Network Engineer – Top Secret Clearance | Norfolk, VA

Cambridge International Systems Inc • Norfolk, VA

110d

About The Position

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.

Requirements

• Bachelor’s degree in IT, Cybersecurity, or a related field (ABET/CAE-accredited) OR 5+ years' experience in network design, infrastructure, and security.
• At least 3 years of RMF security testing experience.
• Hands-on experience configuring routers, switches, firewalls, and load balancers.
• Proficiency in Python, Perl, or shell scripting for automation.
• Experience applying STIGs, IAVA compliance, and DoD cybersecurity policies.
• Familiarity with RMF, network segmentation, and defense-in-depth design.
• 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.

Nice To Haves

• Working knowledge of LAN/WAN architecture, VPN security, PKI, and common attack vectors.
• Familiarity with Simple Network Management Protocol (SNMP) tools and traffic analysis.
• Experience supporting DoD environments and cyber OT&E missions.
• Understanding of RMF documentation, security assessments, and accreditation artifacts.

Responsibilities

• Provide network engineering, administration, and cybersecurity support for multi-classification cyber OT&E networks and infrastructure.
• Design, install, configure, and maintain cyber labs (attack, analysis, training), toolsets, and flyaway kits.
• Create virtualized environments to support test events, ensure operational readiness, and troubleshoot issues during execution.
• Administer network systems: apply patches, harden systems, review logs, and ensure physical/electronic security.
• Support RMF compliance activities, including documentation and vulnerability analysis.
• Configure networks to support penetration testing and on-keyboard cyber training events.
• Integrate server and virtual hosting technologies into secure network architecture.
• Coordinate with stakeholders and brief OPTEVFOR leadership on a weekly basis.

Benefits

• 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.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: Bachelor's degree
• Number of Employees: 251-500 employees