20 of 20 DNS Jobs in Central London

as BCS, IEEE, ISACA, (ISC) , CompTIA, or ITIL/AXELOS. Skilled in LAN/WAN management, VLANs, routers/switches, VPNs (Azure or Always On), firewall configuration, and protocols (DNS, DHCP, TCP/IP). Proficient in PowerShell for automation and reporting. Knowledge of Power Automate and CI/CD pipelines. Knowledge of disaster recovery and business continuity planning. Experience More ❯

VLANs, VPNs, and firewall configuration (Cisco, Fortinet, Palo Alto, etc.). Hands-on experience with cloud platforms (Microsoft Azure, AWS, or equivalent). Familiarity with Active Directory, Azure AD, DNS, DHCP, Group Policy, and M365 environments. Strong understanding of cybersecurity principles, access control, and encryption standards. Excellent communication, stakeholder engagement, and documentation skills. Desirable: Relevant certifications (CCNA, CCNP, CompTIA Network+ More ❯

VLANs, VPNs, and firewall configuration (Cisco, Fortinet, Palo Alto, etc.). Hands-on experience with cloud platforms (Microsoft Azure, AWS, or equivalent). Familiarity with Active Directory, Azure AD, DNS, DHCP, Group Policy, and M365 environments. Strong understanding of cybersecurity principles, access control, and encryption standards. Excellent communication, stakeholder engagement, and documentation skills. Desirable: Relevant certifications (CCNA, CCNP, CompTIA Network+ More ❯

WiFi access points. Experience of network switches and firewalls, internally used are Juniper and Palo Alto but other experience is OK. Supporting Windows Services such as certificate services, AD, DNS, NTP, GPOs and DHCP Configuring firewalls, routing and switching, to maximise network efficiency and security Maximising network performance through ongoing monitoring and troubleshooting Maintaining a schedule of updates to the More ❯

WiFi access points. Experience of network switches and firewalls, internally used are Juniper and Palo Alto but other experience is OK. Supporting Windows Services such as certificate services, AD, DNS, NTP, GPOs and DHCP Configuring firewalls, routing and switching, to maximise network efficiency and security Maximising network performance through ongoing monitoring and troubleshooting Maintaining a schedule of updates to the More ❯

and macOS Solid understanding of LAN/WAN/Wi-Fi networking Proficiency in Windows Server 2012/2016/2019 and technologies like: Active Directory, Hyper-V, DNS, DHCP, DFS, ADFS, FAP Knowledge of PC setup , TCP/IP networking and system configuration Experience with cloud platforms such as Office 365, Google Workspace, AWS or Azure Why Join? Hybrid More ❯

and macOS Solid understanding of LAN/WAN/Wi-Fi networking Proficiency in Windows Server 2012/2016/2019 and technologies like: Active Directory, Hyper-V, DNS, DHCP, DFS, ADFS, FAP Knowledge of PC setup , TCP/IP networking and system configuration Experience with cloud platforms such as Office 365, Google Workspace, AWS or Azure Why Join? Hybrid More ❯

in line with the latest technical development and to fulfill business needs; Oversee the operation and management of remote working systems; Make configuration of Active Directory and related services DNS, DHCP, DFS and GPOs; Manage enterprise network and storage server(s); Assist Department Head to ensure that information security complies with established policies and standards; Implement, update and monitor disaster More ❯

security teams. Maintain thorough documentation and support knowledge sharing across teams. Skills & Experience Required Strong track record in Azure networking and cloud infrastructure. Excellent knowledge of TCP/IP, DNS, DHCP, routing, firewalls, and related concepts. Experience with Azure services: VNet, App Gateway, Firewall & WAF, Network Watcher, Load Balancer. Hands-on scripting/automation skills with PowerShell, Azure CLI, and More ❯

for deploying and troubleshooting Flexera agents across AWS and Azure environments. Apply infrastructure-as-code practices (Terraform, PowerShell) to automate deployment and standardise infrastructure operations. Overcome advanced networking challenges (DNS, static routes, firewall rules, security protocols) to enable agent-to-server connectivity. Work across legacy and bespoke environments , ensuring agent deployment succeeds in inconsistent architectures. Contribute to estate-wide architectural More ❯

Infrastructure Services Analyst, Azure IaaS, DNS, DHCP, Microsoft 365, 12 month FTC, Part Remote Infrastructure Services Analyst required to work for a Professional Services company based in the City of London. However, this will be half remote/half officed based. This is initially a 12 month fixed term contract but has every opportunity to go permanent. Also, the role More ❯

Maintain server rooms and ensure operational efficiency * Develop and implement business processes and documentation Requirements: * Strong knowledge of Azure infrastructure management * Strong in network protocols (TCP/IP, DHCP, DNS, etc.), ideally candidates must hold a CCNA/CCNP etc. * Experience with FortiGate Firewalls and Windows Operating Systems * Familiarity with WAN, LAN, VPN, and wireless networks 4 days per week More ❯

Windows Desktop (10,11): Install, configure, and troubleshoot issues. Microsoft 365 : Basic understanding and troubleshooting of Microsoft 365 software. Networking : Understanding and troubleshooting of networking, IP addresses, MAC addresses, DNS, internet connection issues, Wi-Fi issues, and firewall configuration. Printers : Understanding of printer errors, configurations, and reinstalling drivers. Project Installations : Installation of desktops, laptops, workstations, monitors, printers, routers, firewalls, switches More ❯

Desirable Skills & Certifications Aruba Certified Switching Associate (ACSA) or Aruba Certified Mobility Associate (ACMA). Juniper JNCIA or equivalent certification. Experience with Aruba ClearPass (NAC). Familiarity with Infoblox (DNS/DHCP/IPAM). Awareness of SASE solutions, particularly Cato Networks. Exposure to firewall technologies such as Palo Alto. Familiarity with AI-driven networking platforms such as Juniper Mist. More ❯

languages such as Python, C++, or assembly for developing analysis tools and scripts. Expertise in creating and maintaining YARA rules. Strong understanding of networking protocols, including TCP/IP, DNS, and how malware utilises these protocols. Ways of working Focusing on Clients and Customers. Working as One NCC. Always Learning. Being Inclusive and Respectful. Delivering Brilliantly. Our company At NCC More ❯

languages such as Python, C++, or assembly for developing analysis tools and scripts. Expertise in creating and maintaining YARA rules. Strong understanding of networking protocols, including TCP/IP, DNS, and how malware utilises these protocols. Ways of working Focusing on Clients and Customers. Working as One NCC. Always Learning. Being Inclusive and Respectful. Delivering Brilliantly. Our company At NCC More ❯

On-site Requirement:Tuesdays plus additional days as needed. Key Responsibilities VLAN, subnet, and security zone migrations Switch and WiFi configuration, installation, and replacement 802.1x and NAC deployment DDI (DNS, DHCP, IP) cleansing and consolidation Firewall and Citrix Netscaler upgrades (including Panorama and MFA) Monitoring and alerting setup Technical documentation for approval boards Essential Skills 5+ years in senior network More ❯

Platform/DevOps Engineer Contract: 6-Month Contract (Remote) Industry: Financial Services Technology About the Role We're seeking a skilled Platform/DevOps Engineer to help manage and evolve the infrastructure that powers a broad suite of proprietary and More ❯

you a versatile contributor in a fast-paced, collaborative environment supporting cutting-edge technology. Role and Responsibilities Administer, operate, and maintain enterprise network infrastructure, including LAN/WLAN, VPNs, DNS/DHCP/IPAM, firewalls, and cloud networking (AWS, GCP). Proactively monitor and troubleshoot performance, availability, and connectivity issues, taking ownership of incident resolution end-to-end. Support systems … outside regular business hours. Skills and Experience Experience in enterprise network operations and troubleshooting. Proven ability to configure and support LAN/WLAN environments, routing/switching, VLANs, and DNS/DHCP. Knowledge of routing protocols and networking technologies such as BGP, VRRP/HSRP, TCP/UDP, LACP. Strong diagnostic skills using packet capture and other troubleshooting tools. Excellent More ❯

pilot, rollouts) Support and evolve infrastructure design, ensuring best practices are followed Collaborate with cybersecurity, network, storage, and application teams on cross-domain initiatives Implement or maintain Active Directory, DNS, DHCP, Group Policy, DFSR, WDS, etc. Automate deployment, configuration, and infrastructure provisioning (Infrastructure as Code) Work with virtualisation (VMware/vSphere, etc.) Configure/manage SAN/storage, Fibre Channel … either current or active within the last 12 months (non-negotiable) Strong track record with Windows?11 deployment (imaging, upgrade, Autopilot, Intune, SCCM, etc.) Solid experience with Active Directory, DNS, DHCP, Group Policy Experience in a 3rd line/senior infrastructure role Familiarity with both BAU support and project-based change Virtualisation experience (VMware, vSphere) Working knowledge of SAN/ More ❯