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Senior Network Security Engineer, IT / Cybersecurity Team. We’re seeking a Senior Network Security Engineer to lead the design, implementation, and security of 1X’s network infrastructure across corporate, cloud, and co-located environments. You’ll ensure scalable, high-performance connectivity while upholding best practices in network security and collaborating across teams.
Job Responsibility:
Architect, design, and implement secure and optimized network solutions for corporate offices, cloud infrastructure, and data centers
Manage and execute site builds, including secure office network deployments
Configure, secure, and manage wireless networks following security best practices
Troubleshoot wired, wireless, and service provider connectivity issues to maximize performance and uptime
Continuously optimize network performance, scalability, reliability, and security
Collaborate with IT, business, and operations teams to gather requirements and deliver resilient networking solutions
Develop and maintain detailed documentation including network diagrams, configurations, and policies
Travel occasionally, both locally and domestically, to support site deployments or audits
Requirements:
5–10 years of experience in network engineering or a related field
Strong understanding of TCP/IP fundamentals and the OSI model
Experience designing, deploying, and troubleshooting leaf-and-spine architectures using HPE Aruba CX switches
Expertise in EVPN/VXLAN, VSX, MLAG, BGP, OSPF, and fabric-level routing
Proficiency in diagnosing complex L2/L3 issues, including routing anomalies and segmentation
Experience deploying and managing Aruba APs, controllers, and Aruba Central/AirWave
Deep understanding of Wi-Fi design, including RF planning and optimization techniques
Implementation of certificate-based onboarding for Wi-Fi using ClearPass and EAP-TLS
Operation and troubleshooting of Aruba ClearPass (RADIUS, TACACS+, profiling, posture, PKI integration)
Management and debugging of Palo Alto firewalls (Panorama, NAT, VPNs, QoS, App-ID/User-ID)
Expertise in DNS and DHCP design, configuration, and troubleshooting
Familiarity with PKI, certificate lifecycle, and automated device enrollment
Experience with monitoring and observability tools (Grafana, NetFlow, SNMP, Syslog, telemetry)
Knowledge of network automation tools and practices
Familiarity with modern security stack components such as cloud security (Wiz), endpoint security (MDM, EDR, CrowdStrike), asset management/CMDB, and vulnerability management