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, AT&T, and CACI International. Find a role that fits below and apply directly.
Find JobsOverview
Open roles173+
Top employerVTG Defense
Work type100% On-site
Top credentialBachelor's degree
Companies hiring14
Showing 5 of 173+ Information Security Specialist jobs
Information Systems Security Engineer
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Added 5d ago
Markon
Information Systems Security Engineer
Chantilly, Virginia
Added 5d ago
Information Systems Security Engineer (ISSE)
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Added 6d ago
RDR, Inc.
Information Systems Security Engineer (ISSE)
Chantilly, Virginia
Added 6d ago
Information System Security Engineer
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Added 1w ago
MANTECH
Information System Security Engineer
Chantilly, Virginia
Added 1w ago
Information System Security Engineer (Government)
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Added 1w ago
AT&T
Information System Security Engineer (Government)
Chantilly, Virginia
Added 1w ago
Information System Security Officer (Government)
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Added 1w ago
AT&T
Information System Security Officer (Government)
Chantilly, Virginia
Added 1w ago
Added 5d ago
Information Systems Security Engineer
Markon·Chantilly, Virginia
Job functions:
$175k - $205k/yr
Master's degree
51-200 employees
Job Description
Description:
Desired:
The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Overview:
At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.
Join us and make a meaningful impact.
Markon is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
Markon is seeking an experienced Systems Engineer specializing in Information Systems Security Engineering (ISSE) and Data Engineering to support an Intelligence Community client in Chantilly, Virginia. This position will design, secure, integrate, and optimize mission-critical cloud and data solutions within classified environments, combining systems engineering principles, cybersecurity compliance, advanced analytics, and modern data engineering practices. The Systems Engineer will work across secure cloud architectures, ETL pipelines, graph databases, and AI/ML-supporting technologies to deliver scalable, compliant solutions aligned with mission requirements.
Responsibilities:- Lead Information Systems Security Engineering (ISSE) activities throughout the system lifecycle, including security architecture development, security control implementation, and compliance with NIST and Sponsor-specific requirements.
- Develop and maintain Assessment and Authorization (A&A) documentation supporting Authorization to Operate (ATO), including System Security Plans (SSPs), Plans of Action and Milestones (POA&Ms), test procedures, and continuous monitoring artifacts.
- Conduct security scans, vulnerability assessments, patch management, and remediation activities across classified cloud and on-premises environments.
- Integrate security-by-design principles into system architectures, data flows, ETL pipelines, and operational workflows.
- Design, develop, and optimize Extract, Transform, Load (ETL) pipelines supporting enterprise data integration, advanced analytics, and AI/ML initiatives.
- Develop and maintain Neo4j graph database solutions, including data modeling, relationship mapping, schema optimization, and Cypher query development.
- Clean, preprocess, analyze, and visualize medium-to-large datasets to support mission analysis and operational decision-making.
- Develop secure software components using technologies such as Cypher, Python, Java, and JavaScript.
- Perform technical and functional assessments, risk analysis, cost estimation, trade studies, and systems engineering evaluations.
- Support secure cloud architectures, virtualization technologies, and scalable data solutions within mission environments.
- Collaborate with systems engineers, developers, security teams, and mission stakeholders to ensure solutions meet technical, accreditation, and operational requirements.
- Participate in Agile development activities, including sprint planning, iterative development, and CI/CD processes.
- Maintain comprehensive documentation covering technical requirements, data models, engineering decisions, software components, and security compliance.
Required:
- Active TS/SCI clearance with Full Scope Polygraph (FSP).
- Bachelor's degree and at least 8 years of relevant experience, including 2 years of Sponsor experience; OR
- Master's degree and at least 6 years of relevant experience, including 2 years of Sponsor experience; OR
- PhD and at least 3 years of relevant experience, including 2 years of Sponsor experience.
- An additional 4 years of relevant experience may be considered in lieu of a degree.
- Demonstrated experience designing, securing, and maintaining data flow solutions within classified or high-security environments.
- Strong ISSE experience, including security architecture, A&A/ATO processes, vulnerability management, accreditation documentation, and continuous monitoring.
- Hands-on experience developing ETL pipelines, data models, activity models, and data engineering solutions supporting AI/ML initiatives.
- Proficiency in at least one programming language, such as Cypher, Python, Java, or JavaScript.
- Experience with graph database technologies, with Neo4j and Cypher expertise preferred.
- Experience cleaning, modeling, analyzing, and visualizing medium-to-large datasets.
- Experience supporting Sponsor mission systems or classified programs.
- Strong written and verbal communication skills with the ability to explain complex technical concepts to both technical and nontechnical stakeholders.
Desired:
Experience with enterprise data strategy, data governance, data stewardship, and metadata management.- Experience developing dashboards, technical visualizations, or system-level data representations.
- Exposure to AI/ML and large language model (LLM) systems, including associated data engineering workflows.
- Familiarity with Agile development methodologies and cloud-native architecture patterns.
- Hands-on experience with Neo4j graph databases and advanced Cypher query development.
The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Overview:
Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.
At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.
Join us and make a meaningful impact.
Markon is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
Markon
Information Systems Security Engineer
Chantilly, Virginia
Added 5d ago51-200 employees
Job functions:
$175k - $205k/yr
Master's degree
Job Description
Description:
Desired:
The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Overview:
At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.
Join us and make a meaningful impact.
Markon is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
Markon is seeking an experienced Systems Engineer specializing in Information Systems Security Engineering (ISSE) and Data Engineering to support an Intelligence Community client in Chantilly, Virginia. This position will design, secure, integrate, and optimize mission-critical cloud and data solutions within classified environments, combining systems engineering principles, cybersecurity compliance, advanced analytics, and modern data engineering practices. The Systems Engineer will work across secure cloud architectures, ETL pipelines, graph databases, and AI/ML-supporting technologies to deliver scalable, compliant solutions aligned with mission requirements.
Responsibilities:- Lead Information Systems Security Engineering (ISSE) activities throughout the system lifecycle, including security architecture development, security control implementation, and compliance with NIST and Sponsor-specific requirements.
- Develop and maintain Assessment and Authorization (A&A) documentation supporting Authorization to Operate (ATO), including System Security Plans (SSPs), Plans of Action and Milestones (POA&Ms), test procedures, and continuous monitoring artifacts.
- Conduct security scans, vulnerability assessments, patch management, and remediation activities across classified cloud and on-premises environments.
- Integrate security-by-design principles into system architectures, data flows, ETL pipelines, and operational workflows.
- Design, develop, and optimize Extract, Transform, Load (ETL) pipelines supporting enterprise data integration, advanced analytics, and AI/ML initiatives.
- Develop and maintain Neo4j graph database solutions, including data modeling, relationship mapping, schema optimization, and Cypher query development.
- Clean, preprocess, analyze, and visualize medium-to-large datasets to support mission analysis and operational decision-making.
- Develop secure software components using technologies such as Cypher, Python, Java, and JavaScript.
- Perform technical and functional assessments, risk analysis, cost estimation, trade studies, and systems engineering evaluations.
- Support secure cloud architectures, virtualization technologies, and scalable data solutions within mission environments.
- Collaborate with systems engineers, developers, security teams, and mission stakeholders to ensure solutions meet technical, accreditation, and operational requirements.
- Participate in Agile development activities, including sprint planning, iterative development, and CI/CD processes.
- Maintain comprehensive documentation covering technical requirements, data models, engineering decisions, software components, and security compliance.
Required:
- Active TS/SCI clearance with Full Scope Polygraph (FSP).
- Bachelor's degree and at least 8 years of relevant experience, including 2 years of Sponsor experience; OR
- Master's degree and at least 6 years of relevant experience, including 2 years of Sponsor experience; OR
- PhD and at least 3 years of relevant experience, including 2 years of Sponsor experience.
- An additional 4 years of relevant experience may be considered in lieu of a degree.
- Demonstrated experience designing, securing, and maintaining data flow solutions within classified or high-security environments.
- Strong ISSE experience, including security architecture, A&A/ATO processes, vulnerability management, accreditation documentation, and continuous monitoring.
- Hands-on experience developing ETL pipelines, data models, activity models, and data engineering solutions supporting AI/ML initiatives.
- Proficiency in at least one programming language, such as Cypher, Python, Java, or JavaScript.
- Experience with graph database technologies, with Neo4j and Cypher expertise preferred.
- Experience cleaning, modeling, analyzing, and visualizing medium-to-large datasets.
- Experience supporting Sponsor mission systems or classified programs.
- Strong written and verbal communication skills with the ability to explain complex technical concepts to both technical and nontechnical stakeholders.
Desired:
Experience with enterprise data strategy, data governance, data stewardship, and metadata management.- Experience developing dashboards, technical visualizations, or system-level data representations.
- Exposure to AI/ML and large language model (LLM) systems, including associated data engineering workflows.
- Familiarity with Agile development methodologies and cloud-native architecture patterns.
- Hands-on experience with Neo4j graph databases and advanced Cypher query development.
The Markon pay range for this position is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Overview:
Eager to join a team where your skills are valued, your growth is nurtured, and your impact is profound? Look no further than Markon, a premier consulting firm deeply dedicated to advancing our nation's most critical missions.
At Markon, we don't just offer jobs – we offer opportunities for personal and professional transformation. Empowering our employees to lead, innovate, and excel, we foster an environment where new ideas are not just welcomed but celebrated. As a perennial Washington Post Top Workplace, we prioritize the well-being and success of our team members, ensuring they can bring their best selves to work.
Headquartered in Falls Church, Virginia, Markon has garnered national recognition for our unwavering dedication to excellence in serving the intelligence community, as well as federal civilian and defense agencies. Our growing reach extends across 17 states, 116 countries, and 5 continents, where our team of dynamic professionals collaborates to deliver unparalleled program and project management services.
Markon values people and the tremendous impact each individual can make – which is why we’re consistently recognized as one of the best places to work in federal government consulting. Here, you can help solve the nation’s most important challenges, surrounded by colleagues who help you grow, advance, and succeed. We are deeply dedicated to what matters – bringing out the best in each other to advance our clients’ missions.
Join us and make a meaningful impact.
Markon is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.
See All 173+ Information Security Specialist Jobs in Chantilly
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Find JobsInformation Security Specialist Job Market in Chantilly
Who's Hiring
- VTG Defense35
- AT&T21
- CACI International21
- Markon14
- MANTECH14
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, AT&T, and CACI International and others right now, based on current listings on Migrate Mate as of November 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 0% of information security specialist openings tied to Chantilly are remote or hybrid as of November 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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See All 173+ Information Security Specialist Jobs in Chantilly
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