Network Engineer - Secret Clearance| Quantico, VA

Network Engineer – Secret Clearance | Quantico, 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 Quantico, VA. This is a full-time position requiring an active DoD Top Secret clearance. What You’ll Do Provide network engineering, administration, and cybersecurity support for multi-classification networks and infrastructure. Create virtualized environments to support test events, ensure operational readiness, and troubleshoot issues during execution. Administer network systems: apply patches, harden systems, review logs. Support RMF compliance activities, including documentation and vulnerability analysis. Integrate server and virtual hosting technologies into secure network architecture. Required Qualifications Education & Experience: Bachelor’s degree in IT, Cybersecurity, or a related field (ABET/CAE-accredited) OR 5+ years' experience in network design, infrastructure, and security. Technical: Hands‑on experience configuring routers, switches, firewalls. Experience applying STIGs, IAVA compliance, and DoD cybersecurity policies. Familiarity with RMF, network segmentation, and defense‑in‑depth design. Familiarity with virtualized networking infrastructure and Software‑Defined Networking (SDN). Preferred (Nice to have): Working knowledge of LAN/WAN architecture, VPN security, PKI, and common attack vectors. Familiarity with SNMP tools and traffic analysis. Experience supporting DoD environments. Certifications: Must have a current and active DoD Top Secret security clearance. Proficient with modern IT tools and infrastructure technologies. Travel & Passport Some overnight stays possible. Work Environment Full time onsite role on USMC Base Quantico in Quantico, 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. 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. 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 recognize innovation and agility grow through teamwork. By working collaboratively, listening proactively, and engaging across functions we create solutions that build on the best ideas our employees bring to the table. We are committed to one another, to persevere in order to get the job done, and to do so with integrity every time. 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 View email address on click.appcast.io. #J-18808-Ljbffr Cambridge International Systems