Network Engineer, Senior

Senior Network EngineerOur patients are our number one priority! We're committed to giving children back their childhood!Location: Dallas - HospitalMonday - FridayBusiness hours and after hours as neededCandidates must be located in the Dallas-Fort Worth area or be willing to relocate upon hireWe are seeking a Senior Network Engineer to act as the lead technical authority for our enterprise network infrastructure. This role is deeply hands-on and responsible for driving network design standards, leading complex troubleshooting efforts, and executing high-impact engineering initiatives. The successful candidate will bring expert-level experience with Cisco enterprise networking, Palo Alto Networks firewalls, and advanced network services, along with proven proficiency in enterprise wireless networking. This role also plays a key part in developing standard operating procedures (SOPs) and mentoring other network engineering staff.This position is well aligned with a CCIE-level engineering role, requiring strong theoretical knowledge, practical implementation skills, and disciplined operational rigor.Key ResponsibilitiesServe as the lead network engineer, providing technical direction and hands-on leadership across all aspects of the enterprise networkDesign, implement, and support complex Cisco-based campus, core, and wireless network architecturesAct as the primary escalation point for advanced network issues, performing deep-dive troubleshooting and root-cause analysisEngineer, deploy, and maintain Palo Alto Networks firewalls, including policy design, advanced security features, and VPN servicesDesign, deploy, and support enterprise wireless networks, ensuring high availability, performance, security, and seamless client connectivityAdminister and enhance Cisco Identity Services Engine (ISE) for network access control, authentication, authorization, and profilingUtilize Cisco Catalyst Center to support network automation, assurance, configuration management, and operational visibility across wired and wireless environmentsDefine and enforce network engineering standards, best practices, and design patternsLead network lifecycle activities including upgrades, migrations, expansions, and hardware refreshesCreate, maintain, and continuously improve standard operating procedures (SOPs), runbooks, and technical documentationMentor and provide technical guidance to junior and mid-level network engineersCollaborate with security, infrastructure, and application teams to ensure stable and secure network integrationParticipate in on-call rotation and provide expert-level support during critical network incidentsRequired Qualifications7+ years of hands-on enterprise network engineering experienceExpert-level knowledge of Cisco enterprise networking technologiesExtensive experience with Palo Alto Networks firewalls in production environmentsStrong operational experience with Cisco ISE, including NAC policy design and troubleshootingProven proficiency with Cisco Catalyst Center for wired and wireless network operationsProven proficiency with enterprise wireless networking, including design, deployment, and troubleshootingAdvanced understanding of:Routing and switching protocolsWireless RF fundamentals and client behaviorNetwork resiliency and high availabilityNetwork security architecture and segmentationProven ability to troubleshoot complex, multi-domain network issues independentlyStrong documentation skills, with experience authoring SOPs, standards, and operational guidesAbility to lead technical initiatives end-to-end with minimal oversightPreferred QualificationsCCIE (Enterprise, Security) or CCNP Enterprise, or equivalent demonstrated experiencePalo Alto Networks certifications (PCNSE preferred)Experience with enterprise wireless platforms (Cisco Wireless, including controller-based or SDA environments)Experience with network automation and scripting (Python, REST APIs, Ansible)Experience supporting large-scale or mission-critical enterprise environmentsFamiliarity with SD-Access and advanced campus architectures