Top 3327 Network Security Engineer Jobs in Springfield, VA

FireEye/Gigamon Cybersecurity Engineer
22nd Century Technologies, Inc. —McLean, VA
- $130,000 - $150,000 a year
- Full-time
- Background check
- Computer science
- Computer Science
- Health insurance
- Dental insurance
Quick Apply
7d
RMF Security Engineer - ACTIVE SECRET Required
Cornerstone Technology —Alexandria, VA
- $115,000 - $124,000 a year
- Full-time
- Hybrid work
- 5 years
- Office
- Senior level
- Health savings account
- Health insurance
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8d
Network Security Engineer
AHU Technologies Inc —Washington, DC
- $46 - $51 an hour
- Full-time
- System design
- Senior level
Quick Apply
Network Security Engineer (Multiple Levels)
Noblis —Washington, DC
- $105,100 - $198,575 a year
- Full-time
- Remote
- System design
- 3 years
- Master's degree
- Health insurance
- Tuition reimbursement
Cybersecurity Admin
Saliense Consulting LLC —McLean, VA
- Full-time
- Remote
- 5 years
- Senior level
- Health insurance
- Dental insurance
Quick Apply
Network Engineer
Lateral Insights LLC —Great Falls, VA
- Full-time
- Hybrid work
- Mid-level
- 3 years
- Analysis skills
Quick Apply
Network Engineer
U.S. Court of Federal Claims —Washington, DC
- $81,906 - $158,334 a year
- Mid-level
Network Engineer
Integral —Tysons Corner, VA
- Full-time
- Bachelor of Science
- Bachelor's degree
- Senior level
- Paid parental leave
- Paid holidays
Network Engineer
Koniag Government Services —Arlington, VA
- $120,000 - $160,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Mid-level
- Paid holidays
- Health insurance
13d
Network Engineer
U.S. Courts —Washington, DC
- $81,906 - $158,334 a year
- Email
- Background check
- Customer service
- Pass drug screening
- Paid parental leave
- Paid holidays
Lead Cyber Security Engineer (Remote)
CareFirst BlueCross BlueShield —Reston, VA
- $122,400 - $243,100 a year
- Online Application
- Remote
- Computer Science
- Bachelor's degree
- Team management
- 401(k)
Quick Apply
Junior Network Engineer
BayNova LLC —Alexandria, VA
- Weekends as needed
- Hybrid work
- Mid-level
- Scripting
Quick Apply
Vulnerability Management Engineer
CACI —National Harbor, MD
- $103,800 - $218,100 a year
- Full-time
- 7 years
- Bachelor of Science
- Analysis skills
- Health insurance
Cybersecurity Analysts
Dark Wolf Solutions —Herndon, VA
- $100,000 - $145,000 a year
- Full-time
- Hybrid work
- Computer science
- Microsoft Excel
- Azure
Engineer 1 - Tysons, VA
M.C. Dean, Inc —Tysons, VA
- $75,520 - $113,280 a year
- Full-time
- Computer science
- Computer Science
- Research
- Paid parental leave
- Disability insurance
Cybersecurity Analyst I
AMERICAN SYSTEMS —Manassas, VA
- $85,000 - $110,000 a year
- Full-time
- Azure
- Mid-level
- AWS
- Retirement plan
Cyber Security Engineer
Trinity Global Consulting —Springfield, VA
- Full-time
- 5 years
- Java
- Databases
- AD&D insurance
- Paid holidays
Quick Apply
Junior Security Network Engineer (NWSC IHD Code 104)
EHS TECHNOLOGIES CORPORATION —Indian Head, MD
- Computer Science
- Mid-level
- Bachelor's degree
Quick Apply
Information Assurance Security Engineer
D2 Technical Services —Springfield, VA
- Computer science
- Computer Science
- System design
- Disability insurance
- Health insurance
Quick Apply
Network Engineer – VDI Security / Network Infrastructure
Staffed4U —Chantilly, VA
- Full-time
- Windows
- Scripting
- Senior level
- Profit sharing
- Paid training
Quick Apply
3d

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FireEye/Gigamon Cybersecurity Engineer

22nd Century Technologies, Inc. -
McLean, VA

Quick Apply

Job Details

Full-time
$130,000 - $150,000 a year
7 days ago

Benefits

Health insurance
Dental insurance
401(k)
Vision insurance

Qualifications

Teamwork
Computer Science
IT system monitoring
Secret Clearance
Windows
Network infrastructure
Cisco routers/switches implementation
Bachelor's degree
Wireshark
Splunk
Log analysis tools
SolarWinds
Active Directory management
Information Technology
IT security monitoring

Full Job Description

Duration: 5 years

Shift Schedule: May include after-hours maintenance windows and on-call rotation

Requested Clearance: Active DoD Secret Clearance Required

Work Environment: Supports the DCMA Enterprise Network Support Services (ENSS) program protecting over 200,000 users and millions of enterprise devices across global DoD networks. Position requires collaboration with Cybersecurity, NOC, Network Engineering, Firewall, Collaboration, and RMF teams in a mission-critical environment.

Travel: Up to 10% CONUS/OCONUS as required.

Shift Support: May include after-hours maintenance windows and on-call rotation.

Position Overview: The FireEye / Gigamon Cybersecurity Engineer provides engineering, administration, monitoring, and operational support for the Defense Contract Management Agency (DCMA) Enterprise Security Architecture. This position is responsible for deploying, managing, and optimizing FireEye/Trellix security platforms and Gigamon visibility solutions to enhance threat detection, network observability, incident response, and cybersecurity operations across DCMA enterprise environments. The engineer works closely with Network Operations Center (NOC), Cybersecurity Operations, RMF, ACAS, SIEM, Firewall, and Network Engineering teams to ensure continuous monitoring, threat visibility, and protection of enterprise networks supporting CONUS and OCONUS users.FireEye Helix was designed to unify network, endpoint, and third-party security visibility while integrating threat intelligence and automated security operations capabilities.Gigamon provides deep observability and network-derived intelligence by delivering optimized traffic to security and monitoring tools, eliminating network blind spots and improving threat detection.

Primary Responsibilities:

FireEye/Trellix Operations:

Administer and maintain FireEye/Trellix security platforms, including: FireEye Network Security (NX), FireEye Email Security (EX), FireEye Endpoint Security (HX), FireEye Helix SIEM/XDR, FireEye Central Management System (CMS)
Monitor and analyze security events, malware detections, indicators of compromise (IOCs), and advanced persistent threats (APTs).
Develop correlation rules, threat-hunting use cases, dashboards, and automated response workflows.
Integrate FireEye solutions with: LogRhythm SIEM, ACAS, CheckPoint Firewalls, Cisco Security Platforms, Active Directory and Threat Intelligence feeds.
Conduct incident response activities and forensic investigations utilizing FireEye and Mandiant intelligence resources.
Support Cybersecurity Service Provider (CSSP) operations and enterprise security monitoring.

Gigamon Visibility Fabric Operations:

Engineer and administer Gigamon visibility solutions, including: GigaVUE Appliances, GigaSMART, GigaVUE Fabric Manager and Deep Observability Pipeline.
Configure TAPs, packet brokers, traffic aggregation, filtering, deduplication, and SSL/TLS decryption services.
Design and maintain traffic distribution policies supporting: FireEye/Trellix, LogRhythm, ACAS, IDS/IPS, Network Performance Monitoring tools.
Optimize east-west and north-south traffic visibility across: Data Centers, Cloud Environments, Virtualized Infrastructure, Hybrid Networks.
Perform packet analysis and troubleshooting using: Wireshark, TCPDump, Gigamon Analytics.
Gigamon solutions provide traffic intelligence, packet optimization, metadata generation, filtering, and visibility across hybrid cloud and enterprise environments.

Cybersecurity Engineering:

Develop and implement security architecture improvements.
Support RMF security controls and continuous monitoring activities.
Conduct vulnerability assessments and remediation validation.
Support STIG compliance initiatives.
Participate in Change Management and Configuration Control Boards (CCB).
Create engineering documentation, SOPs, implementation guides, and technical reports.
Provide Tier III escalation support for cybersecurity incidents.

Monitoring and Reporting:

Provide 24x7x365 operational support as required.
Generate daily, weekly, and monthly cybersecurity status reports.
Brief government leadership on: Security incidents, Threat trends, Visibility gaps, Risk mitigation actions and Compliance posture.

Required Qualifications:

Active DoD Secret Clearance.
Bachelor's degree in Cybersecurity, Information Technology, Computer Science, or related field (or equivalent experience).
Minimum 5 years of cybersecurity engineering experience.
Minimum 3 years supporting enterprise security monitoring platforms.
Experience with: FireEye/Trellix products, Gigamon Visibility Fabric, LogRhythm SIEM, Cisco enterprise networking, Palo Alto or Check Point firewalls, Windows Server and Active Directory & Packet capture and analysis tools.

Preferred Qualifications:

FireEye/Trellix Certifications
Gigamon Certified Professional (GCP)
CISSP
CASP+
CCNP Security
GCIA
GCIH
CEH

Desired Knowledge & Skills:

Advanced Persistent Threat (APT) detection
Threat Hunting
Network Traffic Analysis
Incident Response
Malware Analysis
Security Automation
SIEM Engineering
IDS/IPS Technologies
Packet Broker Technologies
Network Forensics
Cloud Security Monitoring
Zero Trust Architecture
RMF and NIST 800-53 Controls

Tools & Technologies:

FireEye Helix / Trellix XDR
FireEye HX, NX, EX
Gigamon GigaVUE
GigaSMART
GigaVUE-FM
LogRhythm SIEM
ACAS
SolarWinds
Wireshark
CheckPoint Firewalls
Cisco Routers and Switches
VMware
Active Directory
Splunk (desired

LI_TSC

About our Company: -

22nd Century Technologies, Inc., is one of the fastest growing IT Service Integrator and Workforce Solution companies in the United States. Founded in 1997, 22nd Century Technologies is a Certified National Minority Business Enterprise with 6,000+ people including 600+ Cyber SMEs nationwide supporting our customers in all 50 states, Canada, and Mexico. With HQs in Somerset, NJ and Mclean, VA, 22nd Century has 14 offices throughout the United States. As part of our unrelenting focus on quality and compliance, 22nd Century Technologies’ delivery is based on Certified Matured Processes including CMMI L3 Dev & SVC, ISO 20000, ISO 27001, and ISO 9001 quality processes. With a strong focus on the public sector, 22nd Century currently holds government contracts with 14 out of 15 Federal Executive agencies including DoD, 37 other Federal agencies, 50 States, 115+ Local agencies, and 37 School Districts. In the last three years, we have expanded our services to Fortune 500 and other commercial clients and currently support 80+ commercial clients.

Recognized among “Best Company to Work For” by Forbes, 22nd Century Technologies, Inc., consistently exceeds our clients’ expectations by focusing on their absolute satisfaction with jobs while keeping our employees motivated.

“22nd Century Technologies is an Equal Opportunity Employer" and “US Citizens & all other parties authorized to work in the US are encouraged to apply."

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or protected veteran status.

Pay: $130,000.00 - $150,000.00 per year

Benefits:

401(k)
Dental insurance
Health insurance
Vision insurance

Education:

Bachelor's (Required)

Experience:

HX, NX, EX, Helix/XDR & CMS: 5 years (Required)
FireEye/Trellix platforms: 5 years (Required)
Gigamon Visibility Fabric: 5 years (Required)

Security clearance:

Secret (Required)

Work Location: In person

Quick Apply

Refine Your Search

Network Security Engineer jobs in Springfield, VA

FireEye/Gigamon Cybersecurity Engineer

RMF Security Engineer - ACTIVE SECRET Required

Network Security Engineer

Network Security Engineer (Multiple Levels)

Cybersecurity Admin

Network Engineer

Network Engineer

Network Engineer

Network Engineer

Network Engineer

Lead Cyber Security Engineer (Remote)

Junior Network Engineer

Vulnerability Management Engineer

Cybersecurity Analysts

Engineer 1 - Tysons, VA

Cybersecurity Analyst I

Cyber Security Engineer

Junior Security Network Engineer (NWSC IHD Code 104)

Information Assurance Security Engineer

Network Engineer – VDI Security / Network Infrastructure

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