Top 130 Cybersecurity systems engineer Jobs in Loudoun County Va

Information Security Systems Engineer
L3Harris Technologies —Chantilly, VA
- $106,500 - $197,500 a year
- Full-time
- Bachelor's degree
- Senior level
- 4 years
- Paid holidays
- Disability insurance
Advanced Cybersecurity Systems Engineer
General Dynamics Mission Systems, Inc —Manassas, VA
- $124,216 - $137,803 a year
- Full-time
- Hybrid work
- 3 years
- Master's degree
- Analysis skills
- Paid parental leave
- Health insurance
13d
2026 Associate Cyber Systems Engineer - Chantilly VA
Northrop Grumman —Chantilly, VA
- $83,800 - $125,800 a year
- Overtime
- Computer Science
- Bachelor's degree
- Travel
- Paid holidays
- Disability insurance
5d
Staff Cyber Systems Engineer
Northrop Grumman —Chantilly, VA
- $194,700 - $243,400 a year
- Overtime
- Azure
- System design
- 11+ years
- Paid holidays
- Disability insurance
6d
Lead, Information Security Systems Engineering
L3Harris Technologies —Chantilly, VA
- $110,500 - $236,500 a year
- Full-time
- 6 years
- System design
- Bachelor's degree
- Paid holidays
- Disability insurance
Sr. Zero Trust Engineer III (6794)
MetroStar —Reston, VA
- $150,000 - $190,000 a year
- Full-time
- Computer Science
- 5 years
- DevOps
- Paid training
- Paid holidays
Quick Apply
Embedded Systems Reverse Engineer
Two Six Technologies —Reston, VA
- $111,983 - $167,974 a year
- Email
- Computer Science
- Mid-level
- Office
Quick Apply
4d
Cyber Security Systems Engineer - TS/SCI w/ POLY
Falls Technology —Chantilly, VA
- $175,000 - $220,000 a year
- Full-time
- Computer science
- Computer Science
- AWS
- Health insurance
- Paid time off
Quick Apply
Cyber Security Systems Engineer
Emergent Technologies Inc —Reston, VA
- Full-time
- Azure
- 11+ years
- AWS
- Dental insurance
- Paid time off
Quick Apply
Cybersecurity / Information Security Engineer
Evans & Chambers Technology —Chantilly, VA
- 6 years
- Bachelor of Science
- System design
Quick Apply
Information Systems Security Engineer-(TS/SC w/Poly)-Chantilly, VA
iSenpai —Chantilly, VA
- $130,000 - $155,000 a year
- 5 years
- System design
- Mid-level
- Health savings account
- Paid holidays
Quick Apply
Information Systems Security Engineer (ISSE)
VTG —Chantilly, VA
- Full-time
- System design
- 8 years
- Bachelor's degree
12d
Cybersecurity Systems Engineer
General Dynamics Mission Systems, Inc —Manassas, VA
- $99,916 - $110,844 a year
- Full-time
- Hybrid work
- Mid-level
- Master's degree
- Analysis skills
- Paid parental leave
- Health insurance
13d
Sr. Systems Engineer I (5051)
MetroStar —Reston, VA
- $92,000 - $120,000 a year
- Full-time
- Remote
- 5 years
- System design
- Research
- Paid training
- Paid holidays
Quick Apply
Space Systems Cybersecurity and Assessments Engineer
The Aerospace Corporation —Chantilly, VA
- $100,300 - $150,400 a year
- Full-time
- Azure
- Computer Science
- 5 years
- Paid holidays
- Relocation assistance
Information Systems Security Engineer
Fusion Innovation —Chantilly, VA
- $100,000 - $215,000 a year
- Full-time
- System design
- 8 years
- Bachelor's degree
- Health insurance
- Dental insurance
Quick Apply
Information Systems Security Engineer (ISSE)
BAE Systems Inc. —Sterling, VA
- $130,355 - $221,603 a year
- Full-time
- 5 years
- System design
- Windows
- Health savings account
- Paid holidays
13d
Systems Engineer (SoHo Devices)
Arcfield —Chantilly, VA
- $110,204.91 - $179,802.75 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Paid holidays
- Disability insurance
Systems Engineer (TD Support)
Arcfield —Chantilly, VA
- $110,204.91 - $179,802.75 a year
- Full-time
- Computer science
- Computer Science
- Bachelor of Science
- Paid holidays
- Disability insurance
Cyber Systems Engineer - TS/SCI CI Poly
Tenica and Associates LLC —Chantilly, VA
- Mid-level
- Bachelor's degree
- Organizational skills
Quick Apply

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Information Security Systems Engineer

L3Harris Technologies -
Chantilly, VA

Apply Now

Job Details

Full-time
$106,500 - $197,500 a year

Benefits

Paid holidays
Disability insurance
Health insurance
Flexible spending account
Paid time off
Parental leave
Employee assistance program
401(k) matching

Qualifications

Dashboard development
DevSecOps Practices
Test scanning software
Software engineering
Data center experience
Incident management
Engineering development testing
NIST SP 800-53
Threat Modeling (Architecture security)
TS/SCI
UML diagrams
Supply chain risk management
IT system monitoring
Software implementation
Dashboard creation support
Security architecture risk management
Security policy Implementation (information security management)
Special Access Program
Application deployment
Public Cloud
Database security management
Information security compliance
System design for system development
Nessus
Bachelor's degree
Design development
Incident management operations support
Security threat response protocols
FIPS
Splunk

Full Job Description

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: 38251

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:

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.
Must have active TS/SCI security clearance. Ability to obtain and maintain Special Access Program (SAP) clearance after hire is required.
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.

Apply Now

Refine Your Search

cybersecurity systems engineer jobs in loudoun county va

Information Security Systems Engineer

Advanced Cybersecurity Systems Engineer

2026 Associate Cyber Systems Engineer - Chantilly VA

Staff Cyber Systems Engineer

Lead, Information Security Systems Engineering

Sr. Zero Trust Engineer III (6794)

Embedded Systems Reverse Engineer

Cyber Security Systems Engineer - TS/SCI w/ POLY

Cyber Security Systems Engineer

Cybersecurity / Information Security Engineer

Information Systems Security Engineer-(TS/SC w/Poly)-Chantilly, VA

Information Systems Security Engineer (ISSE)

Cybersecurity Systems Engineer

Sr. Systems Engineer I (5051)

Space Systems Cybersecurity and Assessments Engineer

Information Systems Security Engineer

Information Systems Security Engineer (ISSE)

Systems Engineer (SoHo Devices)

Systems Engineer (TD Support)

Cyber Systems Engineer - TS/SCI CI Poly

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