Security Engineer Jobs in Chantilly, VA
Security Engineer jobs in Chantilly, Virginia are concentrated in the defense and intelligence corridor along Route 28 and surrounding the Dulles Tech Center, driven by federal contracting, cybersecurity, and cloud infrastructure demand. Employers hiring right now include VTG Defense, CACI International, and MANTECH. Scan the live roles below and apply to whichever ones fit.
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MANTECH seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA.
This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network infrastructures across classified and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems.
Responsibilities include but are not limited to:
- Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services
- Manage and maintain appliances, applications, servers, and supporting infrastructure in both classified and unclassified environments
- Coordinate with the network service provider to develop and maintain network architecture diagrams
- Evaluate and recommend changes and/or technology upgrades to address performance, standardization, and industry best practices
- Monitor and investigate C2C performance and faults and recommend improvements
- Interact with other team members and customers at multiple levels to gather, supply, or coordinate information
- Support Assessment and Authorization activities related to cybersecurity technologies, where applicable
Minimum Qualifications:
- Bachelor’s degree or 4+ years of additional cyber experience in lieu of degree
- 5+ years of cyber experience
- Experience with technologies involved in large-scale enterprise network deployments and data centers
- Experience deploying and/or supporting enterprise security software products such as firewalls, IPS, anti-virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems
- Knowledge of Windows and Linux systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts
- IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security) or ability to obtain within 6 months of hire
Preferred Qualifications:
- Experience implementing and using complex software products involving multiple integrated components
- Real-time, enterprise-level C2C expertise including vendor-agnostic services, open-source trends, and proficiency in DoD integration, engineering, and sustainment processes
- Experience with Cisco Identity Services Engine (ISE)
- Experience with tools such as Nmap, Nessus, and tcpdump
Clearance Requirements:
- Must have a current/active TS/SCI with Polygraph
Physical Requirements:
- The person in this position must be able to remain in a stationary position 50% of the time
- Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, and/or virtual communication, which may involve delivering presentations
MANTECH seeks a motivated, career and customer-oriented Senior Cyber Security Engineer to join our team in Chantilly, VA.
This role supports the Comply-to-Connect (C2C) mission by engineering and sustaining secure network infrastructures across classified and unclassified environments. You will work alongside cyber experts to develop solutions that enhance network compliance and security posture across DoD systems.
Responsibilities include but are not limited to:
- Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services
- Manage and maintain appliances, applications, servers, and supporting infrastructure in both classified and unclassified environments
- Coordinate with the network service provider to develop and maintain network architecture diagrams
- Evaluate and recommend changes and/or technology upgrades to address performance, standardization, and industry best practices
- Monitor and investigate C2C performance and faults and recommend improvements
- Interact with other team members and customers at multiple levels to gather, supply, or coordinate information
- Support Assessment and Authorization activities related to cybersecurity technologies, where applicable
Minimum Qualifications:
- Bachelor’s degree or 4+ years of additional cyber experience in lieu of degree
- 5+ years of cyber experience
- Experience with technologies involved in large-scale enterprise network deployments and data centers
- Experience deploying and/or supporting enterprise security software products such as firewalls, IPS, anti-virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems
- Knowledge of Windows and Linux systems, general operating system security practices, TCP/IP networking, 802.1x, and network security concepts
- IAT Level II certification (GSEC, Security+, SSCP, or CCNA-Security) or ability to obtain within 6 months of hire
Preferred Qualifications:
- Experience implementing and using complex software products involving multiple integrated components
- Real-time, enterprise-level C2C expertise including vendor-agnostic services, open-source trends, and proficiency in DoD integration, engineering, and sustainment processes
- Experience with Cisco Identity Services Engine (ISE)
- Experience with tools such as Nmap, Nessus, and tcpdump
Clearance Requirements:
- Must have a current/active TS/SCI with Polygraph
Physical Requirements:
- The person in this position must be able to remain in a stationary position 50% of the time
- Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers via email, phone, and/or virtual communication, which may involve delivering presentations
See All 29 Security Engineer Jobs in Chantilly
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Find Security Engineer JobsSecurity Engineer Job Market in Chantilly
Who's Hiring
- VTG Defense6
- CACI International4
- MANTECH3
- Peraton3
- J5 Consulting2J
Top Industries Hiring
- Technology & Software2
- Government & Public Sector1
- Consulting & Professional Services1
Security Engineer Jobs in Chantilly: Frequently Asked Questions
How do I get a security engineer job in Chantilly?
Focus your search on the federal contracting and defense technology firms clustered along the Route 28 corridor and near Dulles International Airport. Clearance-eligible candidates have a distinct edge here, as many Chantilly employers require active Secret or Top Secret clearances for security engineering roles. Targeting mid-size government contractors and intelligence-community integrators gives you the best odds in this market.
Which companies hire security engineers in Chantilly?
Employers hiring security engineers in Chantilly right now include VTG Defense, CACI International, and MANTECH, based on current listings on Migrate Mate as of July 2026. The local market is dominated by defense primes, federal IT contractors, and intelligence-focused technology firms that support government agencies in and around Northern Virginia.
Are there remote security engineer jobs in Chantilly?
Yes, though roles tied to classified systems or on-site federal facilities are predominantly on-site. About 17% of security engineer openings tied to Chantilly are remote or hybrid as of July 2026, reflecting flexibility mainly in commercial cybersecurity and cloud security positions. Roles supporting unclassified commercial clients tend to offer the most remote flexibility in this market.
How can I get a security engineer job in Chantilly with little or no experience?
The most realistic entry path in Chantilly is through junior security analyst or IT support roles at smaller federal contractors, which often develop talent internally toward engineering responsibilities. Obtaining a security clearance early, even at the Secret level, significantly expands which Chantilly employers will consider you. Entry-level helpdesk, network operations, and SOC analyst positions at local contractors are common stepping stones into security engineering here.
Which industries hire the most security engineers in Chantilly?
Most security engineer openings in Chantilly sit in Technology & Software, Government & Public Sector, and Consulting & Professional Services, per current listings on Migrate Mate as of July 2026. Chantilly's proximity to federal agencies, intelligence community campuses, and Dulles-area technology parks makes it a hub for defense, cybersecurity services, and government IT contracting that consistently drives local hiring.
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