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Principal Cyber Engineer

MANTECH

Chantilly, Virginia • Today

Full-time

Principal Cyber Mobile CNO Engineer

Nightwing

Sterling, Virginia • Today

Full-time

USD 99,000.00 - 206,000.00 per year

Senior Principal Cyber Mobile CNO Engineer

Nightwing

Sterling, Virginia • Today

Full-time

USD 122,000.00 - 253,000.00 per year

Principal Cyber Software Engineer (iOS)

Nightwing

Sterling, Virginia • Today

Full-time

USD 99,000.00 - 206,000.00 per year

Senior Principal Cyber Software Engineer (iOS)

Nightwing

Sterling, Virginia • Today

Full-time

USD 122,000.00 - 253,000.00 per year

Principal Cyber Solutions Architect

SixGen, Inc.

Sterling, Virginia • Today

Full-time

DevSecOps Engineer Principal - Cyber

SAIC

Arlington, Virginia • Today

Full-time

USD 160,001.00 - 200,000.00 per year

Principal Cyber Systems Engineer, SME (TS/SCI Required)

Praescient Analytics

Arlington, Virginia • Today

Full-time

USD 120,000.00 - 165,000.00 per year

Principal Cyber Systems Engineer

SPA

Washington, District of Columbia • Today

Full-time

USD 135,000.00 per year

Principal Cyber Security Engineer

MANTECH

Chantilly, Virginia • Today

Full-time

Senior Principal Cyber Security Engineer

MANTECH

Chantilly, Virginia • Today

Full-time

Principal Cybersecurity Engineer

The MITRE Corporation

McLean, Virginia • Today

Full-time

USD 172,800.00 - 216,000.00 per year

Principal Software Engineer

Apogee Research

Arlington, Virginia • Today

Full-time

Principal Algorithm & Signal Processing Engineer

STR

Arlington, Virginia • Today

Full-time

USD 206,000.00 - 284,000.00 per year

Principal Software Engineer

Recorded Future

Washington, District of Columbia • Today

Full-time

USD 152,000.00 - 228,500.00 per year

Principal Digital Electrical Engineer

Thales Communications, Inc

Germantown, Maryland • Today

Full-time

USD 156,160.00 - 199,525.00 per year

Platform Engineer Senior Principal

General Dynamics

Arlington, Virginia • Today

Full-time

USD 185,300.00 - 250,700.00 per year

Senior Principal Azure Engineer

General Dynamics

Washington, District of Columbia • Today

Full-time

USD 157,250.00 - 212,750.00 per year

Principal FPGA Engineer

Thales Communications, Inc

Clarksburg, Maryland • Today

Full-time

USD 164,452.00 - 210,133.00 per year

Cyber Intelligence Engineer

The MITRE Corporation

McLean, Virginia • Today

Full-time

USD 172,800.00 - 216,000.00 per year

Principal Cloud Engineer

CVS Health

Remote or Florida • Today

Full-time

USD 144,200.00 - 288,400.00 per year

Principal Cyber Security Engineer 2026-01646

State of Wyoming Department of Education

Remote or Cheyenne, Wyoming • Today

Full-time

USD 7,184.67 - 7,983.73 per month

Principal Engineer - Data Protection & Insider Threat (Remote)

United Airlines

Remote or Chicago, Illinois • Today

Full-time

Principal FPGA Engineer

Owl Cyber Defense

Remote or Danbury, Connecticut • Today

Full-time

Principal Software Engineer

General Dynamics

Remote • Today

Full-time

USD 142,792.00 - 189,750.00 per year

Principal Software Front End Engineer

General Dynamics

Remote • Today

Full-time

USD 142,792.00 - 189,750.00 per year

Principal Engineer - AI Security

Thrivent Financial for Lutherans

Remote or Minnesota • Today

Full-time

USD 161,436.00 - 218,415.00 per year

Senior Principal Cybersecurity Engineer

Aptiv PLC

Remote or Troy, Michigan • Today

Full-time

Principal Software Reverse Engineer

STR

Arlington, Virginia • Today

Full-time

USD 204,000.00 - 284,000.00 per year

Principal Security Engineer - Threat Intelligence

Snowflake Inc.

Remote • Today

Full-time

USD 249,000.00 - 311,000.00 per year

Job Details

Skills

FOCUS
Enterprise Networks
Collaboration
Operational Excellence
Innovation
Network Monitoring
Analytics
Root Cause Analysis
Cloud Computing
Routing
Inspection
System Administration
Backup
Recovery
Tier 2
Engineering Support
Authorization
Scripting
Testing
Network Engineering
Routing Protocols
Border Gateway Protocol
OSPF
Virtualization
MPLS
Web Applications
HTTPS
TLS
Microsoft Windows
Linux
Operating Systems
Network Security
Network
Juniper
Palo Alto
F5
SNMP
Security Operations
Cyber Security
Risk Management Framework
NIST SP 800 Series
Information Security
Continuous Monitoring
Firewall
Routers
Switches
Agile
Security Clearance
Management
Presentations

FOCUS
Enterprise Networks
Collaboration
Operational Excellence
Innovation
Network Monitoring
Analytics
Root Cause Analysis
Cloud Computing
Routing
Inspection
System Administration
Backup
Recovery
Tier 2
Engineering Support
Authorization
Scripting
Testing
Network Engineering
Routing Protocols
Border Gateway Protocol
OSPF
Virtualization
MPLS
Web Applications
HTTPS
TLS
Microsoft Windows
Linux
Operating Systems
Network Security
Network
Juniper
Palo Alto
F5
SNMP
Security Operations
Cyber Security
Risk Management Framework
NIST SP 800 Series
Information Security
Continuous Monitoring
Firewall
Routers
Switches
Agile
Security Clearance
Management
Presentations

Summary

MANTECH seeks a motivated, mission-focused Principal Cyber Engineer (Network Focus) to join our team in Chantilly, VA.

In this role, you will provide advanced engineering expertise to design, implement, secure, and sustain complex enterprise network environments supporting critical customer missions. You will collaborate across technical teams and customer stakeholders to deliver resilient, highly available, and secure network solutions while driving operational excellence and innovation.

Responsibilities include but are not limited to:

Interact with engineers, cross-functional teams, and customers at multiple levels to gather, coordinate, and deliver technical information.
Work closely with engineering teams to troubleshoot and build complex, highly available network topologies.
Develop and manage comprehensive network monitoring and alerting strategies leveraging SNMP, flow analytics, packet inspection, and infrastructure telemetry to proactively identify performance degradation, capacity constraints, and service disruptions across complex enterprise and mission-critical environments.
Lead complex network troubleshooting and root cause analysis across enterprise, data center, cloud, and hybrid environments, utilizing packet captures, routing analysis, traffic flow inspection, and protocol level diagnostics to rapidly identify and resolve service-impacting issues.
Perform engineering support and system administration for applications and systems, including installation, configuration, maintenance, patching, and backup/restore activities.
Provide Tier 2/3 maintenance and engineering support for deployed network and cybersecurity technologies.
Support Assessment and Authorization (A&A) activities related to cybersecurity technologies, where applicable.
Develop and implement automation solutions for repetitive project tasks and metrics collection using scripting, supporting testing and production deployment.
Perform additional project and corporate duties as assigned to support customer mission requirements.

Minimum Qualifications:

Bachelor?s degree or 4+ additional years of IT experience in lieu of degree.
7+ years of experience in cybersecurity or network engineering.
Proficiency in configuring and optimizing routing protocols like BGP and OSPF.
Direct experience implementing network virtualization and encapsulation technologies (EVPN-VXLAN, MPLS).
Solid understanding of traffic management and security perimeter defenses, including load balancers, firewalls, and virtualized infrastructure.
Experience troubleshooting web application traffic to include a strong understanding of HTTPS transactions and mutual TLS (mTLS).
Strong understanding of Windows and Linux systems, operating system security practices, and network security concepts.
Experience deploying, upgrading, and troubleshooting multi-vendor network equipment and solutions, such as Juniper, Palo Alto, F5, and Nutanix.
Experience leveraging SNMP monitoring tools.
Must have or be willing to obtain an IAT Level II (or higher) certification within 6 months of hire.

Preferred Qualifications:

Knowledge of Cross Domain Solutions (CDS) technologies on the NCDSMO approved products list.
Understanding of architectural principles such as defense in depth, resilience, and integrated security operations.
Familiarity with federal cybersecurity guidance, including NIST SP 800-37 (Risk Management Framework) and NIST SP 800-137 (Information Security Continuous Monitoring).
In-depth understanding and practical experience with LANs, firewalls, routers, and switches.
Experience working in Agile environments.

Clearance Requirements:

Must possess an active TS/SCI with Polygraph.

Physical Requirements:

Must be able to remain in a stationary position 50% of the time.
Must occasionally move about inside the office to access file cabinets, office machinery, or communicate with co-workers, management, and customers via email, phone, or virtual platforms, which may involve delivering presentations.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: appfeed
Position Id: 22541_65340
Posted 1 day ago

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Network Engineer

Washington, District of Columbia

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Job ID: 2614570 Location: Washington, DC, US Date Posted: 2026-08-04 Category: Information Technology Subcategory: Network Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance Required: Top_Secret Clearance Level Must Be Able to Obtain: TS/SCI Potential for Remote Work: ORA_ON_SITE Description We are seeking a skilled LAN/WAN Network Engineer to support the Department of State (DoS) Bureau of Diplomatic Technology (DT) program. This program delivers transparent, int

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Job Details

Skills

FOCUS
Enterprise Networks
Collaboration
Operational Excellence
Innovation
Network Monitoring
Analytics
Root Cause Analysis
Cloud Computing
Routing
Inspection
System Administration
Backup
Recovery
Tier 2
Engineering Support
Authorization
Scripting
Testing
Network Engineering
Routing Protocols
Border Gateway Protocol
OSPF
Virtualization
MPLS
Web Applications
HTTPS
TLS
Microsoft Windows
Linux
Operating Systems
Network Security
Network
Juniper
Palo Alto
F5
SNMP
Security Operations
Cyber Security
Risk Management Framework
NIST SP 800 Series
Information Security
Continuous Monitoring
Firewall
Routers
Switches
Agile
Security Clearance
Management
Presentations

FOCUS
Enterprise Networks
Collaboration
Operational Excellence
Innovation
Network Monitoring
Analytics
Root Cause Analysis
Cloud Computing
Routing
Inspection
System Administration
Backup
Recovery
Tier 2
Engineering Support
Authorization
Scripting
Testing
Network Engineering
Routing Protocols
Border Gateway Protocol
OSPF
Virtualization
MPLS
Web Applications
HTTPS
TLS
Microsoft Windows
Linux
Operating Systems
Network Security
Network
Juniper
Palo Alto
F5
SNMP
Security Operations
Cyber Security
Risk Management Framework
NIST SP 800 Series
Information Security
Continuous Monitoring
Firewall
Routers
Switches
Agile
Security Clearance
Management
Presentations

Summary

MANTECH seeks a motivated, mission-focused Principal Cyber Engineer (Network Focus) to join our team in Chantilly, VA.

Responsibilities include but are not limited to:

Interact with engineers, cross-functional teams, and customers at multiple levels to gather, coordinate, and deliver technical information.
Work closely with engineering teams to troubleshoot and build complex, highly available network topologies.
Develop and manage comprehensive network monitoring and alerting strategies leveraging SNMP, flow analytics, packet inspection, and infrastructure telemetry to proactively identify performance degradation, capacity constraints, and service disruptions across complex enterprise and mission-critical environments.
Lead complex network troubleshooting and root cause analysis across enterprise, data center, cloud, and hybrid environments, utilizing packet captures, routing analysis, traffic flow inspection, and protocol level diagnostics to rapidly identify and resolve service-impacting issues.
Perform engineering support and system administration for applications and systems, including installation, configuration, maintenance, patching, and backup/restore activities.
Provide Tier 2/3 maintenance and engineering support for deployed network and cybersecurity technologies.
Support Assessment and Authorization (A&A) activities related to cybersecurity technologies, where applicable.
Develop and implement automation solutions for repetitive project tasks and metrics collection using scripting, supporting testing and production deployment.
Perform additional project and corporate duties as assigned to support customer mission requirements.

Minimum Qualifications:

Bachelor?s degree or 4+ additional years of IT experience in lieu of degree.
7+ years of experience in cybersecurity or network engineering.
Proficiency in configuring and optimizing routing protocols like BGP and OSPF.
Direct experience implementing network virtualization and encapsulation technologies (EVPN-VXLAN, MPLS).
Solid understanding of traffic management and security perimeter defenses, including load balancers, firewalls, and virtualized infrastructure.
Experience troubleshooting web application traffic to include a strong understanding of HTTPS transactions and mutual TLS (mTLS).
Strong understanding of Windows and Linux systems, operating system security practices, and network security concepts.
Experience deploying, upgrading, and troubleshooting multi-vendor network equipment and solutions, such as Juniper, Palo Alto, F5, and Nutanix.
Experience leveraging SNMP monitoring tools.
Must have or be willing to obtain an IAT Level II (or higher) certification within 6 months of hire.

Preferred Qualifications:

Knowledge of Cross Domain Solutions (CDS) technologies on the NCDSMO approved products list.
Understanding of architectural principles such as defense in depth, resilience, and integrated security operations.
Familiarity with federal cybersecurity guidance, including NIST SP 800-37 (Risk Management Framework) and NIST SP 800-137 (Information Security Continuous Monitoring).
In-depth understanding and practical experience with LANs, firewalls, routers, and switches.
Experience working in Agile environments.

Clearance Requirements:

Must possess an active TS/SCI with Polygraph.

Physical Requirements:

Must be able to remain in a stationary position 50% of the time.
Must occasionally move about inside the office to access file cabinets, office machinery, or communicate with co-workers, management, and customers via email, phone, or virtual platforms, which may involve delivering presentations.

Dice Id: appfeed
Position Id: 22541_65340
Posted 1 day ago

Fitment

Dice Job Match Score™

🔗 Matching skills to job...

Create job alert

Never miss an opportunity! Create an alert based on the job you applied for.

Similar Jobs

Network Engineer

Chantilly, Virginia

•

Today

Full-time

Network Engineer - Junior

Fairfax, Virginia

•

Today

Full-time

Senior Specialist, Network Plan Engineer

Herndon, Virginia

•

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USD 102,000.00 - 189,000.00 per year

Network Engineer

Washington, District of Columbia

•

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USD 80,001.00 - 120,000.00 per year