1 to 25 of 238 Firewall Jobs in the South East

Cyber Essentials, NIST, ISO 27001. An understanding of network security and compliance in regulated environments. Strong networking knowledge (LAN, WAN, DNS, DHCP, VPN, TCP/IP). Proficiency in firewall and load balancer technologies for secure environments. Hands-on experience with virtualization platforms (VMware, Citrix Xen) and backup solutions (Veeam or similar). Experience with monitoring tools (SolarWinds SentryOne, Zabbix More ❯

/Hybrid including Defender, Intune and security policies * Server Virtualisation (Hyper-V/VMware) * Cloud services including Azure and AWS * LAN/VLAN/WAN (routers, switches, Wi-Fi, firewall) * Communications (VOIP, Leased Lines) * Dell/HP Server Hardware * Storage infrastructures SAN, NAS, DAS * Backup and DR technologies (experience of Veeam and Datto) * SharePoint management and support * IT Security including More ❯

/Hybrid including Defender, Intune and security policies * Server Virtualisation (Hyper-V/VMware) * Cloud services including Azure and AWS * LAN/VLAN/WAN (routers, switches, Wi-Fi, firewall) * Communications (VOIP, Leased Lines) * Dell/HP Server Hardware * Storage infrastructures SAN, NAS, DAS * Backup and DR technologies (experience of Veeam and Datto) * SharePoint management and support * IT Security including More ❯

on information security, cybersecurity, and data security, including a wide scope, such as physical security of computer rooms, operating system level security of Windows and Linux, network security of firewall and other security devices, application security both development and testing phrases, terminal security, backup security, third party and supply chain security of IT service provider.Liaison with the Head Office, Security More ❯

are kept up to date. What you'll need to succeed Essential Skills: Strong knowledge of resilient LAN and WAN infrastructure/technologies: Physical layer - Switching/Routing/Firewall or Virtual Layer - MPLS/VRF/SD-WAN Hypervisor Virtual network layers: Application layer - IPv4&6/DHCP/DNS/Active Directory Services Excellent knowledge of the Microsoft More ❯

Exchange Online, SharePoint Online, Teams and OneDrive. Microsoft Azure administration and support. Virtualisation technologies, including VMware and Microsoft Hyper-V. Networking principles including VLANs, LAGS, VPN's and routing. Firewall products such as SonicWALL, PaloAlto , Fortinet and WatchGuard. Backup & disaster recovery solutions such as StorageCraft, Veeam and N-Able, etc. A flair for troubleshooting, communication, and exceptional customer service. Excellent More ❯

policies. Install, configure, and update applications. Diagnose and repair basic hardware faults (PCs, laptops, printers). Troubleshoot LAN/WAN issues, VPN connectivity, and Wi-Fi problems. Assist with firewall and router configurations under guidance. Monitor client systems via RMM dashboards. Apply patches and updates to maintain security compliance. Maintain accurate records of fixes, configurations, and client environments. Update knowledge More ❯

PC hardware and software setup/configuration – Including OS installation, driver management, and troubleshooting hardware failures. Fundamental understanding of networking – TCP/IP, DNS, DHCP, VPN, VLANs, and basic firewall configurations. ITIL framework awareness – Understanding of incident, problem, and change management processes within an ITIL-based service environment. Security awareness and best practices – Understanding of cybersecurity fundamentals, MFA, endpoint security More ❯

for the Service Desk Team * Set up and configure Local Area Networks (LANs), including hardware deployment and support * Coordinate with third-party MSPs for network and infrastructure management * Manage firewall operations and connectivity with ISPs * Oversee network IP addressing and VPN setups * Support business continuity through proactive incident management * Rapid deployment of site connectivity solutions, including 4G routers * Monitor network More ❯

secure web gateways, and cloud security principles. Expertise in networking protocols (TCP/IP, DNS, HTTP/HTTPS), VPN technologies, and identity integration (SAML, OAuth, LDAP). Familiarity with firewall policies , proxy architecture, SSL inspection, and traffic forwarding methods. Experience integrating Zscaler with identity providers (e.g., Azure AD, Okta) and endpoint management solutions . Ability to analyze logs, troubleshoot complex More ❯

What you’ll bring: Experience in managing and maintaining Splunk solution. 3rd/4th line Network Security experience support . in an Enterprise environment working to challenging SLAs. Advanced Firewall and Proxy administration (to include install, configurations and fault finding). Recent experience of working within security environments. Understanding of Networks, Routers, DMZ and Switches. Extensive Core Linux Or MS More ❯

and security practices (IPSec, SSL-VPN, NAT, GRE) Hands-on experience with cloud infrastructure operations and troubleshooting customer tech stacks. Familiarity with SIEM tools, vulnerability management, malware analysis, and firewall configurations Ability to communicate complex technical solutions to a wide range of audiences, both technical and non-technical Skilled in Python, JSON, YAML, Bash, or other relevant scripting languages More ❯

/WAN and wireless network solutions using Cisco technologies. Manage, configure, and optimise Cisco Meraki environments, including SD-WAN, wireless, switching, and security appliances. Maintain secure network operations through firewall management, access control, segmentation, and threat mitigation. Monitor and troubleshoot network performance using industry-standard tools. Collaborate with server, storage, and infrastructure teams to support end-to-end service delivery. More ❯

/WAN and wireless network solutions using Cisco technologies. Manage, configure, and optimise Cisco Meraki environments, including SD-WAN, wireless, switching, and security appliances. Maintain secure network operations through firewall management, access control, segmentation, and threat mitigation. Monitor and troubleshoot network performance using industry-standard tools. Collaborate with server, storage, and infrastructure teams to support end-to-end service delivery. More ❯

/WAN and wireless network solutions using Cisco technologies. Manage, configure, and optimise Cisco Meraki environments, including SD-WAN, wireless, switching, and security appliances. Maintain secure network operations through firewall management, access control, segmentation, and threat mitigation. Monitor and troubleshoot network performance using industry-standard tools. Collaborate with server, storage, and infrastructure teams to support end-to-end service delivery. More ❯

/WAN and wireless network solutions using Cisco technologies. Manage, configure, and optimise Cisco Meraki environments, including SD-WAN, wireless, switching, and security appliances. Maintain secure network operations through firewall management, access control, segmentation, and threat mitigation. Monitor and troubleshoot network performance using industry-standard tools. Collaborate with server, storage, and infrastructure teams to support end-to-end service delivery. More ❯

solutions Produce documentation and contribute to knowledge sharing within the consultancy Skills & Experience Strong background in Cisco, Fortinet, or Palo Alto networking technologies Proven experience with routing, switching, and firewall management Solid understanding of network security principles and compliance standards Exposure to cloud networking (Azure/AWS) highly desirable Excellent troubleshooting skills and ability to work in client-facing environments More ❯

depending on experience and skills) START: ASAP LOCATION: London Senior Infrastructure Engineer Main Responsibilities: Operation, maintenance and troubleshoot Linux/Windows server, NW switch and Firewall User administrative work (account management, group management, etc.) Witnessing installation servers, NW devices by HW vendor at a datacentre near London Supporting users, troubleshooting issues and contacting to hardware/software vendor Document operational More ❯

communication at all times. Technical Responsibilities Troubleshooting servers, cloud services, and virtualised environments. Active Directory & Group Policy administration. Exchange administration. Networking knowledge including TCP/IP, VLANs, and firewalls. Firewall experience (Fortigate, Cisco, SonicWall, WatchGuard). Backup technologies including Azure and Veeam. Supporting Hyper-V, VMware, AVD, and RDS. General support of PCs, printers, scanners, switches, and other networked devices. More ❯

Juniper technologies, with certifications such as CCNA , CCNP , or JNCIS-ENT . Knowledge of routing protocols , VRFs, VPNs, IDS, IPS, and network security controls. Experience with F5 , Cisco Secure Firewall , and Gigamon . Strong design and troubleshooting background across enterprise and multi vendor networks. Understanding of TCP/IP , IPv4/IPv6, VLANs, and data centre networking. Experience using tools More ❯

a day +Inside IR35 Skills: +Cisco +Aruba +LAN/WAN +SC clearance This Network Engineering role focusses on implementation of Network services and will cover LAN, WAN, Firewall, and Security infrastructures, with a key focus on Cisco and Aruba. Expectation is the successful candidate will have 5 to 10 years proven work experience in a challenging, multi-vendor Data centre More ❯

a day +Inside IR35 Skills: +Cisco +Aruba +LAN/WAN +SC clearance This Network Engineering role focusses on implementation of Network services and will cover LAN, WAN, Firewall, and Security infrastructures, with a key focus on Cisco and Aruba. Expectation is the successful candidate will have 5 to 10 years proven work experience in a challenging, multi-vendor Data centre More ❯

IP, VLANs, routing protocols like BGP/OSPF/ISIS, MPLS) Hands-on experience with enterprise networking equipment — Fortinet, Cisco, Arista, Juniper, Palo Alto, HP, or Dell Exposure to firewall configuration and IPsec VPN setup Basic Linux/Unix administration; Python scripting desirable Relevant certifications (CCNA, Network+, etc.) preferred Strong communication, troubleshooting, and multitasking skills Must have the right to More ❯

pseudo WAN connections * Engineer and manage Get VPN routers, certificate servers, and site-to-site/remote VPNs * Integration/admin of RADIUS/AAA across devices * Own ASA firewall (DMZ), Cisco Firepower/FMC (edge security), user policies, outbound/inbound/NAT rules, TALOS * Administer DUO MFA for VPN/admin access * Enforce wired/wireless 802.1X/ More ❯

Expertise in both remote and on-site support Technical skills should include: Cisco Expertise: Strong knowledge of Cisco routers and switches Networking: TCP/IP connectivity and IT security Firewall: Configuration, management, and reporting (Fortinet) Windows Server: 2016, 2019, and 2022 Communication: High-level written and verbal skills Virtualisation: Windows Hyper-V Identity & Access: Active Directory/Azure AD Administration More ❯