Information Security Specialist Jobs in Chantilly, VA
Information Security Specialist jobs in Chantilly, Virginia are concentrated in the Route 50 corridor, Westfields Business Park, and the Innovation technology cluster, driven by defense contractors, federal agencies, and managed security service providers. Employers hiring right now include VTG Defense, Cyber Defense Technologies, and AT&T. Find a role that fits below and apply directly.
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L3Harris is dedicated to recruiting and developing high-performing talent who are passionate about what they do. Our employees are unified in a shared dedication to our customers’ mission and quest for professional growth. L3Harris provides an inclusive, engaging environment designed to empower employees and promote work-life success. Fundamental to our culture is an unwavering focus on values, dedication to our communities, and commitment to excellence in everything we do.
L3Harris is the Trusted Disruptor in defense tech. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Job Title: Information Security Systems Engineer (ISSE)
Job Code: 44525
Job Location: Chantilly, VA
Job Schedule: 5/8 Monday - Friday
Job Description:
The successful candidate will support a highly motivated engineering team in defining, designing, implementing, documenting, testing and sustaining security solutions on National Security Systems, or other systems engineered for our government customers, using current standards within National Institute of Standards & Technology (NIST) Risk Management Framework, Special Publications 800-37, 800-53, 800-171, and other NIST publications; Committee on National Security Systems Instruction (CNNSI) 1253, Joint SAP Implementation Guide (JSIG), and Federal Information Processing Standards (FIPS) to certify and achieve system accreditations. The successful candidate will work with system developers or commercial product vendors in the design and evaluation of state-of-the-art secure systems, networks, and database products, using methods such as encryption technology, vulnerability analysis and security management.
Essential Functions:
Perform incident response cyber threat identification, incident response support, defensive cyber operations coordination, malware analysis, supply chain risk management assessments per NIST SP 800-161, vendor provenance, counterfeit detection- Exercise skills in NIST Risk Management Framework (RMF) and all related NIST publications, to include writing System Security Plans, Security Control Traceability Matrix, Continuous Monitoring Plan, Security Assessment Plans & Procedures, Security Concept of Operations, Plan of Action and Milestones
- Perform skills in implementing/assessing security controls, to include writing system security categorization memorandum, recommending appropriate security control overlays, define security control baseline based on defined system security categorization and approved security overlays, and apply security controls to computing/network nodes and verify implementation of security controls
- Assist in systems/software engineering functions, to include creation of data flow diagrams, interface control documents, perform trade studies, and Static Application Security Testing (SAST) for Application Security and Development Secure Technical Implementation Guide (STIG) compliance using tools such as Fortify/Coverity and Gitlab as part of a DevSecOps Continuous Integration/Continuous Deployment (CI/CD) Pipeline, and generation of summary reports
- Define/manage systems/security architectures including system security boundaries, vulnerability management and risk mitigation and remediation strategies within networks, systems, applications and new technology initiatives (hardware, software, firewalls, intrusion detection systems, anti-virus systems and software deployment tools); and Infrastructure/Platform/Software-as-a-Service (IaaS/PaaS/Saas) implementations in cloud environments
- Define/manage systems/security architectures including system security boundaries in on-premises data center systems and ultimately deploy to secure cloud-based system, to include configuration and use of defense and assessment tools specific to each environment type
- This position is performed 100% onsite and cannot be performed remotely
Qualifications:
MUST have an active Top Secret/SCI security clearance with ability to obtain and maintain Special Access Program (SAP) clearance after hire- Bachelor’s Degree and a minimum of 6 years of prior relevant experience; Or, Graduate Degree and a minimum of 4 years of prior related experience; Or, in lieu of a degree, minimum of 10 years of prior related experience
- DoD 8140.03 Level 3 or 4 certification
Preferred Additional Skills:
Perform Model Based System Engineering (UML, SysML, UAF)- Confugure/operate vulnerability analysis tools such Tenable NESSUS Security products
- Develop dashboards, configure rules and operate/administer SEIM/audit reduction tools (e.g., Splunk)
In compliance with pay transparency requirements, the salary range for this role in Virginia state is $106,500-$197,500. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.
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L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.
Please be aware many of our positions require the ability to obtain a security clearance. Security clearances may only be granted to U.S. citizens. In addition, applicants who accept a conditional offer of employment may be subject to government security investigation(s) and must meet eligibility requirements for access to classified information.
By submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions.
L3Harris Technologies is an E-Verify Employer. Please click here for the E-Verify Poster in English or Spanish. For information regarding your Right To Work, please click here for English or Spanish.
See All 182+ Information Security Specialist Jobs in Chantilly
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Find JobsInformation Security Specialist Job Market in Chantilly
Who's Hiring
- VTG Defense42

- Cyber Defense Technologies21

- AT&T14

- MANTECH14

- CACI International14

Information Security Specialist Jobs in Chantilly: Frequently Asked Questions
How do I get a information security specialist job in Chantilly?
The strongest path in Chantilly is targeting defense contractors and federal IT services firms concentrated along the Route 50 corridor and in Westfields Business Park. These employers prioritize candidates with active security clearances, hands-on experience with NIST frameworks, and familiarity with government compliance standards. Certifications like CISSP, Security+, or CEH give applicants a measurable edge in this clearance-heavy, government-adjacent market.
Which companies hire information security specialists in Chantilly?
Chantilly information security specialist roles are posted by VTG Defense, Cyber Defense Technologies, and AT&T and others right now, based on current listings on Migrate Mate as of September 2026. The local employer base skews heavily toward defense contractors, cleared IT services firms, and federal consulting companies that support intelligence and national security missions.
Are there remote information security specialist jobs in Chantilly?
Yes, though availability varies since many Chantilly roles require on-site access to classified systems or government facilities. About 20% of information security specialist openings tied to Chantilly are remote or hybrid as of September 2026, with hybrid arrangements most common for policy, compliance, and risk analysis functions that do not involve classified networks.
How can I get a information security specialist job in Chantilly with little or no experience?
The most realistic entry path in Chantilly is landing a junior analyst or IT support role with a defense contractor or cleared staffing firm, then pursuing a security clearance and entry-level certifications like CompTIA Security+. Employers in the Westfields and Route 50 corridor frequently hire for helpdesk and junior SOC analyst positions that serve as direct stepping stones into dedicated information security specialist roles.
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