Principal Information Security Engineer- Manager

## Job Description* Deploy, configure, and maintain routers, switches, firewalls, and VPNs across data center and field environments.* Install, terminate, and test optical fiber (single-mode and multi-mode), and end-to-end troubleshooting.* Serve as a trusted technical contact for customers, vendors, and peers during deployments and escalations.* Produce clear, reusable technical documentation including network diagrams, Methods of Procedure (MoPs), and runbooks.* Identify risks during deployment and ensure adherence to compliance and government security standards.* Collaborate with cross-functional teams to integrate security into network design and deployments.* Travel domestically as required to support surveys, installations, and cutovers.* Perform advanced troubleshooting of network security issues and escalations to restore service quickly and prevent recurrence.* Define and execute repeatable lab and field test procedures; help standardize deployment patterns and acceptance criteria.* Coordinate activities with vendors, internal teams, and customer stakeholders to meet scope, schedule, and quality objectives.* Contribute to peer knowledge transfer and the documentation of best practices and lessons learned.* Active TS/SCI clearance with CI polygraph.* 8+ years of progressively responsible experience in network engineering or security operations.* Strong hands-on expertise with optical fiber (testing and troubleshooting across single-mode and multi-mode).* Proven experience with routed and switched networks: TCP/IP, Ethernet, VLANs, IPsec, VPNs, and firewalls.* Familiarity with automation/configuration tools (e.g., Ansible).* Background in system, network, or security administration (Unix/Linux preferred).* Excellent written and verbal communication skills; proven stakeholder engagement with customers and vendors.* Experience with SD-WAN platforms (e.g., Fortinet, Juniper, Viptela, Aruba) and load balancers (F5, Citrix).* Familiarity with NIST standards, DISA STIGs, TIC 3.0, and Zero Trust architectures.* Demonstrated contributions to standards, documentation, and technical training in large-scale environments.- **90 days:** Lead deployments end-to-end and produce hardened design recommendations aligned to compliance requirements. #J-18808-Ljbffr