1 to 25 of 159 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 ...

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 ...

Office 365 Microsoft Exchange/Outlook administration VMware/Hyper-V Data backup solutions -VEEAM or equivalent Networking fundamentals - LAN, WAN, VPN, Wi-Fi, firewall configuration Strong PC hardware Software troubleshooting Excellent communication skills Professional, client-facing manner Location The role is primarily field-based across London and client sites ...

ADFS, Group Policy, DNS, Trusts). SQL Server/MySQL Administration (Availability Groups, TDE, Backup & Restore). SharePoint Admin, Cisco/Juniper Firewall Admin, Load Balancer Configuration (BigIP F5, HAProxy). Scripting using PowerShell, Bash, YAML, and Python. Email Support (Dovecot, Postfix, Spam Prevention, Mail Routing) Web Server Support ...

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 ...

Terraform. Experience with CI/CD tools and practices. Solid scripting skills using Python, Bash, or PowerShell for automation of operational tasks. Networking including firewall principles, routing, package filtering, and WAF. Familiarity with monitoring, logging, and alerting tools (e.g., CloudWatch, Prometheus, Grafana). Experience with a public cloud provider (preferably ...

Terraform. Experience with CI/CD tools and practices. Solid scripting skills using Python, Bash, or PowerShell for automation of operational tasks. Networking including firewall principles, routing, package filtering, and WAF. Familiarity with monitoring, logging, and alerting tools (e.g., CloudWatch, Prometheus, Grafana). Experience with a public cloud provider (preferably ...

troubleshooting• Virtualisation (Ideally with Hyper-V and integration with Azure), SANs and other related technologies• Backup Product Sets such as Veeam and Azure Backup• Firewall technologies such as Palo Alto• Leading migration projects• Strong documentation skills eg. PCI Compliance, ISO27001 etc• Great communication skills (in person and via telephone) - excellent ...

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 ...

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 Gateway Technologies Understanding of Gateway appliances and associated software Knowledge of secure communications protocols , including messaging ...

Telephone systems WAN Traffic Management and Path Selector configuration, such as, Kerio, Peplink, Sophos and Cisco Wi-Fi coverage analysis & mapping/heatmaps Firewall configuration and implementation Fault finding and commissioning skills are compulsory Use of hand tools, network & telecom test equipment Microsoft products such as Word, Excel ...

these through internal and customer approval processes Requirements: Network specific certification from Cisco, Aruba, Juniper or similar at minimum CCNP level or equivalent NG Firewall experience with Palo Alto, Fortinet, Checkpoint, preferably certified at CCSE or equivalent level Experience in one of more of the following would be highly advantageous ...

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 ...