Senior Network Engineer — TS/SCI w/ Poly | DoD/CND Expert

Cornerstone Defense LLC; Annapolis (MD); On-site; USD 185,000 - 205,000; Full time

Benefits offered by this job

Medical, Dental and Vision Plans

Generous PTO Policy

401(k)

HSA and FSA options

Life Insurance

Tuition Reimbursement and Training

Perks at Work Discount Program

Referral Program

Leads Generation Program

CollegeAmerica 529

Fitness Reimbursement Program

Travel Assistance

Norton Lifelock Benefit Solutions

Life Planning Financial & Legal Svcs

Job summary

Cornerstone Defense LLC seeks a Senior Network Engineer with active TS/SCI clearance and polygraph to support critical DoD/IC networks in and around Annapolis Junction, MD. The role focuses on robust network design, performance optimization, and secure operations within a high-security environment.

You will lead network engineering efforts, automate administration, and collaborate with cross-functional teams to implement secure, scalable infrastructure aligned with mission requirements.

Qualifications

• Bachelor's Degree in Network Engineering or related discipline with 10 years of relevant professional experience.
• Master's Degree in Network Engineering or related discipline with 8 years of relevant professional experience providing Network Engineering support.
• Four years of relevant experience may substitute for a Bachelor's degree (six years for a Masters).
• Required Certifications: CCNP.

Responsibilities

• Provide technical support to Network Administrators and System Administrators, monitor and maintain the current infrastructure, improve system performance, and automate system administration.
• Provide input to the design of the organization's network and mission architecture.
• Conduct Computer Network Defense Operations, plan and install network upgrades, network design, and perform quality assurance and control.
• Configure and maintain the organization's network diagrams and accreditations.
• Integrate hardware and software to satisfy DoD/IC regulations.
• Oversee the support to all network equipment.
• Support the integration of the analytic platform into the CND CDC.

Skills

Network Engineering

CCNP Certification

Education

Bachelor's Degree in Network Engineering

Master's Degree in Network Engineering

Job description

Cornerstone Defense LLC seeks a Senior Network Engineer with active TS/SCI clearance and polygraph to support critical DoD/IC networks in and around Annapolis Junction, MD. The role focuses on robust network design, performance optimization, and secure operations within a high-security environment.

You will lead network engineering efforts, automate administration, and collaborate with cross-functional teams to implement secure, scalable infrastructure aligned with mission requirements.