1 to 25 of 55 Permanent Firewall Jobs in the City of London

networking. Routing and switching technologies. VLANs. Spanning Tree Protocol (STP). TCP/IP networking. IP addressing and subnetting. DNS, DHCP and VPN technologies. Firewall administration and troubleshooting. Network monitoring and diagnostics. You should be comfortable discussing networking concepts in detail and able to confidently troubleshoot issues at Layers ...

security while having the opportunity to recommend and implement improvements across the environment. Responsibilities for the IT Infrastructure Engineer: Deliver infrastructure projects including firewall migrations, domain controller upgrades, office moves and AV deployments Manage Windows Server, VMware vSphere/ESXi and NetApp storage Support networking and security across firewalls, VPNs ...

DHCP, VPN, LDAP, SSO). Microsoft Exchange, Office365, and/or Google G Suite experience. MS Windows Server/workstations and command line interface. Firewall experience, particularly with ingress/egress filtering is an asset. Basic PowerShell, Perl, VBScript or SQL knowledge, and the ability to create and run scripts. ...

Directory, Exchange Server, VMware software, File Server; Good knowledge on TCP/IP and networking management, and the ability to configure Cisco Switch, Router, Firewall, wireless device; Excellent verbal and written communication skills in Mandarin and English essential; Experience in problem solving and troubleshooting; Proven ability to collaborate effectively with ...

including PIM/Conditional Access), Azure Key Vault, Azure Policy. o Security Operations: Microsoft Sentinel, Defender for Cloud. o Networking: Azure vNets, Peering, Azure Firewall, WAF, Private Link, ExpressRoute. o Compute & Storage: Virtual Machines, App Services, Storage Accounts. Infrastructure as Code (IaC): Deep, hands-on expertise with Terraform is essential. ...

hardening Performing security reviews and configuration hardening across Microsoft 365 and Entra ID, Microsoft Azure, Amazon Web Services, on‐premise Active Directory, and perimeter firewall estates. Conducting firewall security assessments across multiple vendor platforms: rule base review, management plane exposure, VPN and remote access configuration, IPS/IDS posture, logging … network engineer prior to moving into security. Network security: Cisco (including Firepower), Palo Alto, FortiGate, SonicWall, Check Point, WatchGuard, Sophos, Zyxel and F5. Firewall policy design and review, IPS/IDS, site-to-site and remote access VPN, and SSL/TLS inspection. SASE and Zero Trust: Netskope One, Secure ...

infrastructure disciplines, e.g. Microsoft Technologies, Red Hat/Linux, VMWare, ESX, vSphere, Citrix, IBM Websphere MQ, Oracle, DB2, LAN/WAN/MAN, Routing, Firewall, Wireless, IDS/IPS, WAN optimization, Proxy, VPN services, Load Balancing and IT Security Experience or technical knowledge of toolsets and infrastructure management solutions Experience ...

Foundational knowledge of hypervisors like VMware ESXi/KVM Foundational knowledge of AWS Cloud Computing Platforms Working experience of Routing & Switching and NexGen Firewall Familiarity with Google Suite, Service-Now What We’ll Offer Competitive Salary Performance-based bonus On-call compensation Unlimited annual leave policy Best in class private ...

Main Aspects of the role: Work within Infrastructure team in supporting and delivering all aspect of BAU and support services Design, build and implement firewall solutions from perimeter to DMZ roles Support IPS deployment for Europeanbranches Develop, maintain and deliver global standards to all networking devices Remediate Penetration Test results ...

role: Strong technical knowledge including Microsoft Technologies, Red Hat Linux, Data Centre and Cloud, Enterprise networking, WAN/LAN/WLAN, Routing, Firewall, IDS/IPS, WAN optimization, Proxy, VPN services, Load Balancing, IT Security Experience designing, integrating and managing complex infrastructure solutions Knowledge of networking, storage and server hardware ...

Main Aspects of the role: Work within Infrastructure team in supporting and delivering all aspect of BAU and support services Design, build and implement firewall solutions from perimeter to DMZ roles Support IPS deployment for European branches Develop, maintain and deliver global standards to all networking devices Remediate Penetration Test ...

Android, maintain compliance policies, set up Windows Autopilot, macOS Automated Device Enrollment and Apple Business Manager, and harden endpoints with BitLocker, FileVault, Firewall and ASR rules. Platform hardening: maintain security baselines across Exchange Online, SharePoint, OneDrive, Teams, Viva and Copilot, secure mail flow and OME, audit SPF, DKIM and DMARC ...

platforms such as SCCM, Ivanti and ManageEngine Develop high- and low-level designs, implementation plans, technical documentation and operating procedures Troubleshoot complex endpoint, network, firewall, proxy, certificate and platform connectivity issues Support vulnerability management, security hygiene and compliance improvement programmes Integrate Tanium with surrounding technologies such as ServiceNow, CMDB, identity ...

Experis Austria is recruiting a Network Engineer for a London-based, remote role. You will design, build and manage DC network environments and contribute to automation initiatives while supporting security-sensitive operations. You will work ...

recovery, and capacity planning Manage Oracle RAC, Data Guard, and ASM environments Support Oracle Advanced Security features including TDE, audit vault, and database firewall Oracle E-Business Suite (EBS) Administer and support Oracle EBS environments (R12.1, R12.2) including patching, cloning, and upgrades Perform EBS cloning (full and rapid clone ...

Salary: £78,000-£84,000 dependent on skills, knowledge & experience. Including excellent benefits such as free travel across TfL services, Final Salary Pension and 30 days annual leave. Location: North Greenwich, London - Hybrid Working 50 ...

support and BAU infrastructure management across Windows, virtualization, storage and security in a multi-site environment of about 900 UK users. Responsibilities include delivering firewall migrations, domain controller upgrades, and office moves alongside managing VMware, NetApp storage, Exchange Online and Intune. #J-18808-Ljbffr ...

network forensics, and EDR/EPP technologies. Skilled in forensic acquisition and analysis of physical and virtual systems. Advanced understanding of networking, routing, and firewall operations. Working knowledge of storage technologies such as RAID, NAS, SAN, Fiber Channel, iSCSI, and NFS. Ability to analyze and interpret logs from various sources. ...

Cloud Infrastructure Engineer - Azure & On-Premises London 4 days a week 3 month contract We're looking for an experienced Cloud Infrastructure Engineer to join a small, collaborative technology team supporting a hybrid infrastructure environment ...

join its London-based operations. The role emphasizes BAU support, secure design, and scalable solutions for a global environment. The candidate will lead firewall design, IPS deployment, and the migration to a refreshed security framework while maintaining high-availability networking across data centres and branch interconnectivity. #J-18808-Ljbffr ...

years proven track record and be able to support BAU, participate in design of scalable solutions, and maintain thorough networking diagrams. The role covers firewall design, VPN IPSEC, data center interconnectivity, and support across European sites. Strong diagnostic skills and audit readiness are required; salary £45k–£55k with banking benefits. ...

Voice implementations and topologies PBX and Analogue platform interoperability SIP Connectivity Contact Centre Solutions & Call Recording Understanding of Public, Private and Hybrid Cloud environments Firewall, network topologies, infrastructure and VPN Technologies Switch administration & configuration (VLANs, trunks, stacking) Qualities: A personable and well‐presented professional with outstanding verbal and written communication ...

Professional Services Engineer Location: Central London (3 days per week onsite at a client site, 2 days remote) Full Time | Permanent Atrium Associates are proud to be supporting our client in the recruitment of an ...

Secure in London is seeking an experienced Network Security Engineer to join our 24x7 NOC. You will support a globally operating bank, handling configurations, firewall policies, and high-priority incidents while coordinating with internal teams and the customer. Strong English communication and L2/L3 support experience are essential ...

Network Support Team Lead (Microsoft & Infrastructure) Location: Central London (Office/Client Based) Salary: £45,000 - £55,000 + Training & Career Development An established and growing IT Infrastructure and Managed Services Provider is seeking an ...