record leading root cause analysis and driving preventive measures.
Strong verbal and written communication skills, with the ability to translate complex technical issues for varied audiences.
Demonstrated ability to build and maintain effective partnerships across teams to deliver scalable solutions.

Preferred Qualifications:

Bachelor's degree in Information Technology, Computer Science, Engineering, or related field, or equivalent work experience.
Experience administering Palo Alto Networks firewalls, including security policies, VPN connectivity, and threat prevention.
Experience deploying and supporting Cisco Meraki networking solutions.
Knowledge of network segmentation, zero trust principles, and enterprise security architecture.
Familiarity with mobile device management (Intune, MaaS360).
Exposure to compliance frameworks (e.g., HIPAA, SOC 2, NIST).

Pay Range- The salary range for this position is $140,000-160,000 annually. The starting salary will be determined based on qualifications, experience, education, skills, certifications, and internal equity. We also offer a comprehensive benefits package.

Disclaimer: This job description should not be construed to imply that these requirements are the exclusive standards of the position. Incumbents will follow any other instructions, and perform any other related duties, as may be required. The employer has the right to revise this job description at any time. The job description is not be construed as a contract for employment.

Pavion is an equal opportunity/affirmative action employer. All qualified applicants will receive consideration for employment without regard to sex, gender identity, sexual orientation, race, color, religion, national origin, disability, protected veteran status, age, or any other characteristic protected by law.

If you require accommodation or assistance during the application process, please contact us at [email protected] . Kindly note that resumes submitted to this email address will not be reviewed. Thank you for your understanding.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights (https://www.eeoc.gov/poster) notice from the Department of Labor.

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Refine Your Search

senior systems administrator jobs in ashburn, va

Sr System Administrator

Senior OneStream System Administrator

Senior Salesforce Administrator

Senior Systems Engineer

Senior Systems Infrastructure Engineer & Architect (Enterprise Mission Systems SME)

Linux Systems Administrator - Senior

Fires Sr. Systems Engineer-Gagetown, New Brunswick, Canada

Senior Systems Engineer

Senior Systems/ Infrastructure Engineer

Senior Systems Admin Specialist

Senior Linux Systems Engineer

Senior Systems Engineer (Hybrid)

Senior IT Systems Administrator

Systems Administrator Senior

Cloud Systems Administrator – Senior Linux / AWS Application Sustainment

Senior Systems Administrator

Systems Engineer – Senior

Senior Systems Administrator (Cleared) - TEG

Senior Windows Systems Administrator

Sr. SharePoint Administrator

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