1 to 25 of 136 Firewall Jobs in the South East

sites, ensuring high availability, resilience, and performance. Key Responsibilities Manage, maintain, and optimise the organisation's network infrastructure Oversee LAN, WAN, Wi-Fi, VPN, firewall, and internet connectivity environments Lead network security initiatives including monitoring, patching, access control, and incident response Support and develop cloud and hybrid infrastructure connectivity Manage ...

desktop and device support • DNS and DHCP • Networking fundamentals: firewalls, routing, NAT, VLANs and switching • Wi Fi technologies, including UniFi or equivalent enterprise platforms • Firewall management, ideally SonicWall or similar • VPN technologies, including SSL and site to site • PC and laptop hardware diagnostics and build Desirable Skills • Jamf ...

desktop and device support • DNS and DHCP • Networking fundamentals: firewalls, routing, NAT, VLANs and switching • Wi Fi technologies, including UniFi or equivalent enterprise platforms • Firewall management, ideally SonicWall or similar • VPN technologies, including SSL and site to site • PC and laptop hardware diagnostics and build Desirable Skills • Jamf ...

with clients to understand and resolve technical issues Key Skills & Experience: Strong knowledge of networking fundamentals (TCP/IP, DNS, DHCP, VPNs) Experience with firewall configuration and network security Hands-on experience with VMware ESXi or similar virtualization platforms Solid understanding of Windows OS (desktop and server) Excellent troubleshooting ...

Group Policy. Strong general networking skills (CLI, Subnetting, NAT). Good understanding of DNS. Router configuration and support experience (Cisco, HP, Draytek). Firewall configuration and support experience (Watchguard, SonicWALL). HP ProLiant and Dell PowerEdge Server Hardware support experience. VMware and Hyper V support experience (VCP an advantage). ...

Cisco networking fundamentals. Okta and SSO authentication. Infrastructure as Code, including Terraform. DevOps and automation practices. Role-Based Access Control (RBAC). Networking and firewall technologies. Why Join? This contract opportunity offers the chance to play a key role in strengthening the client's cloud and modern workplace capability within ...

solutions such as SentinelOne/Defender for endpoint Layer 2 Switch configuration VLANs, trunks, access ports, POE Racking, cabling, hardware installation eg firewall installation, cabinet patching and tidying Wifi Protocol general knowledge DNS records, email filtering/connectors Firewalls, access control and NAT Endpoint management policy enforcement, device control ...

NIST. Required Experience & Skills 5–7+ years of experience designing, implementing and supporting medium to large enterprise networks (10,000+ users). Palo Alto firewall platforms (Pan-OS, Threat Prevention, User-ID, GlobalProtect, HA, Prisma Access) Automation and Scripting (Python/Ansible/Terraform Strong hands-on experience with Cisco ...

NIST. Required Experience & Skills 5–7+ years of experience designing, implementing and supporting medium to large enterprise networks (10,000+ users). Palo Alto firewall platforms (Pan-OS, Threat Prevention, User-ID, GlobalProtect, HA, Prisma Access) Automation and Scripting (Python/Ansible/Terraform Strong hands-on experience with Cisco ...

paths, and workstations. Support enterprise networking across Extreme, Cisco, Dell, and HPE switching, including configuration and fault resolution. Assist with Juniper and Palo Alto firewall environments and resolve network connectivity issues. Apply core networking principles including VLANs, routing basics, STP, ARP, link aggregation, and network segmentation. Maintain DNS, DHCP … physical hardware management. Strong working knowledge of Extreme, Cisco, Dell, and HPE switching platforms, including configuration, troubleshooting, and performance monitoring. Understanding of enterprise firewall concepts with exposure to Juniper and Palo Alto firewall technologies. Ability to diagnose complex network issues impacting servers, storage, virtual machines, authentication paths, and workstation connectivity. ...

pressure environments Excellent communication and documentation skills Security Requirements: Must hold active SC Clearance Desirable: Experience working in secure or government environments Exposure to firewall technologies and network security principles Relevant certifications (e.g. JNCIA/JNCIS, Extreme certifications, CCNA/CCNP ...

sites at short notice. Infrastructure and Network support: Install, configure, and maintain Windows Server environments (2016/2019/2022). Configure and manage firewall platforms (hardware and software-based). Maintain virtualised environments using platforms such as VMware ESXi and Microsoft Hyper-V. Customer Repairs (RMAs): Perform root cause ...

environments. In this role, youll: Design, deliver, and support robust LAN and large-scale WAN environments Translate application-specific needs into precise and secure firewall policies Experiment, test, and validate emerging technologies in a lab/POC setting Apply Secure-by-Design principles throughout network solutions Core Experience Required Solid ...

this role, you'll: Design, deliver, and support robust LAN and large-scale WAN environments Translate application-specific needs into precise and secure Firewall policies Experiment, test, and validate emerging technologies in a lab/POC setting Apply Secure-by-Design principles throughout network solutions Core Experience Required Solid background ...

this role, you'll: Design, deliver, and support robust LAN and large-scale WAN environments Translate application-specific needs into precise and secure Firewall policies Experiment, test, and validate emerging technologies in a lab/POC setting Apply Secure-by-Design principles throughout network solutions Core Experience Required Solid background ...

Background You'll bring strong hands-on experience across: Infrastructure VMware/vSphere RHEL & Windows Server Trellix SIEM platforms Linux & Scripting Shell scripting REGEX Firewall configuration Microsoft Stack Active Directory DNS RDS Applications & Protocols LDAP Email, Chat & File standards Web & Chat protocols XML & JSON schema LDIF TLS server/client ...

Azure administration and troubleshooting. Windows Server - solid working knowledge and hands-on troubleshooting experience. Networking fundamentals - routing, switching, VLANs, LAN/WAN. Firewall experience - SonicWall is advantageous, but equivalent experience considered. Endpoint and security tooling - Sophos AV, Intune, MDR (or equivalent products). Unifi and/or HP switching experience. ...

task and see it through to completion. Set yourself apart: ITIL qualification desirable. Full clean driving license is preferable. Palo Alto experience Checkpoint experience Firewall Orchestration ...

connectivity tests: VLAN segmentation, IP addressing, DHCP leasing, DNS resolution, routing behavior, and switch port configurations. Validate QoS/traffic shaping, ACLs, and firewall rules affecting application reachability. Test redundancy and failover (e.g., dual links, LAG, spanning tree behavior, HA pairs). Perform latency, jitter, throughput, and packet loss validation ...

security processes Familiarity with pattern matching techniques and regular expressions (Regex), particularly within security or antivirus tooling Configuration and management of the standard RHEL firewall Exposure to Linux-based security tooling and antivirus technologies Networking & Gateway Technologies Citrix NetScaler Wireshark Understanding of Gateway appliances and associated software Knowledge of secure ...

security processes Familiarity with pattern matching techniques and regular expressions (Regex) , particularly within security or antivirus tooling Configuration and management of the standard RHEL firewall Exposure to Linux-based security tooling and antivirus technologies Gateway Technologies Understanding of Gateway appliances and associated software Knowledge of secure communications protocols , including messaging ...

Line tickets and assist in resolving more complex technical issues. Troubleshoot and support: Windows desktop environments Microsoft 365 & Exchange Networking fundamentals (LAN, VPNs, firewall configuration) Hardware diagnostics and troubleshooting Assist with server maintenance, system upgrades, and infrastructure improvements. Work closely with 1st Line engineers to reduce repeat issues and improve ...

telecom security principles. Network & Platform Security Provide security inputs for telecom network components (4G/5G core, transport networks, supporting platforms). Review firewall rules, network flows, privileged access paths, and secure connectivity models. Ensure alignment with network security standards, segmentation, and least privilege access. Governance & Stakeholder Engagement ...

IPSEC. Alongside project work, youll support the existing network estate where neededtroubleshooting issues across WAN environments, analysing logs, and resolving more complex routing or firewall-related problems. Youll also get involved in maintaining and improving network security, working with technologies such as FortiManager and FortiAnalyzer, and ensuring best practice across ...

modern technologies and architectures, including virtualisation, cloud computing, and serverless deployments. Hands-on experience with Microsoft Azure, Microsoft Defender, Microsoft 365 security, and enterprise firewall technologies. Strong understanding of operating system security and system-hardening practices, including CIS benchmarks. Experience working with information security frameworks and regulatory standards such ...