276 to 300 of 309 DNS Jobs in London

remediation, eDiscovery, and retention policy configuration. Additionally, you'll be responsible for SSL certificates and the wider VPN estate, applying a strong understanding of DNS, DHCP, and name resolution to configure SSL VPN profiles and maintain a robust security posture. Key skills Strong understanding of cyber security principles, identity … Microsoft 365 Defender and Sentinel to monitor, investigate, and respond to security threats and incidents. Strong knowledge of Active Directory management, including Group Policy, DNS, DHCP, domains, trusts, replication, and certificate services. Familiar with Microsoft Intune and endpoint management including device security and compliance policies. Knowledge of VPN technologies ...

access, compute and storage issues; assist with patching, upgrades and incident resolution. Help implement Azure networking features such as VNets/subnets, routing, DNS, Private Endpoints, NSGs, firewalls and connectivity to on-premises (VPN/ExpressRoute). Contribute to Azure IaaS and PaaS engineering: VMs, storage, Key Vault, monitoring … documentation and runbooks, and communicate progress and risks to the team and client stakeholders. What you’ll bring Foundational understanding of infrastructure concepts (networking, DNS, routing, load balancing, certificates, OS fundamentals) and how these apply in Azure. Hands‐on experience (commercial, internship, apprenticeship or personal projects) with Azure services across ...

operations across on‐prem, AVS, and Azure‐native environments Cloud Networking & Connectivity Configure and manage: VNets, NSGs, UDRs VPN Gateway, ExpressRoute Private Endpoints and DNS Troubleshoot hybrid connectivity and latency issues Support secure network design and segmentation Identity, Access & Security Support Microsoft Entra ID (Azure AD) configurations and integrations Implement … design, pipelines, governance Deep knowledge of core Azure services (compute, storage, networking, identity) Hands‐on experience with: Azure Kubernetes Service (AKS) Azure networking (VNet, DNS, Private Endpoints, ExpressRoute/VPN) Microsoft Entra ID/RBAC Experience supporting BAU operations, incident management, and troubleshooting Strong scripting skills (PowerShell, Bash, or Python ...

one. We use GitLab, but the thinking matters more than the tool. Enough networking to debug a real problem: the domain name system (DNS), transport layer security (TLS), HTTP, virtual private clouds, subnets, security groups, load balancers and content delivery networks. Desirable: able to write code, not only configuration – Python ...

Experience with containers, Docker and Kubernetes. Advanced experience with Bash and Python Good understanding of common services, applications and protocols, for example HTTPS, SSH, DNS, NTP and SSL.Good understanding of common services, applications and protocols, for example HTTPS, SSH, DNS, NTP and SSL. Experience with open-source Ansible automation tooling. ...

multiple regions and technologies. You'll be; Configuring, maintaining and supporting the Azure estate, including Microsoft Azure cloud services, servers and storage, cloud networking, DNS and email security systems. Administering Entra ID, including Conditional Access, Privileged Identity Management and hybrid identity components. Designing, deploying and managing cloud‐based infrastructure … security technologies, including the Defender suite, Purview, PIM, Sentinel and Intune. Experience administering Windows Server environments within cloud‐hosted virtual infrastructures, including Active Directory, DNS and Group Policy. Strong hands‐on experience with Microsoft Azure IaaS and PaaS services, including networking, identity and access management, backup and monitoring. Strong troubleshooting ...

part of a team shaping the future of trading. Key Responsibilities Manage and maintain Windows Server environments, including Active Directory, Group Policy, DNS, DHCP, and related services Support virtualization platforms such as VMware ESXi, vCenter, Hyper‐V, and Citrix Perform day‐to‐day administration of physical servers and configuration management … field 3+ years experience designing & supporting Windows-based and mixed OS infrastructures Strong knowledge of Windows Server (2016/2019/2022), Active Directory, DNS, DHCP Python Scripting Familiarity with virtualization platforms (VMware, Hyper‐V, Citrix) Experience with coding version control systems (Git) Salary 120,000-160,000 GBP #J ...

technical sales or equivalent years of experience in engineering or operations networking Over 3 years of experience in networking technologies, including TCP/IP, DNS, DHCP, LAN/WAN, Routing, Switching, Firewalls, IPv4/v6, UNIX Admin, and experience with switches, routers, and firewalls in Intranet/Internet/Extranet … work in the field frequently; travel is required Conscientious attitude and dependability, self-starter, ability to work independently while appreciating teamwork and communication DDI -- DNS/DHCP/IPAM experience CCSP, CISSP, CEH, or other technical certifications a plus Bachelor's Degree Be Successful — Your Path First 90 Days: Immerse ...

Bromcom Computers Plc is the UK's fastest-growing cloud-native school Management Information System (MIS) provider, serving thousands of schools across three UK countries. The DevOps Team Manager leads a team of 3-4 ...

with protocols such as BGP, VxLAN, and vPCs, with a proven history of managing mission-critical production network infrastructure. Strong working knowledge of enterprise DNS platforms (e.g. Infoblox), including DNS architecture, DHCP/IPAM integration, and DNS security (RPZ/DFP). Proven hands-on experience with Arista Campus ...

significant part of the role will involve designing how messaging services operate during the transition period. This will include mail routing, accepted domains, DNS, Autodiscover, recipient management, calendars, free/busy, shared and resource mailboxes and application-relay dependencies. You will also define the migration patterns and sequencing required … modernisation. Design secure and resilient mail-routing architectures across existing and target environments. Define accepted-domain strategies and address dependencies associated with domain ownership, DNS and mail routing. Design DNS, MX, Autodiscover and service-discovery arrangements required to support coexistence and migration. Define address-list, Global Address List and recipient ...

security of critical enterprise systems. Required Skills & Experience Proven experience as a Network Security Architect within large-scale enterprise environments. Strong expertise in: DNS architecture and security Next-generation firewalls (Palo Alto, Check Point, Fortinet, Cisco Firepower or similar) Network segmentation and micro-segmentation Secure remote access and VPN technologies … CCIE Security Palo Alto PCNSE Azure Security Engineer Associate AWS Security Specialty If you are an experienced Network Security Architect with strong expertise across DNS, firewall technologies, cloud security, and enterprise network architecture, we'd love to hear from you. ...

Services environment. This is an operations-focused role, acting as the technical subject matter expert for network incidents affecting load balancing and DDI (DNS, DHCP, IPAM) infrastructure. You'll manage day-to-day operational support across F5, VMware Avi, and BlueCat platforms, including incident triage, proactive network reviews and disaster … senior engineers, architecture and business stakeholders. Contribute to Operations projects and infrastructure improvement initiatives. Key skills: 7+ years' experience in network protocols and technologies (DNS, DHCP, SSL/TLS, HTTP/S, SNMP, TCP/IP). Strong knowledge of F5 (LTM/GTM/APM), BlueCat DNS/DHCP ...

Delivering training sessions remotely and onsite, tailored to user needs and varying technical ability Performing basic network-related checks and diagnostics (TCP/IP, DNS, VPNs) to identify common connectivity issues Key skills Proficiency with Zendesk or similar ticketing systems Basic understanding of networking concepts, including TCP/IP, DNS ...

security and user experiencethroughout the transformation. You will help prepare migration waves, assess technical readiness, execute mailbox migrations and troubleshoot issues across messaging, identity, DNS, applications and end-user clients. You will work closely with identity, EUC, network, security, applications, service transition and programme teams to ensure that messaging changes … after migration. Test and supportmobile access and Outlook/client behaviour, ensuring users retain appropriate access throughout the transition. Implement and validate required DNS changes, including records and dependencies supporting messaging services. Configure and troubleshootAutodiscover, SMTP relay and application mail-flow requirements. Implement appropriate email-security and compliance configurations ...

sources such as OSINT, dark web sources, ISACs, Recorded Future, Mandiant, Flashpoint, Anomali, ThreatConnect, or VirusTotal. Hands‐on experience investigating adversary infrastructure using passive DNS, WHOIS, TLS certificate, and internet‐scan data sources such as VirusTotal, DomainTools, Shodan, Censys, or urlscan.io. Experience triaging malware, phishing kits, or attacker tooling using … detection opportunities. Ability to identify anomalies and trends across vast, unstructured datasets. Be curious. Technical Research & Tradecraft Ability to investigate adversary infrastructure using passive DNS, WHOIS, TLS certificate, and internet‐scan data, pivoting from a single indicator to broader campaign infrastructure. Comfortable performing initial triage of malware samples, phishing kits ...

Senior Network Security Specialist**Shift Pattern:**Standard 40 Hour Week (United Kingdom)**Scheduled Weekly Hours:**40**Corporate Grade:**D - Assistant Vice President**Reporting Line:**(UK Division) Information Technology**Location:**UK-London**Worker Type:**Permanent**About ...

risk-managed roadmap towards future Active Directory consolidation , ensuring consolidation only occurs when the necessary prerequisites and target services are in place. Own the DNS and namespace architecture , including name resolution, DNS forwarding, service discovery, namespace integration and dependencies between existing and target environments. Ensure DNS and directory designs support … Cloud Sync, authentication methods, federation, MFA and Conditional Access. Experience of multi-tenant coexistence, tenant/domain migrations and Active Directory consolidation. Strong DNS, namespace, trusts, GPO, privileged-access and directory-security knowledge. Understanding of SAML, OpenID Connect, OAuth, SCIM and enterprise application integration. Ability to produce HLD/ ...

incident response and production support, not a project/build role. You'll be the technical SME for DDI/DNS and load balancing infrastructure, owning incidents through to resolution and keeping the environment running. BlueCat is essential - candidates without hands-on BlueCat experience will not be considered for this …/week, 40 hours, rota covering 07:00-18:00 What You'll Be Doing BAU operational support and incident triage for BlueCat DDI (DNS, DHCP, IPAM - on-prem and Cloud Resolver), F5 (LTM/GTM/APM), and VMware Advanced Load Balancer (Avi) Acting as the technical escalation point ...

Azure migration and ongoing platform hardening, in a regulated and secure environment. Key Responsibilities Complete the remaining tenant migration work, including infrastructure alignment, DNS and environment configuration. Prepare the platform for its next Azure migration phase, covering infrastructure readiness, networking, environment alignment and pipeline updates. Set up and manage … failover, static fallback pages and Front Door routing during outages. Deliver outstanding platform hardening and act on penetration testing findings. Manage IAM, deployment permissions, DNS records and user offboarding within the subscription. Produce clear infrastructure documentation in line with governance controls. Essential Experience Strong hands-on Microsoft Azure experience, including ...

optimisation and tagging/governance. Platform networking and identity: design and operate private networking across the landing zone (hub-spoke VNets, private endpoints, private DNS, ingress) and workload identity (managed identities, workload identity federation for pipelines, Entra ID RBAC). Embed with product squads from discovery onwards, shaping infrastructure design … product, not just the pipelines that deploy to it. Hands‐on Azure landing zone experience: management groups, hub‐spoke networking, private endpoints and private DNS, Azure Policy, Entra ID/RBAC. Hands‐on AWS experience sufficient to operate existing workloads and migrate workloads off it IaC expertise (Terraform strongly preferred ...

Headquarters: United Kingdom (Remote) Fastly helps people stay better connected with the things they love. Fastly’s edge cloud platform enables customers to create great digital experiences quickly, securely, and reliably by processing, serving, and ...

Infrastructure Automation: (Level: Practitioner): Design and manage infrastructure as code (IaC) using Terraform and Ansible, ensuring efficient provisioning, configuration, and management of AWS resources. DNS Management: (Level: Practitioner): Lead the management and optimization of AWS Route 53 for DNS resolution, including routing policies, health checks, and domain registration. System Scaling ...

Familiarity with network hygiene measures such as BCP38/84 anti-spoofing protection, RPKI, and other BGP routing BCPs, RIRs, and Internet Routing Registries, DNS/DNSSEC, and domain registration.* Strong grasp of network security vulnerabilities and protections like: Denial of Service attacks and mitigation, BGP Hijacking, CoPP, access-lists … Internet security arena.* Experience with Internet organizations like RIR's and domain name registries and tools like whois/RDAP, RIPE RIS, BGP and DNS monitoring. RIPE NCC certification (Database/BGP security) is a plus.* Solid understanding of network security, security monitoring, and layers of defense principles.## **SKILLS & ABILITIES ...

CCNP, CCIE in Enterprise or Security, CISSP. Or equivalent and demonstrable experience. Experience with Network Design and Deployment across LAN, WAN. Expert experience of DNS, Proxy, Firewall, Endpoint, NDR and Networking/Security concepts. Excellent communication and strategic planning skills, while being self‐motivated with a focus on execution. Preferred …/Security related discipline. CCIE in either Enterprise Networking or Security. CISSP. 10yrs experience in Cyber Security and/or Networking. Expert experience of DNS, Proxy, Firewall, Endpoint, NDR and Networking/Security concepts. Why Cisco? At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations ...