Network & Wireless Infrastructure Engineer

Job Description

Job Description:We are seeking an experienced Global Network & Wireless Infrastructure Engineer to design, implement, administer, maintain, and support our organization's wired and wireless network infrastructure across all domestic and international locations.This position serves as a primary technical resource for global network infrastructure, with responsibility for maintaining reliable, secure, and high-performing network connectivity throughout the organization.The ideal candidate will possess extensive hands-on experience in enterprise Wi-Fi design, implementation, optimization, and troubleshooting, along with strong technical proficiency in Cisco Catalyst switching, Cisco Meraki MX firewalls, and Ubiquiti UniFi wireless networking.The successful candidate must be capable of independently designing and implementing moderately complex LAN environments, deploying reliable wireless networks in challenging physical environments, and resolving complex networking issues across geographically distributed facilities.The role combines network engineering, infrastructure administration, project implementation, and operational support. Domestic and international travel is required for network installations, upgrades, troubleshooting, site assessments, and other infrastructure projects.Key Responsibilities1. Global Network Infrastructure Management Serve as a primary technical resource responsible for wired and wireless networking infrastructure across all company locations worldwide. Design, implement, administer, monitor, and maintain LAN, WLAN, WAN, firewall, and VPN infrastructure. Establish and maintain consistent network architecture, configuration standards, and security practices across global facilities. Support the deployment of network infrastructure at new locations, facility expansions, relocations, and renovations. Independently plan and execute network upgrades, hardware replacements, and infrastructure improvements. Remotely diagnose and resolve network issues affecting domestic and international locations. Coordinate with local personnel, telecommunications providers, contractors, and equipment vendors. Maintain accurate network topology diagrams, IP addressing documentation, equipment inventories, and configuration records. Identify opportunities to improve network reliability, performance, security, and standardization. Participate in network infrastructure planning, lifecycle management, and technology refresh initiatives.2. Enterprise Wireless Network Engineering Design, deploy, configure, optimize, and maintain enterprise Wi-Fi networks, primarily using Ubiquiti UniFi equipment. Conduct predictive and physical wireless site surveys, RF assessments, and post-installation validation. Develop wireless coverage and capacity plans based on facility layouts, building materials, device density, and operational requirements. Determine appropriate wireless access point placement, antenna selection, channel assignments, and transmit power settings. Configure and optimize wireless networks using 2.4 GHz, 5 GHz, and 6 GHz technologies where applicable. Support Wi-Fi 5, Wi-Fi 6/6E, and Wi-Fi 7 technologies. Configure SSIDs, VLAN assignments, wireless security, guest access, and enterprise authentication. Troubleshoot wireless roaming, interference, authentication failures, intermittent connectivity, and performance degradation. Optimize wireless connectivity for handheld scanners, Android devices, laptops, and other business-critical mobile equipment. Design wireless solutions for challenging environments, including warehouses, industrial facilities, high ceilings, metal shelving, and areas with significant RF interference. Administer Ubiquiti UniFi Network management platforms and maintain consistent wireless configuration standards. Utilize wireless survey, spectrum analysis, packet capture, and diagnostic tools to identify and resolve complex RF issues.Extensive hands-on wireless design and troubleshooting experience is essential.3. Cisco LAN Switching & Network Design Design and implement moderately complex enterprise LAN environments. Configure, administer, and troubleshoot Cisco Catalyst switches running Cisco IOS and IOS XE. Perform switch configuration and troubleshooting using the Cisco command-line interface. Configure and maintain Layer 2 and Layer 3 switching, VLANs, trunking, and inter-VLAN routing. Configure and troubleshoot STP/RSTP, EtherChannel/LACP, ACLs, and PoE. Implement IP addressing schemes, subnetting, static routing, and dynamic routing where appropriate. Troubleshoot switching loops, broadcast storms, network congestion, and connectivity failures. Design reliable network uplinks, switching architectures, and redundant network connections where required. Plan and execute switch replacements, firmware upgrades, and configuration changes. Maintain consistent switching standards and configuration documentation across company locations.4. Cisco Meraki Firewall, VPN & WAN Administration Configure, administer, and troubleshoot Cisco Meraki MX security appliances. Maintain firewall rules, NAT policies, routing, VLAN interfaces, and network segmentation. Configure and support Meraki Auto VPN and IPsec site-to-site VPN connections. Administer and troubleshoot remote-access VPN services, including Cisco AnyConnect / Cisco Secure Client. Support WAN connectivity, multiple internet service providers, failover, and load balancing. Troubleshoot VPN connectivity and performance between geographically distributed locations. Monitor firewall health, WAN performance, and network security events. Coordinate with domestic and international internet service providers to resolve service disruptions. Implement and maintain network security best practices and appropriate access controls.5. Network Troubleshooting & Operational Support Independently troubleshoot complex wired, wireless, firewall, routing, and WAN connectivity issues. Diagnose network problems involving TCP/IP, DNS, DHCP, VLANs, routing, authentication, and network security. Analyze packet captures, network logs, monitoring data, and performance metrics. Troubleshoot intermittent network failures, wireless roaming problems, packet loss, latency, and throughput issues. Provide remote technical support to facilities across multiple geographic regions and time zones. Coordinate on-site troubleshooting with local personnel when physical access is required. Perform root cause analysis and implement permanent corrective solutions. Support network connectivity for business-critical applications, operational equipment, and mobile computing devices. Participate in scheduled maintenance activities and provide support for critical network incidents outside normal business hours when necessary.6. Network Security, Documentation & Standards Maintain network segmentation, access controls, and secure connectivity between facilities. Support RADIUS, 802.1X, and network authentication integrations. Maintain network equipment firmware, configuration backups, and recovery procedures. Develop and maintain standardized network configurations and deployment procedures. Document physical and logical network architecture for all locations. Maintain accurate equipment inventories, circuit information, and infrastructure records. Implement change management procedures to minimize business disruption. Assist with network-related security investigations and remediation activities.7. Domestic & International Travel Travel to domestic and international company locations to perform network assessments, installations, upgrades, and troubleshooting. Conduct on-site wireless surveys and evaluate facility-specific network requirements. Oversee or perform installation and configuration of switches, firewalls, wireless access points, and related infrastructure. Coordinate with local facility management, contractors, and service providers. Validate network performance and functionality following installations or upgrades. Provide on-site technical assistance during significant network incidents or infrastructure projects. Work independently while traveling and manage project activities with limited on-site IT resources. Accommodate occasional work outside normal business hours to support international operations and minimize disruption to business activities.RequirementsProfessional Experience Minimum of 5 years of hands-on experience in network engineering, network administration, or a closely related infrastructure role. Minimum of 3 years of substantial experience designing, deploying, and troubleshooting enterprise or business-critical Wi-Fi networks. Demonstrated ability to independently design and implement moderately complex LAN environments. Experience supporting network infrastructure across multiple business locations. Experience performing network installations, upgrades, and troubleshooting with minimal supervision. Strong understanding of network troubleshooting methodologies and root cause analysis.Required Technical SkillsWireless Networking Strong hands-on experience with Ubiquiti UniFi wireless infrastructure and management. Advanced knowledge of RF fundamentals, wireless coverage, capacity planning, interference, channel planning, and roaming. Experience conducting wireless site surveys and validating wireless deployments. Experience troubleshooting difficult wireless connectivity and performance problems. Knowledge of WPA2/WPA3, 802.1X, RADIUS, and wireless network segmentation.Cisco Switching Strong proficiency with Cisco Catalyst switches and Cisco IOS/IOS XE. Ability to independently configure and troubleshoot switches using the command-line interface. Strong knowledge of VLANs, trunking, STP, LACP, routing, ACLs, and PoE. Ability to design and implement reliable Layer 2 and Layer 3 network architectures.Cisco Meraki Hands-on experience administering Cisco Meraki MX firewalls. Experience configuring firewall policies, routing, NAT, VPNs, and WAN connectivity. Familiarity with Meraki Dashboard monitoring and troubleshooting capabilities.Core Networking Strong understanding of TCP/IP, IPv4 subnetting, DNS, DHCP, routing, switching, and network security. Proficiency using network diagnostic tools, including Wireshark and packet capture utilities. Ability to independently troubleshoot complex network performance and connectivity problems. Knowledge of network documentation and infrastructure management best practices.Preferred Qualifications Cisco CCNA or CCNP certification. Ubiquiti wireless or enterprise networking certifications. Wireless networking certifications such as CWNA or CWSP. Experience with Ekahau, Hamina, NetAlly, or similar wireless design and analysis tools. Experience designing and supporting wireless networks in warehouses, distribution centers, or industrial facilities. Experience supporting Android handheld scanners, barcode readers, and other mobile operational devices. Experience administering network infrastructure across international locations. Familiarity with Microsoft NPS, RADIUS, and Microsoft Entra ID-related network authentication. Experience with SD-WAN, redundant internet connectivity, and multi-site VPN architectures. Knowledge of fiber-optic networking, structured cabling, and network equipment installation standards. Familiarity with network automation, scripting, or centralized configuration management.Professional Skills & Competencies Ability to work independently and take ownership of network infrastructure projects. Strong analytical, diagnostic, and problem-solving abilities. Excellent organizational, documentation, and time-management skills. Ability to coordinate technical activities across geographically distributed facilities. Strong communication skills when working with technical personnel, local management, vendors, and service providers. Ability to prioritize network incidents, maintenance, and infrastructure projects. Comfortable performing both network engineering and routine administration responsibilities. Ability to work effectively with limited supervision during domestic and international assignments. Willingness to support critical infrastructure outside normal business hours when necessary.Education & Certifications Associate's or bachelor's degree in Information Technology, Computer Science, Networking, or a related field preferred. Equivalent professional experience will be considered. Cisco CCNA certification preferred. Relevant wireless networking certifications are beneficial but not required.Demonstrated hands-on technical proficiency and relevant experience are more important than formal education or certifications.Travel & Work Requirements Ability and willingness to travel domestically and internationally as business needs require. Ability to obtain and maintain a valid passport and meet applicable international travel requirements. Ability to work occasional evenings or weekends for planned maintenance, infrastructure implementations, or critical incidents. Ability to perform on-site network equipment installation and troubleshooting, including work in network closets, equipment rooms, and warehouse environments. Ability to coordinate projects and technical support across multiple time zones.Position ExpectationsThis is a hands-on global network engineering and administration role, not an architecture-only or network monitoring position.The successful candidate must be equally comfortable designing network solutions, implementing infrastructure, troubleshooting complex problems, and performing ongoing network administration.Enterprise Wi-Fi design and troubleshooting expertise is a primary requirement. Candidates whose experience is limited to routine wireless administration or basic access point configuration will not meet the technical expectations of this position.