Thorough knowledge of concepts, techniques, and methods of: configuring, implementing, and maintaining local and wide area voice and data networks; connectivity and interoperability; a variety of protocols (IPC/SPX, TCP/IP, SNA); architecture (router, bridges, hubs, switches); operating systems (Windows /Active Directory); Internet connectivity and firewall security; and. This position requires a senior-level network professional with strong hands-on expertise, the ability to support mission-critical public safety and municipal operations, and the capacity to collaborate across IT, vendors, and City departments to deliver resilient, secure, and scalable network services.