1 of 1 Permanent Network Security Jobs in Essex

seeking an experienced Third Line Engineer to support complex infrastructure environments and deliver high-quality IT services to a diverse client base. Key Responsibilities: Design, implement, and maintain enterprise network infrastructure across LAN/WAN environments. Lead core and edge network upgrades, including: OSPF and BGP routing VLAN segmentation and Layer 2/3 switching Multi-Link Aggregation … on Mikrotik , Cisco , and Juniper devices Configure and manage firewalls, VPNs, and secure remote access. Monitor and optimize network performance, availability, and security. Troubleshoot and resolve complex routing, switching, and connectivity issues (Tier 3). Assist with secure network integration for Microsoft 365 services (DNS, SPF, mail flow). Collaborate with project teams to deliver tailored, high-performance … network solutions. Skills & Experience: Expert-level experience with OSPF , BGP , and enterprise routing/switching . Strong knowledge of firewall configuration and network security policies (Mikrotik, Cisco, Juniper). Hands-on experience with VLAN design , link aggregation , and redundancy protocols . Proficiency in supporting hybrid network environments (on-prem/cloud). Solid understanding of DNS More ❯