Network Engineer
Mantis Security Corporation, Reston, VA, United States
Mantis Security is a leading specialty firm of high caliber talent who specialize in Cyber Operations, Cyber Defense, Information Assurance, Software Development, DevSecOps, Security Engineering, and Cloud Engineering. We enable and protect our nation's most important IT assets and invest in the long-term career development of every employee! We are currently looking for the next Network Engineer to join our team of experts!
Position Overview
Support the engineering, implementation, sustainment, and troubleshooting of secure enterprise and mission networks across
Cisco, Juniper, HP/Aruba, and Palo Alto
environments. This senior-level role emphasizes hands-on network engineering, operational sustainment, infrastructure modernization, and security compliance in complex government networks.
Key Responsibilities
Network Engineering & Operations
Engineer and sustain LAN/WAN infrastructure across multi-vendor environments.
Support advanced routing, switching, transport, and security technologies in support of enterprise operations.
Troubleshoot network issues, perform fault isolation, support incident response, and maintain reliable network performance.
Support traffic analysis, system monitoring, bandwidth optimization, and operational improvements across enterprise environments.
Work across routing, switching, wireless, and security technologies to support day-to-day operations and long-term stability.
Security & Modernization
Implement secure network designs aligned with
DISA STIGs, ATO requirements, and government security policies .
Support firewall, segmentation, and boundary protection efforts, including
Palo Alto
environments.
Support technology refreshes, upgrades, migrations, and modernization initiatives.
Develop architecture diagrams, technical documentation, and implementation support materials.
Evaluate and recommend improvements to enhance network performance, resilience, and standardization.
Network Implementation & Operational Support
Execute network changes, maintenance activities, and approved engineering updates.
Perform hands-on implementation and sustainment support for infrastructure enhancements and technology refreshes.
Troubleshoot and resolve complex issues in coordination with operations teams and vendor support.
Support operational readiness and continuity across enterprise and mission network environments.
Required Qualifications
Bachelor's degree in related field or equivalent experience.
10 years of network engineering or network operations experience.
Hands-on experience with
Cisco, Juniper, HP/Aruba, and Palo Alto
technologies.
Experience supporting secure enterprise network environments, including routing, transport, and network security technologies.
Current
DoD 8570 IAT II
certification required.
Current
CCNA (or equivalent)
required.
Active
TS/SCI
with ability to obtain and maintain a CI Polygraph.
Preferred Qualifications
CCNP, JNCIS/JNCIP, Palo Alto, Aruba, or similar advanced certifications preferred.
Experience in DoD or Intelligence Community environments.
Experience supporting TAC, NOC, transport engineering, or enterprise network operations.
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Position Overview
Support the engineering, implementation, sustainment, and troubleshooting of secure enterprise and mission networks across
Cisco, Juniper, HP/Aruba, and Palo Alto
environments. This senior-level role emphasizes hands-on network engineering, operational sustainment, infrastructure modernization, and security compliance in complex government networks.
Key Responsibilities
Network Engineering & Operations
Engineer and sustain LAN/WAN infrastructure across multi-vendor environments.
Support advanced routing, switching, transport, and security technologies in support of enterprise operations.
Troubleshoot network issues, perform fault isolation, support incident response, and maintain reliable network performance.
Support traffic analysis, system monitoring, bandwidth optimization, and operational improvements across enterprise environments.
Work across routing, switching, wireless, and security technologies to support day-to-day operations and long-term stability.
Security & Modernization
Implement secure network designs aligned with
DISA STIGs, ATO requirements, and government security policies .
Support firewall, segmentation, and boundary protection efforts, including
Palo Alto
environments.
Support technology refreshes, upgrades, migrations, and modernization initiatives.
Develop architecture diagrams, technical documentation, and implementation support materials.
Evaluate and recommend improvements to enhance network performance, resilience, and standardization.
Network Implementation & Operational Support
Execute network changes, maintenance activities, and approved engineering updates.
Perform hands-on implementation and sustainment support for infrastructure enhancements and technology refreshes.
Troubleshoot and resolve complex issues in coordination with operations teams and vendor support.
Support operational readiness and continuity across enterprise and mission network environments.
Required Qualifications
Bachelor's degree in related field or equivalent experience.
10 years of network engineering or network operations experience.
Hands-on experience with
Cisco, Juniper, HP/Aruba, and Palo Alto
technologies.
Experience supporting secure enterprise network environments, including routing, transport, and network security technologies.
Current
DoD 8570 IAT II
certification required.
Current
CCNA (or equivalent)
required.
Active
TS/SCI
with ability to obtain and maintain a CI Polygraph.
Preferred Qualifications
CCNP, JNCIS/JNCIP, Palo Alto, Aruba, or similar advanced certifications preferred.
Experience in DoD or Intelligence Community environments.
Experience supporting TAC, NOC, transport engineering, or enterprise network operations.
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