26 to 50 of 56 Senior Network Engineer Jobs in the UK

I'm currently seeking a hands-on Senior Network Engineer on a contract basis for my client to deliver critical network transformation projects across our hybrid (on-premises and cloud) environments. This role requires deep technical expertise in network architecture, operations, and cybersecurity best practices, with a strong focus on execution and delivery. Engagement Scope … Deliver a network refresh (firewall, switches, and routers) across both office and Birmingham data centre. Assist the DevOps team in establishing connectivity to a major critical infrastructure services provider via a dedicated MPLS circuit. Lead the design and implementation of a network segmentation project in AWS, separating production and non-production environments. Key Responsibilities: Design, implement, and support … enterprise network infrastructure across Cisco and Palo Alto on-premises environments, and Azure/AWS cloud platforms. Lead deployment and optimisation of SD-WAN and SASE/SSE technologies (e.g., Netskope, Zscaler, Cisco Umbrella). Manage and maintain secure network architectures including firewalls, VPNs, switching, routing, and load balancing (HAProxy). Monitor, analyse, and optimise network performance More ❯

Senior Network Infrastructure Engineer ABOUT THE ROLE This is your chance to join a truly iconic Midlands retail group. Due to ongoing company expansion, we now have an opportunity for a Senior Network Infrastructure Engineer to join my clients team. We are looking for a motivated and ambitious individual who is able to prioritise More ❯

Networking Engineers required for 12 month ongoing contracts within Aberdeen area. Roles will be responsible for implementing, and maintaining a large organization's network infrastructure, ensuring optimal performance and security. Key Responsibilities Create and implement network architectures that meet business needs, including local area networks (LANs), wide area networks (WANs), and cloud-based systems. Monitor network performance … troubleshoot issues, and ensure maximum uptime and reliability of network services. Implement and manage security measures to protect the network from unauthorized access and cyber threats, including firewalls and VPNs. Work closely with IT teams across several sites, including system administrators and network technicians, to optimize network performance and resolve issues. Maintain accurate documentation of network configurations, processes, and changes to ensure compliance and facilitate troubleshooting. Required Skills and Qualifications Technical Knowledge : Strong understanding of network protocols, hardware (routers, switches, firewalls), and software applications related to networking. Problem-Solving Skills : Ability to quickly identify and resolve network issues, ensuring minimal disruption to services. Communication Skills : Excellent verbal and written communication skills to explain More ❯

to redefine connectivity and transform how people share stories and experiences. At AT&T, you won’t just imagine the future—you’ll build it. As an experienced, proactive Senior Network Design & Capacity Planning Engineer you will perform capacity planning for our world-class global backbone and edge devices, ensuring all resources meet current and future customer … needs in alignment with engineering guidelines. In this role you will generate detailed reports and collaborate with cross-functional teams to define and implement actions for maintaining optimal network capacity. Additionally, you will identify opportunities to automate repetitive tasks, driving process simplification and operational efficiency. You will work closely with both internal and external partners, contributing to problem-solving … of an international team operating across multiple time zones. Attention to detail, analytical thinking, and adaptability are key to thriving in this dynamic environment. If you are passionate about network optimization and innovation, we encourage you to apply. What you’ll do: Plan and capacity manage the AT&T Global Core Network to ensure optimal performance and scalability More ❯

L3 Network Support Specialist (DV CLEARED) Rate: £500 per day inside IR35 Location: Central London Job Type: Contractor Mandatory: Must hold active DV Clearance We are seeking a Senior Cisco Network Engineer/Subject Matter Expert to join our team in London. This role is crucial for supporting customer deployable classified systems and contributing to our … mission of making the world more sustainable through innovation. As a Network Support Engineer, you will play a key role in incident management and resolution on secure classified systems. Day-to-day of the role: Provide Level 3 network engineering support for the LAN and WAN across all security domains. Primarily handle incident management on our clients … live systems, focusing on incidents escalated from 1st and 2nd line resources. Install, configure, deploy, maintain, and diagnose all CISCO Network Devices and supporting cabling and infrastructure. Offer network support, advice, and recommendations for design changes. Liaise and work collaboratively with other third parties, resolver groups, and specified authorities to implement service and technical changes. Update design documentation More ❯

Senior Network Software Engineer C Linux - Remote or Hybrid Edinburgh Stuck ? Frustrated ? Know youre better than this ? Career goals not being met ? As a Senior Software Engineer in this Networking Technology company youll have the opportunity to work on innovative, challenging projects where youll learn something new in emerging Network technologies click apply for More ❯

Venn Group are working with a University to hire an Senior Network Engineer on a contract basis, to provide expert-level technical support, resolve complex issues, and to assist with their Network re-architecture. This role is crucial to ensuring seamless network infrastructure across the University. Employment type: Contract Location: Central London Onsite requirement … and support of core data networking and wireless infrastructure , ensuring systems meet user needs and align with the University’s IT strategy. Drive capacity planning and technical development for network services, improving processes, tools, and documentation to enhance support and service delivery. Develop and test network solutions , focusing on data, voice, and wireless technologies; contribute to strategic planning … and service improvements based on feedback and research. Coordinate with external vendors to ensure effective delivery and support of third-party network and telecom services. Lead project work using the Information Services framework , managing your own tasks and supporting the team to meet deliverables and customer expectations. Provide training and documentation for Information Services staff, ensuring high service standards More ❯

Venn Group are working with a University to hire an Senior Network Engineer on a contract basis, to provide expert-level technical support, resolve complex issues, and to assist with their Network re-architecture. This role is crucial to ensuring seamless network infrastructure across the University. Employment type: Contract Location: Central London Onsite requirement … and support of core data networking and wireless infrastructure , ensuring systems meet user needs and align with the University’s IT strategy. Drive capacity planning and technical development for network services, improving processes, tools, and documentation to enhance support and service delivery. Develop and test network solutions , focusing on data, voice, and wireless technologies; contribute to strategic planning … and service improvements based on feedback and research. Coordinate with external vendors to ensure effective delivery and support of third-party network and telecom services. Lead project work using the Information Services framework , managing your own tasks and supporting the team to meet deliverables and customer expectations. Provide training and documentation for Information Services staff, ensuring high service standards More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture supporting … trading environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that … support both trading operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity More ❯

design, build, and operate systems that directly enable trading and investment decision-making. With trading volumes, data analytics, and cloud integration scaling rapidly, the firm is expanding its core network engineering function to ensure its systems remain ultra-low latency, secure, and globally consistent. This is a key hire in building the next generation of network architecture supporting … trading environment and global technology platform Opportunities for professional development and advanced certifications A collaborative, high-trust culture that values expertise and innovation What You’ll Do As a Senior Network Engineer, you’ll play a central role in maintaining and evolving the firm’s global data and voice network. You’ll design and deliver projects that … support both trading operations and broader business initiatives across data centres, offices, and cloud environments. Key responsibilities include: Owning and supporting the global network and voice infrastructure Designing, implementing, and optimising secure, scalable network solutions Partnering with internal teams and external vendors to resolve complex network issues Leading infrastructure projects involving data centres, telephony, and cloud connectivity More ❯

five established datacentre locations globally, and several contracts in the pipeline, Hosted Services is expected to continue to grow. To support this growth, we are now looking for a Network Engineer to work within our Hosting Services team to oversee the ongoing delivery, administration and security compliance of the network infrastructure underpinning our hosted services internationally. Responsibilities … Provide expert-level support for the network infrastructure that underpins our data center based services. Ensure that network service levels are monitored, reviewed and reported on a regular basis, and that the necessary steps are taken to resolve any issues or negative trends that may be identified. Ensure that network and related activities are completed within agreed … timelines and/or in line with agreed schedules. Work with technical architects, project managers and other stakeholders to identify, assess, select and present appropriate network solutions for their needs. Build and deploy agreed solutions within specified timelines. Develop, implement and test disaster recovery and/or network fail-over plans as required. Maintain operational acceptance criteria for More ❯

Role: Senior Network Operations Engineer Department: Infrastructure & Operations, Digital Services Grade: 8 (£48,822 - £58,260) plus 15% Market Supplement Responsible to: Network Manager Campus: Any (Belfast, Coleraine, Derry~Londonderry) Reference: 039266 (Full-Time, Permanent) - ABOUT US - We are a university with a national and international reputation for excellence, innovation and regional engagement, making a major … to education, research and innovation and technology and knowledge transfer. - THE ROLE - To be responsible for the development, ongoing management and service quality of the Universitys communications and data network infrastructure services; and additionally, to be the lead technical specialist responsible for the implementation, development and support of all perimeter and WAN network security implementations. As part of … a wider team, you will have a shared responsibility for all wired and wireless data network infrastructure implementations and associated service offerings, all network technology management platforms and monitoring systems; inclusive of all network services in their associated physical and virtualised implementations and University wide network BCP/DR and associated service resilience configurations. This is More ❯

Role: Senior Network Operations Engineer Department: Infrastructure & Operations, Digital Services Grade: 8 (£48,822 - £58,260) plus 15% Market Supplement Responsible to: Network Manager Campus: Any (Belfast, Coleraine, Derry Londonderry) Reference: 039266 (Full-Time, Permanent) - ABOUT US - We are a university with a national and international reputation for excellence, innovation and regional engagement, making a major … to education, research and innovation and technology and knowledge transfer. - THE ROLE - To be responsible for the development, ongoing management and service quality of the Universitys communications and data network infrastructure services; and additionally, to be the lead technical specialist responsible for the implementation, development and support of all perimeter and WAN network security implementations. As part of … a wider team, you will have a shared responsibility for all wired and wireless data network infrastructure implementations and associated service offerings, all network technology management platforms and monitoring systems; inclusive of all network services in their associated physical and virtualised implementations and University wide network BCP/DR and associated service resilience configurations. This is More ❯

Network Infrastructure Engineer -Fully Remote -6 months initial contract -Outside IR35 -ASAP Start Currently recruiting for a seasoned Network Infrastructure Engineer, working with our leading Edinburgh-based client, specialising in digital transformation. The Network Infrastructure Engineer will be tasked with working on a large programme of projects and upgrades to the Cisco-based network More ❯

Network Infrastructure Engineer -Fully Remote -6 months initial contract -Outside IR35 -ASAP Start Currently recruiting for a seasoned Network Infrastructure Engineer, working with our leading Edinburgh-based client, specialising in digital transformation. The Network Infrastructure Engineer will be tasked with working on a large programme of projects and upgrades to the Cisco-based network More ❯

About the Job We’re looking for a Senior Network Engineer to join our Engineering team and take the lead on building the networking foundations of our large-scale, social-first multiplayer world. You’ll design and optimize low-level systems inside Unreal Engine 5 , enabling seamless transitions across server instances and maximizing concurrent player support per … traceroute). Collaborate closely with gameplay programmers and designers to align networking systems with gameplay goals, including combat, traversal, and social systems. Must-Haves: 5+ years of experience in network programming for games, including shipping multiplayer titles in Unreal Engine. Deep understanding of TCP/IP , UDP , sockets , NAT traversal , packet fragmentation , and latency mitigation techniques. Proficiency in C++ … such as Unreal Insights , Wireshark , netstat, perf, etc. Familiarity with authentication , matchmaking , and session management systems. Experience working on MMO or large-scale multiplayer games . Strong understanding of network infrastructure (switches, routers, VLANs, firewalls) and their impact on real-time performance. Comfortable working in Linux , and familiar with Git and/or Perforce . Nice-to-Haves: Experience More ❯

small to mid-size market. About The Role The Platform Services and Build department are responsible for the architectural design, engineering and ongoing maintenance of our Data Centres, Core Network, Enterprise Cloud Platform, Unified Communication/Voice products and revenue. Our Senior Network Platform & Delivery Engineers at Six Degrees are responsible for taking the technical lead when … delivering projects and will assist with running the network platform as a hybrid role. The role also assists the wider business with technical advice when needed and provide support during the full lifecycle of a project. The role acts as technical lead engineer on complex design and migration work, to manage, build, and deliver customer elements of migration … well as working with the Project Manager to agree realistic timescales for migration and transformation deliverables, and flag in a timely fashion any risks to the project plan. The Senior Network Platform & Delivery Engineers assist with maintaining, operating and running the Network Platform and its devices, comprising of engineering-level configuration and operation of the network. Capacity More ❯

Role: Senior Network Operations Engineer Department: Infrastructure & Operations, Digital Services Grade: 8 (£48,822 - £58,260) plus 15% Market Supplement Responsible to: Network Manager Campus: Any (Belfast, Coleraine, Derry~Londonderry) Reference: 039266 (Full-Time, Permanent) - ABOUT US - We are a university with a national and international reputation for excellence, innovation and regional engagement... More ❯

Role: Senior Network Operations Engineer Department: Infrastructure & Operations, Digital Services Grade: 8 (£48,822 - £58,260) plus 15% Market Supplement Responsible to: Network Manager Campus: Any (Belfast, Coleraine, Derry Londonderry) Reference: 039266 (Full-Time, Permanent) - ABOUT US - We are a university with a national and international reputation for excellence, innovation and regional engagement click apply for More ❯

We're hiring a Senior Network Security Engineer to build, secure, and evolve a global enterprise network. Your mission: strengthen the perimeter and application delivery layers—designing resilient, high-performing infrastructures across firewalling, proxy, DNS, and load balancing domains. Mission Objectives Design and implement new network security and traffic management solutions across global sites. Modernise and … standardise firewall, proxy, and load balancing architectures for scale and resilience. Engineer DNS and application traffic flows to improve latency, reliability, and visibility. Conduct deep-dive analysis of traffic paths (DNS → F5 → Firewall → Server) to eliminate bottlenecks and single points of failure. Review and implement changes under CAB discipline, ensuring stability and rollback readiness. Partner with Security, Platform, and … DNS & Proxy: Infoblox, Bluecoat, Zscaler or equivalent enterprise stack Routing/Switching: Cisco Catalyst, Nexus (OSPF, BGP, VRF) Monitoring & Tooling: ServiceNow, Zabbix, Centreon, Nagios Profile 7+ years' experience in network & security engineering within large-scale production environments. Strong expertise in firewall, proxy, DNS, and load balancing configuration and lifecycle management. Proven ability to design and implement resilient network More ❯

enterprise organisations across finance, professional services, and technology. They’re known for delivering secure, resilient, and scalable infrastructure solutions, and are now looking to strengthen their team with a Network Engineer who can play a key role in client delivery. The Role This is a hands-on position where you’ll be responsible for designing, implementing, and supporting … network solutions across a variety of client environments. You’ll work closely with consultants, project managers, and client stakeholders to ensure networks are secure, reliable, and future-ready. Key Responsibilities Design, configure, and maintain LAN/WAN, firewalls, VPNs, and wireless solutions Support client projects including migrations, upgrades, and new deployments Troubleshoot complex network issues and provide escalation … support Implement and maintain network security best practices (firewalls, IDS/IPS, NAC) Collaborate with cloud and infrastructure teams on hybrid solutions Produce documentation and contribute to knowledge sharing within the consultancy Skills & Experience Strong background in Cisco, Fortinet, or Palo Alto networking technologies Proven experience with routing, switching, and firewall management Solid understanding of network security principles More ❯

HYBRID AZURE NETWORK & INFRASTRUCTURE ENGINEER | Juniper, Palo Alto, Azure Cloud Networking, Scripting | £90,000 - 100,000 plus 20-25% bonus 4 DAYS PER WEEK IN LONDON OFFICE - St James/Green Park AZ-104/AZ-700, Juniper, Palo Alto firewalls, Azure Cloud Networking Scripting - either Terraform or Powershell Network monitoring, high availability hybrid Cloud environment (Azure … Global Investment Fund Manager 4 days in the London office, 1 day WFH This impressive, privately owned Investment Fund Manager is seeking an experienced Network Engineer to join their small IT team in London. Reporting to the Head of Infrastructure, you will take ownership of ensuring high availability of a complex hybrid Cloud environment working with Juniper, Palo More ❯

Infrastructure Engineer with network skills Azure cloud, Terraform, Networking, Firewalls, Palo Alto 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure Engineer with solid understanding of Networking. The role will focus on maintaining the firms current hybrid cloud, network, Internet and … connectivity infrastructure, and the firewall estate for a demanding business environment. The individual will deal with various issues, including On-Prem/Cloud Infrastructure, networking problems, and routine scheduled network infrastructure upgrades. The candidate must be hands-on and have experience working with Azure Cisco/Juniper Firewalls Windows Server IaC concepts Scripting know-how using PowerShell and Terraform More ❯

A Network Team leader or aspiring Team Leader is required for this Managed Service Company based in Surrey. You will be responsible for leading and managing a Second Line Engineering Team, while providing technical hands on support. You will act as the escalation point for the Second Line Team, ensuring that the team have the technical support, guidance and … procedures to effectively manage all/Incidents and Requests within customer Service Level Agreements. Requirements Cisco Certified Network Professional (CCNP) certification as a minimum requirement, with strong proficiency in Cisco routing and switching technologies (Catalyst/Nexus Switches, Layer 2 and Layer 3 switching, VLAN segmentation, NAT, DNAC) and protocols (OSPF/EIGRP/BGP) as well as wireless More ❯

Infrastructure Engineer with network skills Azure cloud, Terraform, Networking, Firewalls, Palo Alto 4 days a week in the office in London We are working with an Investment Manager in London who are seeking an experienced Infrastructure Engineer with solid understanding of Networking click apply for full job details More ❯