Implement, and administer enterprise network infrastructure including routers, L2/L3 switches, wireless solutions, load balancers, and remote access technologies to ensure high availability and optimal performanceImplement, and maintain security infrastructure across multiple vendors including:Next-Generation Firewalls (NGFW)L3/L4 FirewallsWeb Application Firewalls (WAF)Identity and Access Control solutionsSecure web gateways and security proxiesSASEManage network segmentation, zoning, VPN connectivity, cryptography standards, and DoS/DDoS protection mechanisms to ensure compliance with security standards and best practicesAdminister and support enterprise voice and collaboration platforms including Avaya, Cisco and Contact Center solutionsMonitor network and security infrastructure using enterprise monitoring and logging tools, investigate incidents, perform root cause analysis, and take corrective actions proactivelyLead troubleshooting and resolution of complex network, communication, and security incidents while providing third-level support for critical business servicesEnsure proper documentation, configuration management, backup validation, disaster recovery readiness, and adherence to change management processesCollaborate with internal teams, vendors, and outsourced support providers to ensure service availability, operational excellence, and successful project deliveryParticipate in infrastructure projects, upgrades, migrations, audits, and security improvement initiativesTechnical Skills & ExperienceStrong hands-on experience with enterprise networking technologies including routing, switching, and wireless technologiesStrong experience with enterprise security solutionsExperience with web application firewalls, load balancers, reverse proxies, and secure remote access technologiesGood understanding of cybersecurity frameworks, segmentation models, zero-trust concepts, and security operationsExperience in enterprise monitoring, logging, and troubleshooting toolsStrong analytical, troubleshooting, and incident management skillsExperience working in enterprise environments with high availability and strict compliance requirementsRequirementsQualificationsBachelor's degree in Information Technology, Computer Science, Engineering, or a related fieldProfessional certifications are highly preferred, such as:CCNP Enterprise / SecurityPCNSENSECISSPF5 Certifications 5-7 years of experience in enterprise network, security, and communication administration