Top 999 Site System Administrator Jobs in Reston, VA

Senior System Administrator
CGI Group, Inc. —Washington, DC
- 6 years
- Senior level
- Leadership
4d
Project Operations Administrator | Herndon, VA | Bohler
Bohler —Herndon, VA
- Full-time
- Civil engineering
- Mid-level
- Office
- Paid parental leave
- Paid holidays
System Administrator
Anduril Industries —Reston, VA
- $112,000 - $149,000 a year
- Email
- 5 years
- Scripting
- Senior level
Quick Apply
System Administrator
teKnoluxion —Reston, VA
- $113,000 - $125,000 a year
- Full-time
- Microsoft Outlook
- 5 years
- Mid-level
- Disability insurance
- Health insurance
12d
System Administrator
Pathoras Old Boggart —Chantilly, VA
- Full-time
- Computer science
- Computer Science
- 5 years
Azure System Administrator -61920
Syneren Technologies Corporation —Alexandria, VA
- Extended hours
- Computer science
- Computer Science
- 5 years
Quick Apply
Systems Administrator
Abile Group, Inc. —Reston, VA
- Full-time
- Microsoft Outlook
- 5 years
- Mid-level
LPN Needed-School Transport/Part time
PS2G —Washington, DC
- $30 - $35 an hour
- Temporary
- CPR Certification
- Management
- Medication administration
- Health insurance
- Dental insurance
Quick Apply
Senior Business Analyst (Salesforce/Fonteva)
American Retirement Association —Arlington, VA
- $110,000 - $115,000 a year
- Full-time
- Hybrid work
- PMP
- Salesforce
- 3 years
- Profit sharing
- Health savings account
Quick Apply
Manager, Diversion Services
EVERYMIND INC —Rockville, MD
- $71,000 - $83,000 a year
- Weekends as needed
- Office
- 3 years
- Ability to climb stairs
- Disability insurance
- Health insurance
Platform DevSecOps Engineer (US citizen/Secret Clearance Required)
IvoryCloud —Rockville, MD
- $155,000 - $185,000 a year
- Full-time
- Hybrid work
- Computer Science
- System design
- Research
- Health insurance
- Dental insurance
Quick Apply
9d
Nurse Supervisor - Infusion
Soleo Health Inc —Herndon, VA
- Weekends as needed
- Nursing
- RN License
- Internal Medicine
- Mileage reimbursement
- Paid parental leave
Quick Apply
Director of Technology
Pillar Construction Inc. —Alexandria, VA
- Computer science
- Computer Science
- Office
Quick Apply
9d
Senior Territory Account Manager
Biocon Biologics Limited —Washington, DC
- $140,000 - $160,000 a year
- Weekends as needed
- Background check
- 7 years
- Hospital
- Travel reimbursement
- Disability insurance
Quick Apply
Service Technician III
Confidential —Bethesda, MD
- $43 - $48 an hour
- Full-time
- Background check
- 7 years
- Customer service
Quick Apply
10d
Platform Operations Manager
Leidos —Bethesda, MD
- $154,050 - $278,475 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Flexible schedule
Virtualization Administrator VMware
Leidos —Fort Belvoir, VA
- $92,300 - $166,850 a year
- Full-time
- 6 years
- Bachelor of Science
- System design
DevOps Engineer
Leidos —Bethesda, MD
- $131,300 - $237,350 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Flexible schedule
13d
Lead Engineer for Navy Undersea Warfare C2
General Dynamics Mission Systems, Inc —Manassas, VA
- $156,965 - $174,134 a year
- Full-time
- 6 years
- Master's degree
- Senior level
- Paid parental leave
- Health insurance
DevOps Software Engineer - TS/SCI Cleared
Leidos —Bethesda, MD
- $107,900 - $195,050 a year
- Full-time
- Computer science
- Engineering
- 8 years
- Flexible schedule

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Senior System Administrator

CGI Group, Inc. -
Washington, DC

Apply Now

Job Details

4 days ago

Qualifications

Government information & network security
System administration
Technical documentation
Enterprise software
Operational management
IT system monitoring
System performance optimization
FISMA
Patch management
Vulnerability management
Application Maintenance
Systems & applications support
Access control management
System tuning
CompTIA Security+
Legal compliance
System performance monitoring

Full Job Description

.video-wrapper svg { top: 40%; }
U.S. - CGI Federal roles - Keeping Americans safe

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Position Description:
CGI Federal is seeking a Senior System Administrator to manage, secure, and maintain enterprise systems supporting federal operations. This role requires expertise in system configuration, patching, monitoring, troubleshooting, and lifecycle management. US Citizenship and the ability to obtain a Public Trust clearance are required.

Your future duties and responsibilities:
Serve as the O&M Lead, overseeing daytoday operations, scheduled maintenance, and lifecycle management activities across multiple enterprise environments.
Lead system maintenance and patching cycles, ensuring systems remain secure, compliant, and fully operational.
Manage system configurations, access controls, and security settings to maintain system availability and operational integrity.
Provide technical leadership to junior administrators and operational support staff, establishing best practices and ensuring repeatable, compliant processes.
Monitor enterprise systems for performance, capacity, and availability; identify and resolve system issues through rootcause analysis.
Support modernization initiatives, system upgrades, and integration efforts with engineering, cybersecurity, and application teams.
Maintain detailed system documentation, including configuration baselines, maintenance procedures, troubleshooting guides, and O&M artifacts.
Collaborate with cybersecurity teams to implement system hardening, vulnerability remediation, and RMFaligned security controls.
Support incident response, escalation handling, and corrective action planning to ensure operational continuity.

Required qualifications to be successful in this role:
Ability to obtain and maintain a Public Trust clearance.
Security+ certification (LCAT requirement).
Minimum 6+ years administering large or complex enterprise systems (LCAT requirement).
Proven experience in maintenance, patching, and O&M leadership roles for enterprise systems.
Strong understanding of system monitoring, troubleshooting, performance tuning, and operational best practices.
Experience with system hardening, access management, and compliance-driven environments.
Experience leading O&M teams or serving as a technical lead.
Familiarity with NIST, FISMA, and vulnerability management processes.
Strong communication and documentation skills.

What you can expect from us:
Together, as owners, lets turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, youll reach your full potential because

You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

Come join our teamone of the largest IT and business consulting services firms in the world.

Qualified applicants will receive consideration for employment without regard to their race, ethnicity, ancestry, color, sex, religion, creed, age, national origin, citizenship status, disability, pregnancy, medical condition, military and veteran status, marital status, sexual orientation or perceived sexual orientation, gender, gender identity, and gender expression, familial status or responsibilities, reproductive health decisions, political affiliation, genetic information, height, weight, or any other legally protected status or characteristics to the extent required by applicable federal, state, and/or local laws where we do business.

CGI provides reasonable accommodations to qualified individuals with disabilities. If you need an accommodation to apply for a job in the U.S., please email the CGI U.S. Employment Compliance mailbox at [email protected]. You will need to reference the Position ID of the position in which you are interested. Your message will be routed to the appropriate recruiter who will assist you. Please note, this email address is only to be used for those individuals who need an accommodation to apply for a job. Emails for any other reason or those that do not include a Position ID will not be returned.

We make it easy to translate military experience and skills! Click here to be directed to our site that is dedicated to veterans and transitioning service members.

All CGI offers of employment in the U.S. are contingent upon the ability to successfully complete a background investigation. Background investigation components can vary dependent upon specific assignment and/or level of US government security clearance held. Dependent upon role and/or federal government security clearance requirements, and in accordance with applicable laws, some background investigations may include a credit check. CGI will consider for employment qualified applicants with arrests and conviction records in accordance with all local regulations and ordinances.

CGI will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with CGIs legal duty to furnish information.

Apply Now

Refine Your Search

Site System Administrator jobs in Reston, VA

Senior System Administrator

Project Operations Administrator | Herndon, VA | Bohler

System Administrator

System Administrator

System Administrator

Azure System Administrator -61920

Systems Administrator

LPN Needed-School Transport/Part time

Senior Business Analyst (Salesforce/Fonteva)

Manager, Diversion Services

Platform DevSecOps Engineer (US citizen/Secret Clearance Required)

Nurse Supervisor - Infusion

Director of Technology

Senior Territory Account Manager

Service Technician III

Platform Operations Manager

Virtualization Administrator VMware

DevOps Engineer

Lead Engineer for Navy Undersea Warfare C2

DevOps Software Engineer - TS/SCI Cleared

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