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Senior Security Administrator Jobs in Reston, VA

Amentum

Security Administrator

Chantilly, VA · On-site

$31.25 - $40.86/hr

Our security administrators will provide a wide range of support functions that may include the ... Senior-7+ years of personnel security experience. * Must have an Active Top Secret US Government ...

Pae

Security Administrator

Chantilly, VA · On-site

$31.25 - $40.86/hr

Our security administrators will provide a wide range of support functions that may include the ... Senior-7+ years of personnel security experience. * Must have an Active Top Secret US Government ...

Pae

Security Administrator

Falls Church, VA · On-site

Security administrators will be assigned to a primary task team to include not limited to intake ... senior Preferred Qualifications: 3-5 years of relevant experience with a High School Diploma or ...

TENICA

Security Admin - TS/SCI CI Poly

Chantilly, VA · On-site

$125K - $145K/yr

Security Admin - TS/SCI CI Poly Chantilly, VA, US 7 days ago Requisition ID: 1095 Salary Range ... Jr to Sr level positions available * Bachelor's degree or equivalent experience (4years) * Must ...

FINRA

Senior Security Engineer

Rockville, MD · On-site

$116K - $160K/yr

The Senior Security Engineer works under minimal supervision to engineer, administer, and optimize security data pipeline and Zero Trust access platforms. Responsibilities include managing data ...

FINRA

Senior Security Engineer

Washington, DC · On-site

$129K - $177K/yr

The Senior Security Engineer works under minimal supervision to engineer, administer, and optimize security data pipeline and Zero Trust access platforms. Responsibilities include managing data ...

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Senior Security Administrator information

What does a senior security administrator do?

A Senior Security Administrator is responsible for managing and maintaining an organization's IT security infrastructure. Their main duties include monitoring security systems, responding to breaches, implementing security measures, and developing policies to protect sensitive data. They also conduct regular security assessments, ensure compliance with regulations, and guide junior staff on best practices. This role requires a strong understanding of network security, firewalls, intrusion detection systems, and cybersecurity protocols.

What are the key skills and qualifications needed to thrive as a senior security administrator?

To thrive as a Senior Security Administrator, you need advanced knowledge of cybersecurity principles, risk assessment, and network security, typically backed by a degree in computer science and relevant certifications like CISSP or CISM. Familiarity with security information and event management (SIEM) systems, firewalls, intrusion detection systems, and vulnerability assessment tools is crucial. Strong problem-solving, attention to detail, and effective communication skills help you identify threats and collaborate with other teams. These competencies are vital for safeguarding organizational assets, maintaining compliance, and ensuring a proactive security posture.

What are some common challenges senior security administrators face when managing enterprise security systems?

Senior Security Administrators often encounter challenges such as keeping up with rapidly evolving cyber threats, ensuring compliance with various regulations, and managing the complexity of multi-layered security infrastructures. They must coordinate with IT, compliance, and executive teams to implement best practices and respond to incidents swiftly. Balancing proactive security measures with user accessibility and business needs is also a frequent challenge, requiring both technical expertise and strong communication skills.

What is the difference between Senior Security Administrator vs Security Analyst?

AspectSenior Security AdministratorSecurity Analyst
CertificationsCompTIA Security+, CISSP, CISMCompTIA Security+, GIAC Security Essentials (GSEC)
Work EnvironmentManages security infrastructure, implements policies, oversees security teamsMonitors security systems, analyzes threats, responds to incidents
Employer & Industry UsageIT departments, cybersecurity firms, large organizationsIT security teams, cybersecurity consulting firms, government agencies

The Senior Security Administrator typically oversees security infrastructure and policies, requiring advanced certifications and leadership skills. In contrast, a Security Analyst focuses on monitoring, analyzing, and responding to security threats. Both roles are vital in cybersecurity but differ in responsibilities and scope.

What are popular job titles related to Senior Security Administrator jobs in Reston, VA?

For Senior Security Administrator jobs in Reston, VA, the most frequently searched job titles are:

What job categories do people searching Senior Security Administrator jobs in Reston, VA look for?

The top searched job categories for Senior Security Administrator jobs in Reston, VA are:

What cities near Reston, VA are hiring for Senior Security Administrator jobs?

Cities near Reston, VA with the most Senior Security Administrator job openings:

Senior Security Administrator jobs near you
Infographic showing various Senior Security Administrator job openings in Reston, VA as of September 2026, with employment types broken down into 83% Full Time, 15% Part Time, and 2% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution.

Security Administrator

Chantilly, VA • On-site

Amentum
Guided Missile and Space Vehicle Manufacturing • 10K+ employees
Learn more about Amentumexternal

$31.25 - $40.86/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 23 days ago

Job description

*This posting is part of our ongoing talent pipeline. While this position may not be immediately open, we are actively gathering interest for upcoming roles and future growth*
Are you an administrative professional seeking an opportunity in a new field? Are you considering a return to personnel security support or trusted workforce vetting? If you want to use your administrative experience in an environment that allows you to directly support national security, we have an opportunity for you!
Amentum is seeking security-minded individuals with attention to detail, strong communication and excellent customer service skills to join our team of security administrators providing support to personnel security vetting in a dynamic and challenging environment.
Our security administrators will provide a wide range of support functions that may include the following, depending on office assignment: customer service support, data entry, review of security clearance paperwork and relevant reports, redaction, file maintenance, filing, records management. Security administrators may perform other duties as assigned in support of personnel security processing and clearance vetting, to include review of reports and cases for completion. Security administrators should be detail orientated, able to balance multiple tasks and redirect as priorities change. Candidates should be comfortable learning to use new proprietary computers systems and spending the majority of the work day using computers to review and generate reports. Candidates should also be familiar with use of fax machines, scanners and multi-line phone systems.
All work will occur at a fixed customer location in the Washington Metropolitan Area (WMA) and work shifts will cover the program core hours of 9am-3pm Monday-Friday.
Security Administrators must have:
  • Excellent writing and communication, skills and good judgment
  • Demonstrated high level of personal integrity and the ability to discreetly handle sensitive, personal and classified case information
  • Ability to navigate and operate automated systems for case tracking and status reporting
  • Knowledge of the federal rules and regulations that govern personnel security
  • Knowledge and ability to use computer operating systems/tools such as Microsoft Office Suite
  • Strong time management
  • Ability to provide on-the-job training to teammates
  • Ability to adapt to changing work requirements and competing priorities
  • Broad experience working with personnel security policies and practices

Required Qualifications:
  • High School Diploma or GED
  • Developmental-minimum 1 year experience in a security related discipline.
  • Full Performance-3-5 years of administrative experience in a security related discipline.
  • Senior-7+ years of personnel security experience.
  • Must have an Active Top Secret US Government Clearance at time of application with the ability to obtain and maintain a polygraph. Note: US Citizenship is required to obtain a Top Secret Clearance.

Preferred Qualifications:
  • Prior experience supporting this customer
  • Bachelors degree in any discipline

#javelin
Compensation Details:
$31.25 - $40.86 hourly
The compensation range or hourly rate listed for this position is provided as a good-faith estimate of what the company intends to offer for this role at the time this posting was issued. Actual compensation may vary based on factors such as job responsibilities, education, experience, skills, internal equity, market data, applicable collective bargaining agreements, and relevant laws.
Benefits Overview:
Our health and welfare benefits are designed to support you and your priorities. Offerings include:
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance

Note: Benefits may vary based on employment type, location, and applicable agreements. Positions governed by a Collective Bargaining Agreement (CBA), the McNamara-O'Hara Service Contract Act (SCA), or other employment contracts may include different provisions/benefits.
Original Posting:
06/30/2026 - Until Filled
Amentum anticipates this job requisition will remain open for at least three days, with a closing date no earlier than three days after the original posting. This timeline may change based on business needs.
Amentum is proud to be an Equal Opportunity Employer. Our hiring practices provide equal opportunity for employment without regard to race, sex, sexual orientation, pregnancy (including pregnancy, childbirth, breastfeeding, or medical conditions related to pregnancy, childbirth, or breastfeeding), age, ancestry, United States military or veteran status, color, religion, creed, marital or domestic partner status, medical condition, genetic information, national origin, citizenship status, low-income status, or mental or physical disability so long as the essential functions of the job can be performed with or without reasonable accommodation, or any other protected category under federal, state, or local law. Learn more about your rights under Federal laws and supplemental language at Labor Laws Posters.

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