151 to 175 of 240 Network Security Jobs in the UK excluding London

stakeholder leadership and production operations experience. Area of Responsibility Define AWS reference architectures, technical standards, design patterns and implementation blueprints aligned to enterprise and security requirements. Design AWS landing zones, account structures, identity boundaries, network segmentation and governance controls using AWS Organizations and Control Tower where appropriate. Architect … CloudTrail. Lead technical decision-making for migration, transformation and modernisation initiatives while balancing governance with delivery agility. Apply AWS Well-Architected principles to improve security, reliability, performance efficiency, cost optimisation, operational excellence and sustainability. Partner with security, DevOps, application, operations and business teams to ensure practical, robust ...

Network Engineer SC Cleared We are looking for an experienced SC Cleared Network Engineer to join a busy infrastructure and network operations team, supporting critical customer environments. This is a hands-on role requiring a strong background in enterprise networking, wireless technologies, network security, and data centre infrastructure. The successful candidate will be responsible for the installation, maintenance, troubleshooting, and optimisation of complex network environments while travelling to supported sites to resolve incidents and deliver infrastructure upgrades. Key Responsibilities Configure, support and troubleshoot Cisco enterprise networking environments. Deploy and maintain Cisco Wireless ...

infrastructure platforms supporting defence and aerospace operations. You will architect complex IT environments, define technology strategies, lead infrastructure modernisation programmes, and ensure alignment with security, compliance and operational requirements. This role requires exceptional technical depth combined with strategic thinking and programme leadership capabilities. Key Responsibilities Infrastructure Architecture & Strategy Design … define enterprise infrastructure architectures spanning compute, storage, networking and virtualisation platforms Develop cloud strategy and hybrid infrastructure roadmaps aligned with MOD requirements and defence security standards Establish infrastructure design patterns, standards and best practices across the organisation Lead capacity planning, scalability assessments and infrastructure optimisation initiatives Evaluate emerging technologies ...

Security Infrastructure Engineer Start: ASAP Duration: 6-9 months Location: once or twice per week in Surrey Rate: up to £670/day inside IR35 We are seeking a Security Infrastructure Engineer to support the design, configuration, and maintenance of security solutions within a Defence-focused environment. … someone who can work across cloud and on-premises infrastructure, including compute, networking, storage, virtual machines, and containers. You will support the deployment of security tools, assess existing environments, and help improve overall security maturity. Key responsibilities Support the design, configuration, and deployment of security tools. Specify ...

critical systems, and leading IT projects from initial planning through to successful implementation and handover. This role requires strong troubleshooting skills across desktop, server, network, cloud, and security technologies, alongside in-depth knowledge of firewalls and network security. You will play a key role in delivering infrastructure … estate. Key Responsibilities: Provide 2nd and 3rd Line technical support for users across multiple sites. Investigate, troubleshoot, and resolve complex hardware, software, server, network, and infrastructure issues. Act as the primary technical escalation point for the Service Desk team. Administer and support Microsoft 365 services, Azure AD/Entra ...

Basildon (3-5 days per week onsite) Duration: 6 month contract Rate: £73.40ph LTD (Outside IR35) Role details: We are looking for an experienced Network Engineer to support our defence client on a contract basis. This is not a traditional enterprise networking role. We're particularly interested in candidates … systems integration, integration & test, trials, or mission-critical environments. Key Skills Required: Recent Time Sensitive Networking (TSN) experience DDS (Data Distribution Service) VLAN Configuration Network Architecture & Deployment Systems Integration/Integration & Test environments Real-time, deterministic or safety-critical networking Key Responsibilities not limited to: Develop and maintain network ...

Robert Walters is working in partnership with a large-scale international retail business. They operate across a platform combining a strong physical network with leading edge digital capabilities to deliver high-value products. Due to continued UK growth, they are keen to appoint an experienced Infrastructure Network Engineer … Milton Keynes offices, paying a salary range of £40,000 to £60,000 plus cash car allowance. As an experienced Infrastructure Network Engineer, you will be responsible for the design, support, maintenance and troubleshooting of the group's core infrastructure. There will be a strong focus on networking technologies ...

Network Engineer Aberdeen, Hybrid We're proud to be working alongside a leading international oil and gas company in their search for a talented Network Engineer to join their Aberdeen-based IT team. If you're the sort of engineer who wants real influence over how a network … just a ticket queue, this one's worth a look. The role puts you at the heart of the company's network infrastructure, with the added breadth of supporting the server estate as a secondary System Administrator when the need arises. What is in it for you: Salary ...

looking after around 350 users. The company turnover is over 100 Million for 2026. You'll take ownership of Windows Server and Network Infrastructure while working across a genuinely varied portfolio of projects including Hypervisor Refreshes and Network upgrades to Cyber Security accreditation and ERP support. This … card project: Rolling out a new physical access control system Endpoint management: Company-wide rollout of ManageEngine Endpoint Central across circa 350 users Manufacturing network reconfiguration: Migrating the production plant network away from Windows Server 2016, with a full network security upgrade to Server 2025 Cyber ...

resetting passwords and escalating tickets. It's a broad infrastructure position inside a large enterprise environment, giving you exposure to networking, servers, virtualisation, security, projects, and the opportunity to build skills across a modern technology estate. IT Network Support Chichester (5 days onsite) The opportunity You'll join … people responsible for running it. Reporting to the Head of IT, you'll play a key role in maintaining and improving the organisation's network and server infrastructure. The role combines day to day operational support with project work, giving you the chance to work across a wide range ...

environments. The Role You'll be the technical backbone of field operations-deploying, maintaining, and optimising IT infrastructure across sites nationwide. Working closely with network engineers, contractors, and local teams, you'll ensure equipment is installed correctly, systems stay stable, and users receive high-quality support. Key Responsibilities Deploy … install, and maintain IT and network infrastructure across multiple locations, including switches, firewalls, servers, structured cabling and workstation environments. Rack, cable, configure and troubleshoot network and endpoint hardware, ensuring secure, reliable, and high-performing services. Support firewall implementations, switch deployments, network connectivity and workstation rollouts in collaboration ...

+ £600 to £650 per day - Inside IR35 + DV Cleared role Location: Hybrid/Corsham/MOD Sites (UK and Overseas as Required) Security Clearance: Active DV Clearance Required We are seeking an experienced WAN Architect to provide technical leadership, architecture assurance and design governance across a complex … will assure WAN designs and supplier deliverables, support service transition and new service introduction, manage technology lifecycle and obsolescence, and contribute to future network transformation initiatives. Key Responsibilities Provide WAN architecture expertise and technical assurance across enterprise network services. Review and assure HLDs, LLDs, RFCs, impact assessments, security ...

Clearance: Active SC Role Description: SIEM Deployment & Management - Set up, configure, and maintain SIEM tools like ArcSight, Splunk, or QRadar. Threat Detection & Analysis - Monitor security logs, detect anomalies, and investigate potential threats. Incident Response - Work with security teams to analyze and mitigate security incidents. Custom Rule Creation … Develop and fine-tune detection rules and alerts to identify malicious activities. Security Reporting - Generate reports on security events, trends, and system performance. Collaboration - Work with IT and security teams to improve overall cybersecurity posture. Required Skills & Qualifications Technical Expertise - Strong knowledge of SIEM platforms, network ...

+ Very Competitive package A well known client of ours with a growing international presence is looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep its stores, distribution centres and operational sites running around the clock. This is a rare hybrid … enterprise IT security and Operational Technology - you'll sit at the point where corporate infrastructure meets the industrial systems that the business physically depends on. It's a senior, hands-on engineering position with real influence: you'll set technical direction, raise engineering standards and build out the organisation ...

Network Engineer (Cisco ISE & Wireless) Contract | Hybrid | Defence Sector Our client, a leading UK defence technology organisation, is seeking an experienced Network Engineer to support the design, implementation and optimisation of secure enterprise network infrastructure. This is a hands-on engineering role focused on Cisco Identity Services … Engine (ISE) , Cisco Catalyst 9800 Wireless LAN Controllers , secure network access and enterprise wireless technologies. You'll work on critical infrastructure projects, helping to modernise and secure highly available network environments. Key Responsibilities Deploy and optimise Cisco ISE and Catalyst 9800 wireless solutions. Lead wireless infrastructure upgrades ...

qualifications: Bachelor's degree in Computer Science, Engineering, a related technical field, or equivalent practical experience 5 years of experience with data center or network infrastructure planning, evaluation and negotiations including new region launches. Experience evaluating technical cloud infrastructure requirements (e.g., power density, thermal/cooling specifications, fiber network connectivity, or latency) to recommend data center or network footprint solutions. Experience driving cross-functional programs and influencing C-level executives and stakeholders across global organizations. Preferred qualifications: Experience leading data center expansion or network infrastructure planning in a hyperscale cloud environment. Experience leading technical site evaluation ...

Senior Security Engineer - IT & OT (39810) London or Nuneaton | Full-time | Hybrid We offer hybrid working, with an expectation that you'll attend one of our Holland & Barrett offices in London or Nuneaton (or another designated location) on an ad hoc basis, as required for business needs. Back your … operational environments running securely. Working at the intersection of enterprise IT and Operational Technology (OT), you'll lead the design and delivery of security solutions that safeguard business-critical systems while enabling innovation. This is an opportunity to shape our IT and OT security capability, influence technical direction ...

Senior Systems Engineer (Network Technologies Specialist) Location: Ringwood, Hampshire Salary: £45,000 - £55,000 Hours: 37.5 hours per week The Role We are looking for an experienced Senior Systems Engineer (Network Technologies Specialist) with a keen interest in designing and delivering high-quality network solutions. You will … firewalls, and routing solutions. Strong knowledge of enterprise networking technologies, including switching, routing, firewalling, and wireless infrastructure. In-depth experience working with enterprise-grade network hardware. Solid understanding of network protocols and services, including TCP/IP, DNS, DHCP, BGP, OSPF, EIGRP, and MPLS. Experience with cloud networking ...

Management Center (SMC). Experience with other SaaS based Secure Gateway vendor e.g. Zscaler, Netskope etc Ability to build, test and deploy proxy-based security solutions Good understanding of network infrastructure, network security concepts and application layer protocols (http/https) and vulnerability mitigation Good understanding … automation of a Proxy environment and understanding and comfortable working on shell/python scripts and Ansible playbooks. Expertise of networking fundamentals including Network topology, VLANs, Routing, Switching, Global/Local Load Balancing and Firewalls. Flexible to work off hours and weekends in 24x7 on-call rotation. Preferred Qualifications ...

Network & Systems Engineer Watford | £52,000 | Permanent | Onsite Experis are working with a client based in Watford who are looking to recruit an experienced Network & Systems Engineer into their established IT team. This is a broad, hands-on infrastructure role covering both networking and Microsoft technologies, with … will support a business-critical infrastructure environment and work across a mixture of on-premise and cloud technologies. Key responsibilities Support and maintain Cisco network infrastructure Provide 3rd line support across server and network environments Support Windows Server and Active Directory technologies Support Azure and Microsoft 365 environments ...

+ Very Competitive package A well known client of ours with a growing international presence is looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep its stores, distribution centres and operational sites running around the clock. This is a rare hybrid … enterprise IT security and Operational Technology - you'll sit at the point where corporate infrastructure meets the industrial systems that the business physically depends on. It's a senior, hands-on engineering position with real influence: you'll set technical direction, raise engineering standards and build out the organisation ...

critical infrastructure services that underpin business operations. This role offers the opportunity to work across complex server, virtualisation and platform technologies, driving operational excellence, security, automation and continuous improvement. The successful candidate will play a key role in maintaining the reliability, performance and security of production infrastructure whilst … virtualised infrastructure environments. Coordinate and deliver regular operating system and application patching activities. Identify, assess and remediate infrastructure and application vulnerabilities in line with security requirements. Drive automation initiatives to improve efficiency, consistency and service reliability. Support infrastructure lifecycle management, including upgrades, refreshes and decommissioning activities. Monitor system performance ...

critical infrastructure services that underpin business operations. This role offers the opportunity to work across complex server, virtualisation and platform technologies, driving operational excellence, security, automation and continuous improvement. The successful candidate will play a key role in maintaining the reliability, performance and security of production infrastructure whilst … virtualised infrastructure environments. Coordinate and deliver regular operating system and application patching activities. Identify, assess and remediate infrastructure and application vulnerabilities in line with security requirements. Drive automation initiatives to improve efficiency, consistency and service reliability. Support infrastructure lifecycle management, including upgrades, refreshes and decommissioning activities. Monitor system performance ...

AdvertDo you have a mixture of Infrastructure and Cyber Security skills? Would you like to join a large (45,000 and counting) growing global organisation? If so we could have the job for you...Role - IT Infrastructure Engineer - Cyber aka : IT Security Engineer, Infrastructure Engineer, Network Security … where you'll help design, maintain, and secure a mix of on-premise and Azure environments. You'll work across servers, networks, storage, and security tools, contributing to infrastructure projects as well as cyber initiatives such as vulnerability management, incident response, and enhancing security controls. You'll also ...

Line Network Engineer (24/7 Shift) Solihull, West Midlands £30,000 - 32,000 + 20% Shift Allowance (£38,400 OTE) Permanent | 4 on/4 off Shift Pattern 12-hour shifts (7am-7pm & 7pm-7am) We're seeking a talented 2nd Line Network Engineer to join … troubleshooting complex connectivity issues, restoring services quickly, and ensuring customers receive exceptional support around the clock. What You'll Be Doing Taking ownership of network-related incidents through to resolution. Providing technical support via phone, monitoring platforms, and ticketing systems. Troubleshooting routing, switching, firewall, wireless, and connectivity issues. Accessing ...