Senior Network Engineer, I

**Department:** WDTech \- R\&D We are Walker \& Dunlop. We are one of the largest providers of capital to the commercial real estate industry, enabling real estate owners and operators to bring their visions of communities — where people live, work, shop, and play — to life. We are committed to creating meaningful social, environmental, and economic change in our communities. **Department Overview** **WDTech** is W\&D’s in\-house technology team – a group of collaborative and highly skilled technology professionals, all of whom are leading experts in real estate data, data science, and technology. **WDTech Engineering** builds solutions that impact not only our products but also the people and processes across our organization. A commitment to innovation and a passion for disrupting the old\-fashioned real estate industry are our highest priorities. **The Impact You Will Have** The Senior Network Engineer, I is responsible for the analysis, installation, configuration, maintenance, security, and support of the enterprise\-wide LAN, WAN, wireless, and network security infrastructure. This role ensures network availability, reliability, and performance align with business requirements. The position requires strong technical expertise in monitoring, securing, and maintaining a complex enterprise network environment. **Primary Responsibilities** * Provide Tier I–III support for LAN/WAN\-related issues. * Configure, administer, and maintain Cisco networking technologies, including routers and switches supporting critical business applications. * Configure and manage firewall policies and threat protection using Cisco Firepower Threat Defense (FTD) and Firepower Management Center (FMC). * Design, implement, and maintain secure network access using Cisco Identity Services Engine (ISE). * Deploy and support zero\-trust network access solutions using Cisco Secure Access. * Manage and execute network\-related projects, ensuring alignment with industry best practices and standards for scalability, security, and performance. * Lead troubleshooting efforts, including diagnosis, resolution, escalation, and implementation of workaround solutions. * Provide advanced technical support and mentorship to peers and internal teams. * Participate in an on\-call rotation to support operational and project\-related needs. * Track, analyze, and remediate vulnerabilities identified by the Information Security team. * Perform other duties as assigned **Education and Experience** * Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent professional experience. * 7\+ years of experience as a Network Engineer in a mid\- to large\-scale enterprise environment. * Active CCNA certification or equivalent technical experience preferred. * Experience working with Cisco networking technologies, including routing, switching (Catalyst), and ISR/ASR routers. * Experience supporting network security technologies, including Cisco Iden