1 to 25 of 66 Permanent Network Engineer Jobs in the City of London

Title : Network Engineer with Cisco Unified Communications Manager Location : London (Hybrid) Duration : 6-12 Months Must Have : Cisco ThousandEyes, UC CUCM (Unified Communications Cisco Unified Communications Manage) and Voice. The Network Engineer Consultant will be responsible for designing, implementing, and maintaining the network infrastructure of our organization. This role requires a deep understanding of routing … and switching technologies to ensure the efficient and secure transfer of data across the network. It will support the Unified Communication (UC) teams’ program of work focusing on network engineering aspects. Responsibilities: Design and implement functional network infrastructure (routing, switching, Wi-Fi) that ensures the integrity and availability of information and access. Work alongside the UC team covering … network aspects for the delivery of Microsoft Teams solutions. Supporting the UC teams migration of on-prem Cisco UC infrastructure to Cisco hosted or Cloud solutions. QoS implementations to aid the changing UC landscape with and Wide Area Network capacity planning and upgrades Rollout of Cisco ThousandEyes monitoring across the BlackRock network Troubleshoot network issues and More ❯

Title : Network Engineer with Cisco Unified Communications Manager Location : London (Hybrid) Duration : 6-12 Months Must Have : Cisco ThousandEyes, UC CUCM (Unified Communications Cisco Unified Communications Manage) and Voice. The Network Engineer Consultant will be responsible for designing, implementing, and maintaining the network infrastructure of our organization. This role requires a deep understanding of routing … and switching technologies to ensure the efficient and secure transfer of data across the network. It will support the Unified Communication (UC) teams’ program of work focusing on network engineering aspects. Responsibilities: Design and implement functional network infrastructure (routing, switching, Wi-Fi) that ensures the integrity and availability of information and access. Work alongside the UC team covering … network aspects for the delivery of Microsoft Teams solutions. Supporting the UC teams migration of on-prem Cisco UC infrastructure to Cisco hosted or Cloud solutions. QoS implementations to aid the changing UC landscape with and Wide Area Network capacity planning and upgrades Rollout of Cisco ThousandEyes monitoring across the BlackRock network Troubleshoot network issues and More ❯

Role- Senior Network Engineer Location- London, UK (Hybrid) Employmenent type- FTC(Fixed Term Contract) · Checkpoint, Juniper SRX and Palo Alto Firewall knowledge (deployment and administration). Priority would be Palo Alto and Checkpoint being used for the role around 65% of day-to-day operations. · Knowledge for Routing and Switching (35%) of the role would comprise of this … Layer 2 and Layer 3 concepts. · Knowledge of ACI Fabric’s would be useful including automation and scripting. · ISE NAC and monitoring tools such as Solarwinds. · Solid understanding of network fundamentals: This includes knowledge of network protocols (TCP/IP, BGP, OSPF), different network devices (routers, switches, firewalls), and network architectures (LAN, WAN, WLAN). · Network device configuration: The ability to configure routers, switches, firewalls, and other network equipment using vendor-specific commands or tools. · Troubleshooting and problem-solving: Network engineers must be adept at identifying, diagnosing, and resolving network issues that can arise from hardware, software, or configuration problems. Familiarity with network monitoring tools ·Good understanding of security principles: knowledge More ❯

Role- Senior Network Engineer Location- London, UK (Hybrid) Employmenent type- FTC(Fixed Term Contract) · Checkpoint, Juniper SRX and Palo Alto Firewall knowledge (deployment and administration). Priority would be Palo Alto and Checkpoint being used for the role around 65% of day-to-day operations. · Knowledge for Routing and Switching (35%) of the role would comprise of this … Layer 2 and Layer 3 concepts. · Knowledge of ACI Fabric’s would be useful including automation and scripting. · ISE NAC and monitoring tools such as Solarwinds. · Solid understanding of network fundamentals: This includes knowledge of network protocols (TCP/IP, BGP, OSPF), different network devices (routers, switches, firewalls), and network architectures (LAN, WAN, WLAN). · Network device configuration: The ability to configure routers, switches, firewalls, and other network equipment using vendor-specific commands or tools. · Troubleshooting and problem-solving: Network engineers must be adept at identifying, diagnosing, and resolving network issues that can arise from hardware, software, or configuration problems. Familiarity with network monitoring tools ·Good understanding of security principles: knowledge More ❯

Infrastructure & Network Engineer – Azure | Networking | Terraform London (4 days on-site) - Green Park nearest tube Permanent | Small, high-performing technical team We’re looking for a hands-on Infrastructure & Network Engineer to join an IT team of five. You’ll work across a modern hybrid environment — Azure, Microsoft 365, and on-prem infrastructure — supporting a fast … hats , enjoys variety, and wants to own solutions end-to-end rather than work in silos. What You’ll Do Maintain and monitor a highly available hybrid cloud and network infrastructure (Azure + on-prem). Support and enhance Azure services , including Private Endpoints and Microsoft 365. Implement and automate with Infrastructure as Code (Terraform/PowerShell) . Own … network operations – VPNs, inter-site connectivity, routing, switching, and security. Manage and update Palo Alto firewalls , Juniper/Cisco switches , and Windows Server environments. Support endpoint management (SCCM migration to Intune, laptops, and iPhones). Collaborate with peers and stakeholders to troubleshoot, document, and improve systems. Occasionally perform out-of-hours or weekend work for upgrades. What You’ll More ❯

Layer 2 and Layer 3 concepts. Knowledge of ACI Fabric’s would be useful including automation and scripting. ISE NAC and monitoring tools such as Solarwinds. Solid understanding of network fundamentals: This includes knowledge of network protocols (TCP/IP, BGP, OSPF), different network devices (routers, switches, firewalls), and network architectures (LAN, WAN, WLAN). Network device configuration: The ability to configure routers, switches, firewalls, and other network equipment using vendor-specific commands or tools. Troubleshooting and problem-solving: Network engineers must be adept at identifying, diagnosing, and resolving network issues that can arise from hardware, software, or configuration problems. Familiarity with network monitoring tools Good understanding of security principles: knowledge … of security concepts for firewall, VPN’s, data etc to maintain a healthy network. Roles and Responsibilities: Installing and configuring network devices: This involves setting up routers, switches, firewalls, and other network equipment according to network specifications. Troubleshooting network issues: When network problems arise, network engineers diagnose the cause and implement solutions to restore More ❯

Layer 2 and Layer 3 concepts. Knowledge of ACI Fabric’s would be useful including automation and scripting. ISE NAC and monitoring tools such as Solarwinds. Solid understanding of network fundamentals: This includes knowledge of network protocols (TCP/IP, BGP, OSPF), different network devices (routers, switches, firewalls), and network architectures (LAN, WAN, WLAN). Network device configuration: The ability to configure routers, switches, firewalls, and other network equipment using vendor-specific commands or tools. Troubleshooting and problem-solving: Network engineers must be adept at identifying, diagnosing, and resolving network issues that can arise from hardware, software, or configuration problems. Familiarity with network monitoring tools Good understanding of security principles: knowledge … of security concepts for firewall, VPN’s, data etc to maintain a healthy network. Roles and Responsibilities: Installing and configuring network devices: This involves setting up routers, switches, firewalls, and other network equipment according to network specifications. Troubleshooting network issues: When network problems arise, network engineers diagnose the cause and implement solutions to restore More ❯

Network Engineer | Global Financial Platform | London, Hybrid Be trusted to shape, build, and evolve a global network, not just maintain it. Our client is a global, modern, tech-focused financial platform with offices across London, the US, and EMEA. They’re expanding their infrastructure team and looking for a Network & Voice Engineer who wants to … work on design, implementation, and optimisation, from on-prem networking to Azure cloud connectivity and global voice systems. Key Responsibilities: Design, configure, and enhance a secure, scalable Cisco-driven network (LAN/WAN/Wi-Fi, VPN, firewalls, routing, switching). Support and develop voice and video systems (Cisco, Zoom, Teams) used across global offices. Partner with systems and … cloud engineers to refine hybrid on-prem + Azure environments . Troubleshoot and optimise network performance, driving uptime and stability. Contribute to global projects, from new site builds to modernising the firm’s network backbone. 📍London Office, Permanent Role, Hybrid working 💷Competitive salary + benefits Experience & Skills Required Ideally 6–15 years’ experience in network engineering within More ❯

Network Engineer | Global Financial Platform | London, Hybrid Be trusted to shape, build, and evolve a global network, not just maintain it. Our client is a global, modern, tech-focused financial platform with offices across London, the US, and EMEA. They’re expanding their infrastructure team and looking for a Network & Voice Engineer who wants to … work on design, implementation, and optimisation, from on-prem networking to Azure cloud connectivity and global voice systems. Key Responsibilities: Design, configure, and enhance a secure, scalable Cisco-driven network (LAN/WAN/Wi-Fi, VPN, firewalls, routing, switching). Support and develop voice and video systems (Cisco, Zoom, Teams) used across global offices. Partner with systems and … cloud engineers to refine hybrid on-prem + Azure environments . Troubleshoot and optimise network performance, driving uptime and stability. Contribute to global projects, from new site builds to modernising the firm’s network backbone. 📍London Office, Permanent Role, Hybrid working 💷Competitive salary + benefits Experience & Skills Required Ideally 6–15 years’ experience in network engineering within More ❯

Network Engineer – Zabbix Specialist 6 Month Contract – Inside IR35 Remote About the role Our Retail client is seeking a Network Engineer with deep expertise in Zabbix to lead the migration of legacy network monitoring tools to a modern, supported platform. This role supports the Network Tooling Refresh initiative, focused on replacing end-of-life … Zabbix-based solution. You’ll be instrumental in designing, developing, and implementing Zabbix to replace Cacti Monitoring and a bespoke Branch Asset Tracker, ensuring seamless integration within a Cisco network environment. Key Responsibilities 1. Tool Migration & Integration Refactor existing tools (Cacti & Branch Asset Tracker) into Zabbix Configure SNMP-based data collection and visualisation 2. Design & Documentation Contribute to High … Level Design (HLD) Deliver Low-Level Design (LLD) documentation 3. Development Tasks Build and configure Zabbix proxies via code Update network devices to communicate with Zabbix via SNMP. Onboard devices into Zabbix and build custom dashboards. 4. Testing & Implementation Develop and execute test plans Manage change control and deployment Provide post-deployment support 5. Service Transition Conduct Knowledge Transfer More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments that … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on technical More ❯

Job Title: Senior Network Engineer - Cisco Professional Services Location: London (3 days onsite per week) Salary: £90,000 The Company A leading Cisco Professional Services Partner, this organisation specialises in delivering next-generation network infrastructure to clients in the financial and professional services sectors. Operating at enterprise scale, they design, implement, and optimise complex Cisco environments that … performance, security, and reliability. You’ll join a collaborative and technically accomplished team that’s passionate about innovation and continuous learning. This is an ideal environment for a motivated engineer looking to take the next step in their Cisco career, working on enterprise-level transformation projects alongside some of the industry’s most respected experts. Roles & Responsibilities As a … Senior Network Engineer, you’ll be responsible for designing, implementing, and maintaining advanced Cisco network solutions across large-scale financial and enterprise environments. Key responsibilities include: Designing, configuring, and deploying Cisco-based network infrastructure. Supporting enterprise network transformation and optimisation projects. Collaborating with consultants, architects, and client stakeholders on solution delivery. Providing hands-on technical More ❯

Lead Network Engineer London - Hybrid We're looking for a Lead Network Engineer to lead a small team within a fast-paced MSP. You will be hands-on within this leadership role , responsible for guiding a team of network engineers, managing escalations, and ensuring high-quality service delivery for managed services customers. Key Responsibilities: Act … as the technical escalation point for complex incidents and requests. Lead and mentor a team of network engineers, including 1:1s, performance reviews, and professional development. Ensure incidents and service requests are resolved efficiently and within SLA. Collaborate with internal teams and third-party vendors to deliver seamless service. Drive Problem Management processes and root cause analysis. Support onboarding … Proven expertise in enterprise networking (Cisco routing/switching, VLANs, BGP, OSPF, Meraki, DNAC). Experience with Fortinet and Palo Alto firewalls preferred. Knowledge of cloud networking (Azure) and network automation/scripting is a plus. Background in ITIL-based service management (Incident, Problem, Change). Previous team leadership experience is desirable. CCNP certification. The company can offer hybrid More ❯

Lead Network Engineer London - Hybrid We're looking for a Lead Network Engineer to lead a small team within a fast-paced MSP. You will be hands-on within this leadership role , responsible for guiding a team of network engineers, managing escalations, and ensuring high-quality service delivery for managed services customers. Key Responsibilities: Act … as the technical escalation point for complex incidents and requests. Lead and mentor a team of network engineers, including 1:1s, performance reviews, and professional development. Ensure incidents and service requests are resolved efficiently and within SLA. Collaborate with internal teams and third-party vendors to deliver seamless service. Drive Problem Management processes and root cause analysis. Support onboarding … Proven expertise in enterprise networking (Cisco routing/switching, VLANs, BGP, OSPF, Meraki, DNAC). Experience with Fortinet and Palo Alto firewalls preferred. Knowledge of cloud networking (Azure) and network automation/scripting is a plus. Background in ITIL-based service management (Incident, Problem, Change). Previous team leadership experience is desirable. CCNP certification. The company can offer hybrid More ❯

Lead Network Engineer When you join our Engineering Team at Telent, you'll be empowered to innovate and drive common solutions, working closely with technical experts who are proud of the impact their work makes. Come join a high-performing team doing complex and critical work. Help build and keep the nation's critical infrastructure connected and protected …/7. Reporting to the Head of Focal Engineering, the Lead Engineer will serve as the primary technical liaison for the Parliamentary Digital Service (PDS) representing Telent Engineering across the Palace of Westminster and the wider Parliamentary Cisco Enterprise Estate. This is a hybrid working role, with travel required to the Parliament Estate in London 1-2 days per … week initially. What you'll do: Act as the key technical point of contact between Telent Engineers and the Parliamentary Digital Service (PDS) for all aspects of network engineering. Support the delivery of a large-scale Cisco hardware refresh across the Palace of Westminster and wider Parliamentary Estate, ensuring minimal disruption to live services. Adhere to strict change control More ❯

Network and AV Engineer Network and AV Engineer (CCNA/Juniper) Central London £190 per day (Outside IR35) Contract (6 months initially) Start Date: December 2025 Skills and Experience: Experience configuring Juniper equipment Experience racking servers or network equipment (switches, routers etc.) Experience patching equipment in network cabinets Good/demonstrable knowledge of IP … will provide its own challenges depending on customer and client needs. Conduct site surveys, audit equipment, produce design documents Basic configuration of wireless access points, switches firewalls and routers. Network patching and tracing, network support and troubleshooting, plus network testing NB: Some weekend and out-of-hours work required and will be signposted 2-4 weeks in More ❯

Deployment Engineer, Network – London (remote to start, eventually Hybrid) £66,000 - £110,000 Depending on Experience We’re partnering with a fast-growing technology company that’s redefining enterprise networking from the ground up. Their mission: deliver internet infrastructure as reliable and seamless as a modern utility. They design and build their own hardware, software, and deployment systems … serving ambitious global brands with thousands of users and locations. As a Deployment Engineer, Network , you’ll translate complex customer requirements into high-performance wired and wireless network designs using in-house tools. You’ll own technical decision-making from design through to go-live, support network turn-up, and ensure flawless execution—directly impacting deployment … success. Required Skills & Experience: CCNA/CCNP certifications (wired specialists) OR CWMP/CWNE credentials (wireless) Proven experience designing and deploying enterprise wired and wireless networks Strong expertise in network performance, resilience, and scalability principles Proficiency with network design and configuration tools (experience with in-house/custom tools a plus) Hands-on troubleshooting skills across routers, switches More ❯

Deployment Engineer, Network – London (remote to start, eventually Hybrid) £66,000 - £110,000 Depending on Experience We’re partnering with a fast-growing technology company that’s redefining enterprise networking from the ground up. Their mission: deliver internet infrastructure as reliable and seamless as a modern utility. They design and build their own hardware, software, and deployment systems … serving ambitious global brands with thousands of users and locations. As a Deployment Engineer, Network , you’ll translate complex customer requirements into high-performance wired and wireless network designs using in-house tools. You’ll own technical decision-making from design through to go-live, support network turn-up, and ensure flawless execution—directly impacting deployment … success. Required Skills & Experience: CCNA/CCNP certifications (wired specialists) OR CWMP/CWNE credentials (wireless) Proven experience designing and deploying enterprise wired and wireless networks Strong expertise in network performance, resilience, and scalability principles Proficiency with network design and configuration tools (experience with in-house/custom tools a plus) Hands-on troubleshooting skills across routers, switches More ❯

Are you an experienced Network Engineer with excellent knowledge of Fortinet suite of products? Would you like own the network of a growing business as they look to adopt an enterprise approach to networking? Can you demonstrate the ability to see the bigger picture and influence those around you to embrace change and new opportunities? Do you … have robust technical knowledge across network hardware and software? This newly created role is an excellent opportunity for an ambitious network engineer to play a pivotal role in the continued development and modernisation across the whole network of a fast-growing company. As the successful applicant you will take ownership of the whole network which … and ways of working to deliver an enterprise-wide network. You will need to demonstrate and in depth knowledge of the Fortinet Product Suite alongside broad knowledge of multiple network technologies including security such as Sentinel and Microsoft Defender, experience of cloud networking tools and zero trust approach would be beneficial alongside exposure to Microsoft 365. Experience using Fortinet More ❯

Senior Cloud Network Engineer 👔 Crypto 📍 London (2-3 days p/w) 💵 £100-140k Do you want to work for a rapidly scaling Crypto startup who are backed by one of the top global banks? Do you want to play an integral role in the tech team, utilising both AWS Cloud and Networking skillsets? My client are … who's cutting edge approach to Trading and Asset Management is making big waves in the wider Crypto space. They now have an imminent requirement for a Senior Cloud Network Engineer to help with the ongoing support and optimisation of their platform. Their ideal candidate would have good knowledge of: Cloud (AWS) Core Networking (LAN/WAN, routing …/switching, firewalls, load-balancing, DNS) Network Security (Perimeter Networks/FWs, Proxies, Remote Access, SASE/VPN, DDoS) Palo Alto Firwalls Automation (Terraform, Ansible) Data Centres/OnPrem Support/Troubleshooting experience In return they would be offering a competitive salary along with a number of top benefits: Generous salary Annual Bonus Private Medical 25 days AL (+ More ❯

Senior Cloud Network Engineer 👔 Crypto 📍 London (2-3 days p/w) 💵 £100-140k Do you want to work for a rapidly scaling Crypto startup who are backed by one of the top global banks? Do you want to play an integral role in the tech team, utilising both AWS Cloud and Networking skillsets? My client are … who's cutting edge approach to Trading and Asset Management is making big waves in the wider Crypto space. They now have an imminent requirement for a Senior Cloud Network Engineer to help with the ongoing support and optimisation of their platform. Their ideal candidate would have good knowledge of: Cloud (AWS) Core Networking (LAN/WAN, routing …/switching, firewalls, load-balancing, DNS) Network Security (Perimeter Networks/FWs, Proxies, Remote Access, SASE/VPN, DDoS) Palo Alto Firwalls Automation (Terraform, Ansible) Data Centres/OnPrem Support/Troubleshooting experience In return they would be offering a competitive salary along with a number of top benefits: Generous salary Annual Bonus Private Medical 25 days AL (+ More ❯

Job title: Network Engineer Client: Elite FinTech Salary: £100,000-£170,000 + Bonus Location: London Skills: Cisco, Arista, Routing, Switching, Python, Ansible, Multicast The role: My client are seeking an experienced Network Engineer to join their team. Responsibilities: High and Low Level Design work Project delivery Upgrades and expansions in Data Centres Delivery of Multicast … solutions Network implementations Identifying areas for automation Core skills required: Cisco/Arista Python/Ansible An appreciation of Multicast CCNP or CCIE, Bachelors or Masters degree Please apply ASAP for more information. More ❯

Job title: Network Engineer Client: Elite FinTech Salary: £100,000-£170,000 + Bonus Location: London Skills: Cisco, Arista, Routing, Switching, Python, Ansible, Multicast The role: My client are seeking an experienced Network Engineer to join their team. Responsibilities: High and Low Level Design work Project delivery Upgrades and expansions in Data Centres Delivery of Multicast … solutions Network implementations Identifying areas for automation Core skills required: Cisco/Arista Python/Ansible An appreciation of Multicast CCNP or CCIE, Bachelors or Masters degree Please apply ASAP for more information. More ❯

Job title: Network Engineer Client: FinTech Salary: £80,000-£100,000 + Bonus Location: London Experience: 4-8 Years Skills: Low Latency, Routing and Switching, Python, Automation The role: My client, an Elite FinTech organisation, are looking for a mid-level Network Engineer to join their team. Key Responsibilities: Building, automating and ensuring reliability of low … latency networks Identifying areas for improvement Network monitoring Working on monitoring solutions Being a part of change and code reviews Skills Required: Strong Routing and Switching experience Low Latency experience highly desirable Network Automation – Python/Ansible Please apply ASAP for more information. More ❯

Job title: Network Engineer Client: FinTech Salary: £80,000-£100,000 + Bonus Location: London Experience: 4-8 Years Skills: Low Latency, Routing and Switching, Python, Automation The role: My client, an Elite FinTech organisation, are looking for a mid-level Network Engineer to join their team. Key Responsibilities: Building, automating and ensuring reliability of low … latency networks Identifying areas for improvement Network monitoring Working on monitoring solutions Being a part of change and code reviews Skills Required: Strong Routing and Switching experience Low Latency experience highly desirable Network Automation – Python/Ansible Please apply ASAP for more information. More ❯