Network Engineer TS Clearance | Norfolk, VA

Network Engineer – TS/SCI Clearance | Norfolk, VA

Cambridge International Systems, Inc.

Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you’ll work alongside top talent worldwide, tackling some of today’s most complex and critical challenges in defense and security.

We are currently seeking a Network Engineer to support operations in Norfolk, VA. This is a full-time position requiring an active DoD TS clearance.

This position is contingent upon contract award with an expected award date of January 2026.

What You’ll Do

• Provide network engineering and administration of multi classification networks in support of the Cyber OT&E mission.

• Establish virtual environments tailored to support scheduled cyber OT&E events in timely manner; test and validate virtual environment prior to test execution and provide troubleshooting support during test execution.

• As required, design, install and upgrade, the cyber-attack lab, analysis lab, training lab, toolset and flyaway kits to support the cyber OT&E mission.

• Administer and maintain the cyber test infrastructure, including installing patches, hardening systems, reviewing system logs, monitoring system activity, maintaining physical security of all associated hardware, and disabling unnecessary service.

• Design, implement, and administer enclaves supporting penetration test team with implementation of computer network security, military system specifications, and DoD cybersecurity in accordance with Information Assurance Vulnerability (i.e. IAVA, IAVB) notices, STIG, Tasking Orders, Warning Orders, Fragmentary Orders, and security architecture policies.

• Apply virtual hosting and server technology into network architectures.

• Configure network infrastructure to support test team user environments used for testing as well as on- keyboard training evolutions.

• Support the planning/engineering and acquisition of hardware and software.

• Brief government O1D leadership weekly.

What You’ll Bring

Required Qualifications:

• Education & Experience:

• BS degree in Information Technology, Cybersecurity, Data Science, Information Systems, or Computer Science, from an Accreditation Board for Engineering and Technology (ABET) accredited or Certified Association Executive (CAE) designated institution OR minimum of 5 years’ experience with technical proficiency in network infrastructure and security design and configuration of routers, switches, firewalls, and load balancers.

• Minimum of 3 years’ experience in RMF security testing.

• Technical Expertise:

• Proficiency with automation tools to include but not limited to Python, Perl, or shell scripting languages

• Certifications:

• Must have a current and active DoD TS security clearance with the ability to obtain a SCI clearance.

• Proficient with modern IT tools and infrastructure technologies

Preferred (Nice to Have):

• Knowledge of the organization’s enterprise information security architecture system.

• Knowledge of network access, identity, and access management (e.g., PKI).

• Knowledge of network design processes, including security and operational objectives.

• Knowledge of network security architecture concepts, including topology, protocols, and principles (e.g., defense-in-depth).

• Knowledge of cybersecurity principles and organizational requirements (e.g., confidentiality, integrity, availability, authentication, non-repudiation).

• Knowledge of cybersecurity methods, such as firewalls, demilitarized zones, and encryption.

• Knowledge of network protocols and traffic flow (e.g., Open Systems Interconnection model).

• Ability to build and integrate architecture and frameworks.

• Analyze user needs and requirements to plan and document architecture.

• Plan implementation strategies to align enterprise components.

• Skill in designing and integrating hardware and software solutions.

• Skill in implementing and testing network infrastructure contingency and recovery plans.

• Integrate new systems into existing network architecture.

• Knowledge of network equipment (e.g., hubs, routers, switches) and their capabilities and applications.

• Ability to operate network equipment and Local Area Network (LAN) / Wide Area Network (WAN) pathways.

• Ability to monitor system performance, availability, and traffic flows.

• Skill in using network management tools (e.g., Simple Network Management Protocol) to analyze network traffic patterns.

• Knowledge of common attack vectors on the network layer and Virtual Private Network (VPN) security.

• Knowledge of symmetric key rotation techniques and concepts.

• Knowledge of configuration management techniques.

• Knowledge of security risk assessments and authorization per RMF processes.

• Provide input to RMF documentation and activities.

• Document and update architecture and related activities.

• Provide advice on project costs, design concepts, or design changes.

• Knowledge of communication methods and principles supporting network infrastructure.

• Skill in installing, configuring, and troubleshooting LAN and WAN components.

• Skill in sub-netting.

• Implement new system design procedures, test procedures, and quality standards.

Travel & Passport

• Some overnight stays possible.

Work Environment

• Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR | Health.mil .

Office setting:

• Primarily an office-based role in Norfolk, VA

• Standard desk/computer work with flexibility for walking and movement on site

• Must be able to work in an office environment, sitting at a desk, looking at a computer for most of the workday.

• Work is physically comfortable; the employee has discretion about sitting, walking, standing, etc.

• May be required to travel short distances to offices/conference rooms and buildings on site.

Background & Security

• Employment is contingent upon successful background investigation

• Drug screening may be required for federal contract compliance

Benefits & Perks

We believe in investing in our team—both professionally and personally:

• Medical, dental, vision, life, accident, and critical illness insurance

• 401(k) immediate vesting and match

• Paid time off and company holidays

• Generous tuition & training support

• Relocation assistance

• Sign-on and performance-based bonuses

• Employee referral program

• Access to Tickets at Work, EAP, wellness initiatives, and more

Join Us

If you're driven by mission, technology, and teamwork—we want to hear from you. Cambridge is growing, and this position is just one of many opportunities on our global team. Know someone perfect for the role? Referrals are welcome—both employees and non-employees may qualify for a bonus.

Apply today and help shape the future of secure cloud computing for national security.

About Cambridge International Systems

At Cambridge, innovation grows through diversity. We are proud to be an equal opportunity employer, committed to creating an inclusive and supportive work environment for all. Learn more at .