Senior Information Security Analyst Jobs in Chantilly, VA
Senior Information Security Analyst jobs in Chantilly, Virginia are concentrated in the Westfields Business Park corridor, the Route 28 technology belt, and the Dulles South commercial zone, where defense contractors, intelligence community support firms, and federal IT services providers drive steady demand. Employers actively hiring include VTG Defense, Cyber Defense Technologies, and AT&T. See the openings below and apply to the ones that match your experience.
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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.
#LI-CG1
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.
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Find JobsSenior Information Security Analyst Job Market in Chantilly
Who's Hiring
- VTG Defense41

- Cyber Defense Technologies21

- AT&T14

- MANTECH14

- CACI International14

Senior Information Security Analyst Jobs in Chantilly: Frequently Asked Questions
How do I get a senior information security analyst job in Chantilly?
The strongest path into Chantilly's market is through defense contracting and federal IT support firms, which dominate hiring along the Route 28 and Westfields corridors. Candidates with active security clearances, experience with NIST frameworks, and familiarity with federal compliance requirements like FedRAMP or FISMA move fastest through hiring pipelines here. Tailoring your resume to contract-vehicle and program-specific requirements gives a meaningful edge over generalist applicants.
Which companies hire senior information security analysts in Chantilly?
Companies currently hiring senior information security analysts in Chantilly include VTG Defense, Cyber Defense Technologies, and AT&T, per current listings on Migrate Mate as of September 2026. Chantilly's employer base skews heavily toward defense contractors, intelligence support firms, and federal managed-service providers clustered around Dulles and the Westfields Business Park.
Are there remote senior information security analyst jobs in Chantilly?
Yes, though availability is moderate given that many Chantilly roles involve classified environments or on-site government facilities that require physical presence. About 20% of senior information security analyst openings tied to Chantilly are remote or hybrid as of September 2026, largely in commercial cybersecurity and non-classified IT governance roles. Policy, risk assessment, and compliance-focused positions are the most likely to offer flexible or remote arrangements locally.
How can I get a senior information security analyst job in Chantilly with little or no experience?
The most realistic entry path in Chantilly is through junior analyst or security operations center roles at the area's many defense contractors and federal IT firms, which routinely hire clearance-eligible candidates at entry level and promote from within. Pursuing a CompTIA Security+ certification, applying for internships or co-ops with Westfields-area government contractors, and obtaining even an interim Secret clearance significantly expands the number of doors open to you locally.
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