Network Security Engineer

Job Title: Network Engineer Senior (Security) Clearance Level: TS/SCI Location: On‑site in Alexandria, VA at Ft. Belvoir As a Network Engineer Senior (Security), the work you will do will be impactful to the mission of US Army Intelligence and Security Command (INSCOM). You will play a crucial role in supporting the INSCOM mission. Responsibilities: Install, configure, and maintain customer network infrastructure and security stack as part of a global enterprise. Troubleshoot networking and security protocols/technologies, including switching, routing, and security (e.g., Layer 4‑7, firewall, Site‑to‑Site VPN, DMVPN, etc.) to resolve problems on the customer information system. Analyze, plan, and implement access control lists (ACL), firewall policies, and other logical security controls in a multi‑vendor security stack. Provide expert‑level (Tier 3) network security engineering support for INSCOM activities in the National Capital Area. Collaborate with teams of various technical disciplines to solve enterprise IT problems from a holistic perspective. Configure load balancing and authentication policies on F5 BIG‑IP to support web application hosting. Requirements: Education: Bachelor's Degree with 12 years of experience OR Master's Degree with 10 years of experience. Excellent communication skills and ability to interact with both clients and teammates. Experience with configuring, integrating, and troubleshooting security appliances in a multi‑vendor federal enterprise environment. Experience with the behavior of routing protocols in Next Generation Firewalls. Experience with Network Automation tools, scripting languages, or Infrastructure as Code tools (e.g., NetBrain, Python, PowerShell, APIs, Terraform, Ansible). Intermediate knowledge of F5 BIG‑IP deployment and configuration with Local Traffic Manager and Application Security Manager. Hardening network devices in accordance with STIGS/NIST and industry best practices. Experience with packet analysis tools such as TCPDump and Wireshark. Experience working in a large SDLC environment. Security Clearance Level: TS/SCI Required Certifications: DoD 8570/8140 Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract. Cisco Certified Network Professional – Security. Cisco Certified Network Professional – Enterprise. Palo Alto Networks Certified Network Security Engineer. Additional: Candidates must be willing and able to attain a CI Polygraph for certain positions as determined by the contract. Position may require lifting of objects (i.e., IT hardware), reaching/bending/kneeling (i.e., plug in cables), and other moderately strenuous activity. Travel may be required to support the mission. About SBS: Strategic Business Systems, Inc. (SBS) is a National Information Technology Services company headquartered in the Washington D.C. Metro area. SBS provides IT infrastructure design, integration, and operation services. Our expertise encompasses the full spectrum of infrastructure technologies, including the latest network, server, data storage, disaster recovery, security, and Internet technologies. EEO Disclaimer SBS is an equal opportunity employer; all qualified applicants will receive consideration for employment without regard to age, gender identification, sex, sexual orientation, color, race, creed, national origin, religion, marital status, parental status, citizenship status, ancestry, physical or mental disability, genetic information, veteran status, military status, or any other classification protected by federal, state, or local laws. Accommodations If you need an accommodation seeking employment with SBS, please emailhr@sbsplanet.com. Accommodations are made on a case‑by‑case basis. #J-18808-Ljbffr