Senior Network Engineer – Top Secret | North Charleston, SC

cambridgeinternationalsystems; Charleston (SC); On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) match

Paid time off

Relocation assistance

Sign-on bonus

Tuition & training support

Employee referral program

Job summary

Cambridge International Systems, Inc. in North Charleston, SC, seeks a Senior Network Engineer to support NIWC Atlantic's E2S2 Division. This on-site role requires five days a week in the office, with one optional telework day, and a current DoD Top Secret clearance.

You will design, deploy, and sustain Marine Corps networks, including SD-WAN, BGP, DMVPN, and HAIPE devices, coordinating with major carriers and fielding teams to support mission requirements.

Qualifications

• Bachelor’s degree in Engineering from an ABET-accredited program.
• Seven (7) years of IT 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.

Responsibilities

• 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.

Skills

Cisco SD-WAN

BGP

HAIPE devices

DMVPN / Flex VPN

CCNA certification

Enterprise networks

Education

ABET-accredited engineering program

Tools

Cisco SD-WAN deployment

Verizon networks

HAIPE devices

Job description

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

• 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.

What You’ll Bring

Required Qualifications

• 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.

Preferred (Nice to Have)

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

Travel Requirements

• 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.

Physical & Work Environment 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.

Background & Security

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

Benefits & Perks

• 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

Cambridge International Systems is committed to investing in our employees and their future by providing them with competitive compensation, career development opportunities and comfortable working conditions. Available to part-time and temporary employees are the benefits below:

• Referral bonuses
• Performance-based bonuses
• Community involvement & outreach
• Wellness program
• Employee referral program
• Access to Tickets at Work, EAP, wellness initiatives, and more

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 www.cbridgeinc.com.

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.