1 to 25 of 55 Network Specialist Jobs in the UK

Senior Network Specialist with Security and Cisco - City London Our Client urgently requires a Senior Network Specialist with a heavy background in Network Security on Cisco and Microsoft. The security and support of the company's network is paramount. This is predominantly a support role (BAU) with the design of scalable solutions deliverable through … from perimeter to DMZ roles. Support IPS deployment for European branches. Develop, maintain and deliver global standards to all networking devices. Remediate Penetration Test results. Ensure seamless migration of network estate to newly adopted security framework. General Skills: Experience working within mission-critical environments. Experience in operational deployments. Datacentre cabling and racking of equipment. Technical Skills you need to More ❯

Job Title: Firewall Engineer - Network Security Specialist Location: Leeds Type: Full-Time | Reports To: Network Operations Manager/Head of Managed Services Salary: £45,000 Shift Pattern: Rotating shifts or business hours (based on operational needs) About Us We are a leading cybersecurity reseller and MSP delivering end-to-end security solutions. Our expert team powers proactive … Firewall and NOC services expand, we need a skilled NOC/Firewall Engineer with hands-on expertise in Check Point, Fortinet, or Palo Alto Networks to ensure secure, seamless network connectivity. The Role You will be the frontline technical expert in our 24/7 Network Operations Center, owning the daily monitoring, configuration, troubleshooting, and incident resolution of … client Firewalls and network security infrastructure. This hands-on position demands sharp technical skills and the ability to thrive in a fast-paced, client-focused environment. What You'll Do Manage & Monitor: Operate client Firewalls, VPNs, and network devices using advanced monitoring platforms and vendor tools. Configure & Update: Implement Firewall rule changes, security policies, NAT, and routing on More ❯

hours ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. Description & Requirements The Bloomberg Network Triage team oversees and supports one of the largest private networks in the world. As part of this team, you will be responsible for the support of our Network, spanning over 100 node sites … connecting clients globally to over 1,500 exchanges, which is integral to the success of the company. You will ensure our customers have 24/7 access to the Network in order for them to run their business successfully. You will provide reactive support to customers’ networking issues as well as proactive analysis to ensure the Bloomberg network maintains its position at the forefront of network stability and reliability. Location London Business Area Engineering and CTO Ref # 10043756 Description & Requirements The Bloomberg Network Triage team oversees and supports one of the largest private networks in the world. As part of this team, you will be responsible for the support of our Network, spanning More ❯

UK businesses on the horizon. Job Description Salary: Dependent on experience Working Hours: 8:30AM - 5:30PM (37.5 hours) Location: Field Based - UK Responsibilities: Have a strong understanding of network & security technologies: such as DIA, MPLS, SASE, SD-WAN, Firewall etc. Demonstrate product and industry credibility to customers and internal teams and provide strategic guidance on the latest Services … sales experience in telecoms, IT services or managed security services. In-depth knowledge of networking technologies, connectivity solutions, and cybersecurity products. Solid technical aptitude, with an understanding of how network and security solutions integrate into various systems and environments. Relevant vendor certifications (e.g., Cisco, Fortinet). Certifications such as CompTIA Security+, Cisco CCNA, or CCNP are desirable but not More ❯

Senior Network Specialist Bradford £60,000 - £80,000 + great benefits A Senior Network Engineer is needed to join a well-established and growing ISP in West Yorkshire. In this role, you will design and implement high-performance solutions, lead on technical problem resolution whilst also support junior engineers. Due to the nature of the business, this … role will be client-facing so excellent communication and stakeholder management skills are essential. As a Senior Network Engineer, you will be working to identify and implement automation opportunities as part of the wider technical team. You will deliver the technical strategy whilst acting as the escalation point for queries within the Network Team. You will research and … technologies and solutions, providing recommendations for service improvements. This role will be joining a business with more than 20 years of success behind them, and they require a Senior Network Engineer to help continue this. This role will be on site in Bradford. Should you wish to discuss flexibility, please dont hesitate to reach out. Package: 5 hours per More ❯

Job Title: Senior Network Engineer - Arista & Automation Specialist (Low-Latency DC Focus) Location: United Kingdom (Remote, with occasional site visits if needed) Day Rate: £420 - £430 Per Day (Inside IR35) Contract Type: Long-term rolling contract Company Introduction We are seeking an experienced Senior Network Engineer with a proven background in Arista-based data centre networks and … a strong focus on network automation. The successful candidate will join a highly technical environment supporting the design, deployment, and ongoing optimisation of low-latency, high-availability infrastructure across global data centres. You'll work with a modern network stack (Arista EOS, CloudVision, Python, Nornir, Ansible) and interface closely with architecture, security, and DevOps teams to drive automation … and troubleshoot BGP, EVPN (VXLAN), and Multicast (PIM, IGMP) in complex enterprise environments. Use Arista CloudVision for orchestration, telemetry, and automated configuration management across global environments. Build and maintain network automation scripts using Python, Nornir, and Ansible, ensuring repeatability and alignment with infrastructure-as-code practices. Support large-scale hardware refreshes and migrations from Cisco to Arista, ensuring minimal More ❯

Network Specialist (Weekend Shift) Bloomberg London, United Kingdom Apply now Posted 10 days ago Permanent Competitive The Bloomberg Network Triage team oversees and supports one of the largest private networks in the world. As part of this team, you will be responsible for the support of our Network, spanning over 100 node sites and connecting clients … globally to over 1,500 exchanges, which is integral to the success of the company. You will ensure our customers have 24/7 access to the Network in order for them to run their business successfully. You will provide reactive support to customers' networking issues as well as proactive analysis to ensure the Bloomberg network maintains its … position at the forefront of network stability and reliability. In our EMEA team, you will be joining a close-knit group of engineers who are not just passionate about technology, but keen to solve complex problems from analysing packets to working on network incidents. You will partner with a hardworking, approachable team with a diverse set of backgrounds More ❯

alert: Unit: Networks Location: Assembly, Bristol, United Kingdom Salary: Competitive Salary + Great Benefits Posting Date: 18/06/25 Function: ESN Networks Location: Bristol The Emergency Services Network (ESN) is a strategic priority for BT, aiming to provide advanced mission-critical communications for Britain's Emergency Services. It will replace the Airwave network, leveraging EE's … 4G technology to serve 300,000 frontline emergency personnel. We seek a candidate capable of ensuring the Radio Access Network (RAN) capability data supports our customers. This role offers development opportunities in OSS design, coding, and network automation, contributing to the design and delivery of radio vendor OSS systems, including trace management and geolocation systems. The successful candidate … with RAN OSS design authorities to develop design and automation capabilities for RAN Element Managers and Trace Management tools supporting the ESN contract. Using coding skills and radio/network knowledge to support vendor OSS platform designs for radio and transmission technologies. Engaging with technical and non-technical stakeholders to propose solutions for predicting, planning, and visualizing RAN data. More ❯

Press Tab to Move to Skip to Content Link Select how often (in days) to receive an alert: Network Design Specialist - RAN RF Coverage Tools - ESN - PART TIME Unit: Networks Location: Snowhill, Birmingham, United Kingdom Salary: Competitive Salary + Great Benefits Posting Date: 11/06/2025 Function: ESN Networks Hours: This is a Part Time role … for 19 hours per week The Emergency Services Network (ESN) is a strategic priority for BT, providing mission-critical communications for Britain's Emergency Services. ESN will replace the Airwave network and build upon EE's 4G network, offering essential voice, data, and critical communication services to 300,000 frontline emergency service members. Providing consistent data describing … the Radio Access Network (RAN) capability is vital for our customers. You will be responsible for the delivery and strategy of this Portal and the coverage prediction tools that support it. Your role will impact coverage assurance, service availability, RAN Tools enhancements, and high-level OSS solution designs focusing on customer experience. The successful candidate will be cleared to More ❯

Job summary We are looking for a Senior Network Specialist to be a key member of the Network team within the ELFT Digital Department. The post will act as a lead within the team for network management and support as well as support junior network team members day to day. The post holder is highly … technical and provides design, support and advice to the Network Manager and the network team. The post holder is expected to become the knowledge repository or "go-to-person" for network support, maintenance, installation or configuration, and the relevant network management tools or technologies. Main duties of the job The post is a senior technical role … in a team of specialist network staff. The role incorporates customer care, vendor relationship management, operations and communications coordination and to foster a collegiate style of working within the team and with other teams within the Digital Department. They will take full ownership of network support issues from identification to resolution, capacity planning, proactive enhancements to the More ❯

from each other, completely free of barriers. We encourage you to apply if your qualifications and experience are a good fit for any of our openings. Your role: The Network Security Specialist - L2 is responsible for assisting in engineering, long term strategies, planning, integration, and deployments pertaining to the IT Network. They will work closely with all members … systems and services. Your responsibilities: Participate in the development and engineering of long term strategies for the IT Network. Utilize 'Systems Thinking' to understand interdependencies both within the IT Network and Infrastructure, and throughout Global Relay's interests. Work closely with Operations and Development teams to identify, troubleshoot, diagnose, and correct system related issues as they arise. Participate in … acquired knowledge to balance user requirements, available resources, organizational goals and objectives while striving to maintain top quality client service. About you: Minimum of 5+ years' experience in a Network Specialist capacity. Experience with complex enterprise network architecture planning, design, and implementation. Experience with troubleshooting & resolving complex technical problems, management reporting, and documentation (how-to, processes and More ❯

What You'll Be Working On: ️ Designing, implementing, and managing network security architectures to protect enterprise systems ️ Monitoring and analyzing network traffic to identify and mitigate potential threats and vulnerabilities ️ Configuring and managing firewalls, intrusion detection/prevention systems (IDS/IPS), VPNs, and other network security tools ️ Conducting regular network security assessments and penetration testing … to ensure optimal security ️ Collaborating with IT and security teams to ensure proper network access controls, policies, and encryption standards are in place What We're Looking For: ️ Proven experience as a Network Security Specialist or in a similar role within network security ️ Strong knowledge of networking protocols (e.g., TCP/IP, DNS, HTTP) and network security tools (e.g., firewalls, IDS/IPS, SIEM) ️ Experience with security frameworks such as NIST, CIS, and ISO 27001 ️ Familiarity with cloud security and hybrid network environments is a plus ️ Relevant certifications such as CCNP Security, CISSP, or CompTIA Security+ are highly desirable More ❯

Senior Network Engineer – Low latency trading £140,000-200,000 + bonus Quant Capital is urgently looking for talented Network Engineers to join a top-tier HFT in their London office. This role suits a seasoned engineer who has deep expertise particularly in Layer 1 networking. As a Network Engineer, you will play a crucial role in … building, automating, and ensuring the reliability of cutting-edge low latency infrastructure. This opportunity will allow you to work with the fastest trading network in the world, experiment with the latest technologies, and make your mark as a pioneer in the networking industry. The firm is known globally for its attitudes, technology and rigour, more importantly, you will be … of our global infrastructure, with a primary emphasis on low latency and proprietary hardware platforms. Proactively identifying opportunities for improvements in existing configurations, technologies, and procedures to enhance overall network performance. Providing hands-on operational support for our high-performance global wireless and wired networks. Leveraging both proprietary and industry-standard monitoring and analysis tools to swiftly identify, diagnose More ❯

Our telecoms client is looking for Network Design Specialists/Architects initially for 3 months with good possibility of extensions. The role is fully onsite Mon-Fi 8-5pm, some out of hours 24 hours working may be required. Candidates need to be eligible for SC clearance. This role is outside IR35. Key Skills: - Proficiency in Fortinet SDWAN More ❯

Our telecoms client is looking for Network Design Specialists/Architects initially for 3 months with good possibility of extensions. The role is fully onsite Mon-Fi 8-5pm, some out of hours 24 hours working may be required. Candidates need to be eligible for SC clearance. This role is outside IR35. Key Skills: - Proficiency in Fortinet SDWAN More ❯

Social network you want to login/join with: Delivery Team Security Lead, £65,000 – £90,000, Remote (Some travel expected, Domestic and International) I am partnered with a specialist cyber security consultancy, delivering high-assurance solutions to government, defence, and critical national infrastructure sectors. They provide expert services across security assurance, secure systems delivery, and technical consultancy. … and Openfire XMPP services (highly desirable). Manage and configure Azure virtual machines and virtual environments as required. Possess sound experience in computer networks, including DNS, domains, PKI certificates, network design, and secure architecture. Support and maintain internal company IT systems as part of the Technical and ICT Admin Team. Provide day-to-day technical advice and support to More ❯

Delivery Team Security Lead, £65,000 – £90,000, Remote (Some travel expected, Domestic and International) I am partnered with a specialist cyber security consultancy, delivering high-assurance solutions to government, defence, and critical national infrastructure sectors. They provide expert services across security assurance, secure systems delivery, and technical consultancy. With a strong focus on secure communications and mission-critical … and Openfire XMPP services (highly desirable). Manage and configure Azure virtual machines and virtual environments as required. Possess sound experience in computer networks, including DNS, domains, PKI certificates, network design, and secure architecture. Support and maintain internal company IT systems as part of the Technical and ICT Admin Team. Provide day-to-day technical advice and support to More ❯

Social network you want to login/join with: We are looking for an Expert DC & Security Engineer with deep expertise in low-latency networking, multicast technologies, and secure data centre infrastructure. This is a hands-on, high-impact engineering role where you’ll be responsible for the full lifecycle of network systems—from design and deployment to … performance monitoring and continuous improvement. Key Responsibilities Design, build, and maintain complex network systems and applications to meet evolving business and technical demands. Translate business requirements and performance data into robust technical solutions that align with capacity and infrastructure strategies. Develop real-time dashboards and monitoring systems to visualise network health and performance. Provide expert support for multicast … and WAN implementations, acting as the primary escalation point for complex issues. Lead network upgrades and migrations, coordinating with internal teams and third-party providers. Manage enterprise firewall environments and contribute to secure network architecture reviews. Maintain thorough documentation and conduct detailed system performance reviews to drive continuous improvement. Contribute to engineering patterns, enabling the automation, testing, and More ❯

Network Security Specialist Posting Date: 1 May 2025 Function: Service Unit: Business Location: Hatfield Business Park, Hatfield, United Kingdom; Belfast; Sheffield Salary: Competitive + Benefits Responsibilities include: Providing leadership on Agile/ITIL processes and decision-making within the security team; advising colleagues on best practices and supporting from a 3rd Line perspective. Developing peers and colleagues through … collaboratively as a motivated team player to build features impacting customers. Owning production platforms and products from inception to continuous improvement. Preferred CV qualifications: FCSS/CCNP or Fortinet Network Security Certification Nutanix Certified Associate (NCA) Experience with WAF/Load balancer, Dynamic Routing Protocols Knowledge of prototyping, testing solutions, and iterative development. Experience designing user journeys, service maps More ❯

Our telecoms client is looking for Network Design Specialists/Architects initially for 3 months with good possibility of extensions. The role is fully onsite Mon-Fi 8-5pm, some out of hours 24 hours working may be required. Candidates need to be eligible for SC clearance. The rate is £425-£450 per day outside IR35. Mandatory Skills More ❯

our teams should reflect the diverse experiences and backgrounds of the communities we support. #LI-Onsite #TJ-ONSITE About Us About Telent Telent is a leading technology company and specialist in the design, build, support and maintenance, drawing on decades of experience in mission critical communications and technology. of the UK’s critical digital infrastructure. The work we do More ❯

Senior Infrastructure Specialist - Network Security & Assurance page is loaded Senior Infrastructure Specialist - Network Security & Assurance Apply locations Leeds Wellington Place Manchester Westminster House time type Full time posted on Posted Yesterday time left to apply End Date: July 3, 2025 (13 days left to apply) job requisition id 134075 End Date Wednesday 02 July 2025 Salary … support flexible working - click here for more information on flexible working options Flexible Working Options Hybrid Working, Job Share Job Description Summary . Job Description JOB TITLE: Senior Infrastructure Specialist - Network Security & Assurance SALARY: £70,929 - £78,810 LOCATION(S): Manchester or Leeds WORKING PATTERN: Our work style is hybrid, which involves spending at least two days per … week, or 40% of our time, at our locations noted above. About this Opportunity Join us at Lloyds Banking Group as a Network Security Senior Infrastructure Specialist and play a pivotal role in protecting the UK's largest digital bank. This opportunity sits within our Network Security Prevention, Detection, Compliance and Assurance team - part of the wider More ❯

We are very excited to be building a small and efficient TechOps team at Octopus. We are looking for an ambitious, knowledgeable and experienced Network Specialist to join our team, to grow with the rest of the company, and ensure we are doing so in a secure and safe way. As our Network Specialist, you’ll … be responsible for maintaining and optimising our Meraki networking infrastructure. Your role will involve ensuring the smooth and secure operation of our network systems. We have lots of offices around the world that are in need of some focus and attention to improve the employee experience in them. We also have many new offices that are on the horizon … offices as part of their fit-out projects, including firewalls, switching and WiFi. Collaborate with office management, office fit-out project teams and the wider TechOps team to understand network system designs and requirements. Travel around the country, and even Europe, to conduct on-site testing and commissioning of networks, ensuring all components function as intended. Manage and monitor More ❯

We are very excited to be building a small and efficient TechOps team at Octopus. We are looking for an ambitious, knowledgeable and experienced Network Specialist to join our team, to grow with the rest of the company, and ensure we are doing so in a secure and safe way. As our Network Specialist, you’ll … be responsible for maintaining and optimising our Meraki networking infrastructure. Your role will involve ensuring the smooth and secure operation of our network systems. We have lots of offices around the world that are in need of some focus and attention to improve the employee experience in them. We also have many new offices that are on the horizon … offices as part of their fit-out projects, including firewalls, switching and WiFi. Collaborate with office management, office fit-out project teams and the wider TechOps team to understand network system designs and requirements. Travel around the country, and even Europe, to conduct on-site testing and commissioning of networks, ensuring all components function as intended. Manage and monitor More ❯

We are very excited to be building a small and efficient TechOps team at Octopus. We are looking for an ambitious, knowledgeable and experienced Network Specialist to join our team, to grow with the rest of the company, and ensure we are doing so in a secure and safe way. As our Network Specialist, you’ll … be responsible for maintaining and optimising our Meraki networking infrastructure. Your role will involve ensuring the smooth and secure operation of our network systems. We have lots of offices around the world that are in need of some focus and attention to improve the employee experience in them. We also have many new offices that are on the horizon … offices as part of their fit-out projects, including firewalls, switching and WiFi. Collaborate with office management, office fit-out project teams and the wider TechOps team to understand network system designs and requirements. Travel around the country, and even Europe, to conduct on-site testing and commissioning of networks, ensuring all components function as intended. Manage and monitor More ❯