Senior Network Engineer – Top Secret | North Charleston, SC

Senior Network Engineer – Top Secret | North Charleston, SC
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 Senior Network Engineer to support the Naval Information Warfare Center Atlantic (NIWC Atlantic) Expeditionary Enterprise Systems and Services (E2S2) Division in North Charleston, SC. NIWC Atlantic provides design, acquisition, and sustainment services for Marine Corps Systems Command (MCSC) Information Technology (IT) systems. This is a full-time, on-site office position requiring attendance five days per week, with one optional telework day.

What You’ll Do
As a Senior Network Engineer, you will play a critical role supporting NIWC Atlantic’s E2S2 Division and Marine Corps IT systems. You will:

• Support the design, acquisition, deployment, and sustainment of enterprise and tactical Marine Corps networks.
• Oversee the creation of hybrid software, web, and hardware products from initial specifications through final rollout and maintenance.
• Deploy and sustain Cisco Software Defined Wide Area Network (SD-WAN) solutions.
• Support network fielding’s, site surveys, installations, and other sponsor-requested mission activities.
• Configure, troubleshoot, and maintain network technologies including BGP, DMVPN / Flex VPN, HAIPE devices, and Multicast protocols.
• Work with major carriers, including providers such as Verizon, in support of network requirements.
• Install heavy network equipment into racks according to installation design plans.
• Travel to CONUS and OCONUS locations, including multiple week-long trips, as required to support mission requirements.

• Education & Experience:
  • Bachelor’s degree in Engineering from an Accreditation Board for Engineering and Technology (ABET) accredited program.
  • Seven (7) years of IT professional experience overseeing the creation of hybrid software, web, and hardware products from initial specifications to final rollout and maintenance.
  • Current Cisco CCNA certification required.
  • Proven experience with enterprise and/or tactical Marine Corps networks.
• Technical Expertise:
  • Cisco SD-WAN deployment and sustainment experience.
  • Fundamental understanding of Cisco Software Defined Wide Area Network (SD-WAN) and Cisco Catalyst Center (formerly DNAC).
  • Solid experience with Border Gateway Protocol (BGP) and experience working with major carriers (e.g., Verizon).
  • Experience with DMVPN / Flex VPN, hands-on experience with High Assurance Internet Protocol Encryption (HAIPE) devices, and familiarity with Multicast protocols.
• Clearance:
  • Must have a current and active DoD Top Secret security clearance.

• Current Cisco CCNP or equivalent vendor certification (e.g., JunOS, Arista).

• Travel 25% to 35% of the time, both CONUS and OCONUS, by motor vehicle and/or air travel may be required. Multiple week-long trips may be required for fieldings, site surveys, and other sponsor-requested mission activities.
• Must have an active passport to support OCONUS travel requirements.

• This is an on-site office role in North Charleston, SC requiring attendance five days per week, with one optional telework day.
• Travel between work locations, customer sites, and government installations may be required.
• Occasional extended work hours, including evenings or weekends, as needed to support mission requirements.
• Ability to lift heavy equipment and install it into racks according to installation design plans.
• Work is performed in a secure facility where personal electronic devices may be restricted.
• Physical activities may include lifting, carrying, positioning, and installing network equipment and hardware.
• Use of network tools, equipment, laptops, and job-related hardware as required for the role.
• Communication with team members, customers, and stakeholders through verbal and written methods.
• Ability to manage competing priorities, work under deadlines, and maintain attention to detail.
• Interaction with others in dynamic environments, including situations requiring problem-solving and conflict resolution.
• Compliance with applicable medical or travel requirements for domestic or international travel, as required by governing authorities.
• Compliance with vaccination and medical requirements for TDY/OCONUS roles as applicable.Vaccine Recommendations by AOR | Health.mil

• Employment is contingent upon successful background investigation
• Alcohol and Drug screening may be required for federal contract compliance

• 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

• Referral bonuses
• Performance-based bonuses
• Community involvement & outreach
• Wellness program
• 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, we believe innovation and agility thrive when people work together. Our culture is built on teamwork, collaboration, and a commitment to listening, learning, and bringing out the best ideas in every employee. We empower our people to take on challenges, persevere to get the job done, and lead with integrity in everything we do.
Our commitment to our employees and workplace culture has been recognized through the DAV Patriot Small Employer of the Year Award in 2026 and the Cigna Healthy Workforce Gold Designation in 2025. These recognitions reflect our ongoing commitment to creating a workplace where employees are valued, supported, and empowered to do their best work. At Cambridge, we are proud to foster an environment where people can grow, contribute, and make a meaningful impact.

Learn more at .

We are an equal opportunity employer. Applicants and employees are considered for positions and are evaluated without regard to any protected status under applicable law or other similar factors that are not job-related. We encourage all qualified individuals to apply for employment. Selected applicants may be subject to a background investigation and/or education verification.

We provide reasonable accommodation for qualified individuals with disabilities in accordance with federal, state, and local law. If you require a reasonable accommodation to participate in the application process or to perform the essential functions of the position, please contact our Recruiting Team at [email protected].