Network Engineer - TS/SCI w/Poly

Job Title NETWORK ENGINEER Job Details Type of Requisition: Regular Clearance Level: Top Secret SCI + Polygraph (current and able to obtain) Public Trust/Other Required: None Job Family: IT Infrastructure and Operations US Citizenship Required: Yes Responsibilities Design, implement, support, and maintain the network environment with Juniper and Cisco switches, load balancers, and boundary devices. Manage networks that support hundreds of thousands of endpoint devices. Apply network security compliance and software‑defined networking (SDN) practices. Utilize Forward Networks to create virtual network clones, test SDN code upgrades, and document infrastructure. Provide day‑to‑day operational support, troubleshooting, and maintenance of enterprise‑scale switching infrastructure. Configure and maintain load‑balancing technologies and boundary security devices (e.g., firewalls, edge routers). Build virtual replicas of the production network and simulate/validate SDN code changes. Document existing physical and logical network topology. Ensure network integrity, performance, and security for distributed infrastructure. Monitor and respond to network incidents, leading root cause analysis and resolution efforts. Maintain and update network diagrams, configurations, and documentation in accordance with industry and organizational standards. Ensure compliance with security policies and regulatory requirements. Plan and execute network upgrades, migrations, and optimizations. Collaborate with cross‑functional teams including cybersecurity, infrastructure, and application teams. Work independently with minimal supervision while proactively identifying and resolving network issues. Qualifications Bachelor of Arts/Science. 5+ years of related experience supporting enterprise networks with Cisco and Juniper technologies. Strong knowledge of Layer2/3 networking, routing protocols (OSPF, BGP, EIGRP), VLANs, VRFs, and QoS. Experience configuring and managing load balancers (F5, Citrix, or equivalent) and boundary devices such as firewalls or network access control appliances. Proficiency with Forward Networks or similar digital twin/virtual network simulation tools. Solid understanding of Software‑Defined Networking (SDN) principles. Demonstrated ability to work independently and self‑direct tasks in a complex environment. Strong awareness of network security best practices, compliance standards, and patch management processes. Excellent written and verbal communication skills. Must be willing to support an on‑call rotation. Preferred: Relevant certifications such as CCNP, JNCIP, CCIE, or JNCIE; high‑availability, mission‑critical experience; scripting languages (Python, Ansible) for network automation; experience in government or highly regulated enterprise environments. Security clearance level: TS/SCI with Polygraph. 8570 compliant with a Security + certificate. US citizenship required. Benefits Comprehensive benefits and wellness packages, 401(k) with company match. Paid time off, vacation, sick, personal, holidays, parental, military, bereavement, jury duty leave. Short and long‑term disability, life, accidental death and dismemberment, critical illness, business travel insurance. Flex work weeks where possible. Compensation Likely salary range: $110,500 - $149,500 (determined by experience, geographic location and contractual requirements). Work Locations USA MD Annapolis Junction (onsite). Travel Less than 10%. EEO Statement Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans #J-18808-Ljbffr