Security Engineer

Networking Technologies + Support; Midlothian (VA); On-site; USD 90,000 - 100,000; Full time

Benefits offered by this job

401(k) matching

Dental insurance

Health insurance

Life insurance

Paid time off

Professional development assistance

Vision insurance

Employee discount

Job summary

Networking Technologies + Support (NTS) is seeking an experienced Security Engineer to design, implement, and support secure enterprise network infrastructures while ensuring CMMC compliance. The role requires hands-on expertise in secure network architecture, security controls, and risk mitigation across enterprise environments.

The candidate will lead security design efforts, collaborate with clients and internal teams, and mentor junior engineers.

Qualifications

• Experience designing and securing enterprise network architectures to meet CMMC requirements.
• Hands-on security engineering with focus on risk mitigation and secure networking.
• Proficient in Cisco routing and switching; design, implement, document, and troubleshoot networks.

Responsibilities

• Design, implement, and support secure enterprise network architectures.
• Ensure environments meet CMMC requirements and cybersecurity controls.
• Implement and maintain security controls per best practices.
• Configure and troubleshoot enterprise network infrastructure.
• Develop technical documentation and network diagrams.
• Manage firewalls, VPNs, NAC, and secure remote access.
• Analyze risks and recommend remediation strategies.
• Support security assessments, audits, and compliance initiatives.
• Collaborate with engineers to integrate secure solutions for clients.
• Provide technical leadership and mentorship to junior engineers.
• Stay current with cybersecurity threats and best practices.

Skills

CMMC compliance

Enterprise security

Cisco routing/switching

Firewalls & VPNs

Network design

Documentation

Team mentorship

Analytical thinking

Job description

Join a Team That Secures Innovation

At Networking Technologies + Support (NTS), we're passionate about delivering secure, innovative technology solutions that help organizations thrive. As a leading Managed Services Provider (MSP), we design, implement, and support enterprise infrastructure, cybersecurity, and networking solutions for commercial, healthcare, government, and regulated industries.

We are seeking an experienced Security Engineer with expertise in Cybersecurity Maturity Model Certification (CMMC) and enterprise security architecture to join our growing engineering team.

Position Overview

The Security Engineer will be responsible for designing, implementing, securing, and supporting enterprise network and security infrastructures while ensuring compliance with CMMC and other cybersecurity frameworks. This role requires strong experience with secure network architecture, security controls, risk mitigation, and enterprise networking technologies.

The ideal candidate is a hands‑on technical expert who enjoys solving complex security challenges while working collaboratively with clients and internal engineering teams.

Responsibilities

• Design, implement, and support secure enterprise network architectures.


• Design and maintain environments that meet Cybersecurity Maturity Model Certification (CMMC) requirements.


• Implement and maintain security controls aligned with industry best practices.


• Configure, optimize, and troubleshoot enterprise network infrastructure.


• Develop and maintain technical documentation, network diagrams, and security architecture documentation.


• Implement and support firewalls, VPNs, network segmentation, NAC, and secure remote access solutions.


• Configure and troubleshoot routing and switching technologies in enterprise environments.


• Analyze security risks and recommend remediation strategies.


• Participate in security assessments, audits, and compliance initiatives.


• Collaborate with engineering teams to integrate secure network solutions into client environments.


• Provide technical leadership and mentorship to junior engineers.


• Stay current with emerging cybersecurity threats, technologies, and best practices.

Required Qualifications

• Demonstrated experience supporting organizations with CMMC compliance (Required)


• Minimum 5-10 years of enterprise networking and security engineering experience.


• Strong experience designing and implementing secure enterprise network architectures.


• Expert knowledge of Cisco routing and switching technologies.


• Extensive experience configuring and troubleshooting enterprise networking equipment.

Strong understanding of:

• BGP


• OSPF


• EIGRP


• VLANs


• STP


• VTP


• VRFs

Experience implementing and supporting:

• Enterprise Firewalls


• VPN technologies


• Access Control Lists (ACLs)


• 802.1X Network Access Control


• Experience with Microsoft enterprise environments and secure infrastructure.


• Excellent analytical, troubleshooting, and documentation skills.


• Strong verbal and written communication skills.


• Ability to work independently and collaboratively within a team.


• Required Certifications

Candidates should possess one or more of the following:

• Active experience supporting CMMC compliance (Required)


• Cisco CCNP Enterprise or CCNP Data Center


• Cisco CCIE or CCDE


• Offensive Security Certified Professional (OSCP)

Preferred Qualifications

Experience with one or more of the following is highly desirable:

• Alto Networks


• Fortinet


• Juniper Networks


• Meraki


• HPE Aruba


• Sophos


• Brocade

Additional cybersecurity certifications are a plus:

• PNPT


• CRTO


• eCPPT


• CPTS


• CRTP

Experience with advanced security research and offensive security technologies:

• DragonOS


• RF Hacking


• Software-Defined Radio (SDR)


• HITB Training

Why Join NTS?

• Competitive salary based on experience and certifications


• Comprehensive benefits package


• Opportunities for professional development and advanced technical training


• Exposure to enterprise infrastructure and cybersecurity projects


• Collaborative engineering culture with experienced technical professionals


• Career advancement opportunities within a growing Managed Services Provider

Pay: 90k - 100k

Benefits:

401(k) matching
Dental insurance
Employee discount
Health insurance
Life insurance
Paid time off
Professional development assistance
Vision insurance

If you're passionate about cybersecurity, enterprise networking, and helping organizations build secure, resilient environments while supporting CMMC compliance, we'd love to hear from you.