1 to 25 of 122 Senior Network Engineer Jobs in London

Social network you want to login/join with: A career at Janus Henderson is more than a job, it’s about investingin a brighter future together. Our Mission at Janus Henderson is to help clients define and achieve superior financial outcomes through differentiated insights, disciplined investments, and world-class service. We will do this by protecting and growing … align with your own, we would love to hear from you! Your opportunity Join a team of engineers that are responsible for designing, implementing, and maintaining the company's network infrastructure. You will work closely with other IT teams, vendors, and business stakeholders to ensure that the network is reliable, secure, and meets the needs of the organization. … with Cisco networking technologies, including Cisco IOS-XE routers and switches, Cisco Nexus datacenter switches, and Cisco 9800 Wireless LAN Controllers Expertise in Palo Alto firewalls, including Panorama, and network access control using Cisco ISE for 802.1x and TACACS Good understanding of F5 Big-IP load balancers, BGP and OSPF routing protocols, and SolarWinds network monitoring solutions Knowledge More ❯

Job details General information Reference 003598 Vacancy location Location United Kingdom, London, London Work Place Hybrid Region UK Vacancy details Job Profile Lockton - Experienced Professional Title Senior Network Engineer Description Lockton is the world's largest independent insurance broker. Dedicated to delivering innovative solutions and exceptional service. We have a fantastic opportunity for a skilled Engineer to join our team and contribute to our mission of excellence. Job Summary We are looking for a Senior Network Engineer with significant experience in enterprise network design, implementation, and security, with expertise in Palo Alto firewalls, Cisco SD-WAN and networking, Aruba wireless, and F5 load balancing solutions. The ideal candidate will be responsible … for deploying, managing, and optimizing network infrastructure, ensuring high availability, security, and scalability. As a Senior Network Engineer, you will play a key role in network troubleshooting, security enhancements, and performance tuning, while collaborating with cross-functional teams to support business continuity and IT modernization initiatives. Key Responsibilities • Network Infrastructure Deployment & Management • Security & Firewall More ❯

month ago Be among the first 25 applicants UBDS is seeking a highly skilled Senior Network Engineer Design with customer facing skills and hands on experience to join our Secure Connectivity team, playing a pivotal role in client facing projects and engagements. Responsibilities Design and deploy network solutions and enhancements to existing network deployments, software … across a number of technologies such as Cisco ASA/Firepower, Palo Alto, HPE Aruba EdgeConnect, SD-WAN, Wired and Wireless LAN, along with some more traditional/legacy network solutions You will be a problem-solver, passionate about networking,. Our customer-facing role will expose you to a diverse group of teams, providing endless opportunities for career … engineers within the team Effectively communicate with customers regarding technical issues and customer service inquiries, both orally and in writing Diagnose and troubleshoot wireless, security, switching, and other various network-related issues Own each customer case from initial creation to resolution Collaborate with other support team members to fix network outages, misconfigurations, and complex networking issues on customers More ❯

Join to apply for the Senior Network Engineer role at OpticoreIT 4 days ago Be among the first 25 applicants Join to apply for the Senior Network Engineer role at OpticoreIT Opticore IT is a specialist Network Engineer and Project Management consultancy offering a wide variety of opportunities to work within fast … paced, challenging environments across our client base spanning multiple sectors including Finance, Broadcast Media, Telecommunications and more. We are currently seeking a Network Engineer , to join our Network Practice ; within one of our Financial clients. This opportunitity requires expertise in Data Centre projects, advanced routing and Switching, and Firewalls. This is a hybrid position but you will … the office up to 2 days a week, based in the London . What you'll be doing: Lead the design, deployment, configuration, and maintenance of robust and scalable network solutions incorporating Cisco and Juniper routers, switches, and related technologies. Manage and administer Fortinet and Palo Alto Networks next-generation firewalls (NGFWs), including centralized management tools (e.g., FortiManager, Panorama More ❯

Paragon is searching for a Senior Network Engineer for a role with an Oil & Gas company in London. This is a staff role and will be in the office 4 days a week and remote for 1 day a week. Candidate must have experience of taking projects from design to post-implementation, experience with Arista and Palo … Alto highly desired, and must be CCNA or CCIE certified. Candidates must have at least 5+ years of network design and implementation experience (Data Center, Campus, Wi-Fi, Security). Position Title : Senior Network Security Engineer Contract Type : Staff Expected package : To be discussed. Location : London, UK. As a member of our client’s UK-based … IT team you will be playing a key role in maintaining and enhancing our global network infrastructure. You will ensure network stability, security, and efficiency across our operations while driving improvements and innovation. Key Responsibilities Network Design & Implementation: Contribute to the development and execution of client’s global networking roadmap. Network Monitoring & Troubleshooting: Maintain, monitor, and More ❯

the sustainable development of its assets in Gabon. We value a collaborative approach, promote diversity, and prioritize safety and integrity in all our operations. We are looking for a Senior Network Engineer to join our IT team, playing a key role in maintaining and enhancing our global network infrastructure. You will ensure network stability, security … and efficiency across our operations while driving improvements and innovation. Key Responsibilities Network Design & Implementation: Contribute to the development and execution of Assala's global networking roadmap Network Monitoring & Troubleshooting: Maintain, monitor, and resolve issues in Assala's global network infrastructure Security & Incident Management: Act as the primary contact for network security events, analysing alerts, vulnerabilities … and potential threats Supplier & Vendor Management: Manage relationships with network service providers, ensuring optimal WAN, LAN, and hardware performance Configuration & Optimization: Create and modify configurations on Cisco/Arista switches, routers, and firewalls (Firepower & Palo Alto) Threat Analysis & Mitigation: Utilise threat intelligence services and security tools to identify and address vulnerabilities Automation & Scripting: Implement network automation using Python More ❯

The Senior Network Engineer will interact directly with our high-profile, elite client base, ensuring they receive our first-rate service. This position will be responsible for all network and security designs, implementations, and day-to-day support for various client network infrastructures. The Senior Network Engineer will also be an integral … in handling various networking functions including data center operations, security, and firewall management, leveraging expertise in Cisco and Palo Alto technologies. This role offers visibility across all levels of senior management and presents an exciting opportunity to join a rapidly growing, global IT services provider. The Network Engineer must demonstrate a high level of professionalism and sound … service to RFA clients. Ideal candidates will have experience supporting IT in the financial services industry and have worked for a Managed Services Provider (MSP). Responsibilities Design complex network solutions for new and existing client sites, relocations, upgrades, expansions, and disaster recovery, with a focus on Cisco core network requirements. Assist in designing, building, and configuring global More ❯

Join to apply for the Senior Network Engineer role at Supermercados Guanabara 4 days ago Be among the first 25 applicants Join to apply for the Senior Network Engineer role at Supermercados Guanabara Job Title: Senior Network Engineer Location: London (Canary Wharf) – Hybrid (1–2 days/week on site, parking … disaster recovery testing to building toward an Infrastructure-as-Code and SecDevOps future. This is more than a support role, you'll help shape how the organisation evolves its network capability over the next 12–18 months. As a Senior Engineer experienced in leading complex projects and influence architecture, this is your chance to be part of … a journey. The Role You'll be a key part of the infrastructure team, working with experienced engineers and contractors to maintain and improve network services across a predominantly cloud-hosted environment. You'll have broad exposure across Cisco, Azure, and security tooling — supporting BAU, delivering infrastructure projects, and helping evolve the network towards greater automation and resilience. More ❯

the sustainable development of its assets in Gabon. We value a collaborative approach, promote diversity, and prioritize safety and integrity in all our operations. We are looking for a Senior Network Engineer to join our IT team, playing a key role in maintaining and enhancing our global network infrastructure. You will ensure network stability, security … and efficiency across our operations while driving improvements and innovation. Key Responsibilities Network Design & Implementation: Contribute to the development and execution of Assala's global networking roadmap. Network Monitoring & Troubleshooting: Maintain, monitor, and resolve issues in Assala's global network infrastructure. Security & Incident Management: Act as the primary contact for network security events, analysing alerts, vulnerabilities … and potential threats. Supplier & Vendor Management: Manage relationships with network service providers, ensuring optimal WAN, LAN, and hardware performance. Configuration & Optimization: Create and modify configurations on Cisco/Arista switches, routers, and firewalls (Firepower & Palo Alto). Threat Analysis & Mitigation: Utilise threat intelligence services and security tools to identify and address vulnerabilities. Automation & Scripting: Implement network automation using More ❯

Job Posting Title: Senior Network Engineer, EMEA Req ID: 10115437 Job Description: About the Role & Team Enterprise Technology at The Walt Disney Company is responsible for delivering the technology strategy, engineering, architecture, IT operations, and technical support that underpin the success of our global business. The Business Network Design Services (BNDS) team sits within this division … and focuses on designing and implementing resilient and scalable network infrastructure across Disney's various business units. From supporting broadcast and media production to enabling global content distribution, BNDS engineers play a vital role in ensuring Disney's network connectivity is robust, secure, and future-ready. The team works closely with architecture, operations, security, wireless, and cloud technology … partners to deliver integrated, best-in-class solutions. We are now seeking an experienced EMEA Senior Network Engineer to join our team - someone who combines strong technical expertise with excellent communication and project management skills to drive the delivery of complex, large-scale network initiatives across the EMEA region. A few reasons why we think you More ❯

Senior Network Engineer, EMEA Apply Now Apply Later Job ID 10115437 Location London, United Kingdom Business The Walt Disney Company (Corporate) Date posted Apr. 29, 2025 Job Summary: About the Role & Team Enterprise Technology at The Walt Disney Company is responsible for delivering the technology strategy, engineering, architecture, IT operations, and technical support that underpin the success … of our global business. The Business Network Design Services (BNDS) team sits within this division and focuses on designing and implementing resilient and scalable network infrastructure across Disney’s various business units. From supporting broadcast and media production to enabling global content distribution, BNDS engineers play a vital role in ensuring Disney’s network connectivity is robust … future-ready. The team works closely with architecture, operations, security, wireless, and cloud technology partners to deliver integrated, best-in-class solutions. We are now seeking an experienced EMEA Senior Network Engineer to join our team — someone who combines strong technical expertise with excellent communication and project management skills to drive the delivery of complex, large-scale More ❯

Job Title: Senior Network Engineer – Arista & Automation (Low-Latency DC Focus) Location: United Kingdom (Remote, with occasional site visits if needed) Day Rate: £420 - £430 (Inside IR35) Contract Type: Long-term rolling contract 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 … 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 ❯

Join to apply for the Senior Network Security Engineer role at Cyber Energia 2 weeks ago Be among the first 25 applicants Join to apply for the Senior Network Security Engineer role at Cyber Energia Direct message the job poster from Cyber Energia Full-time Resourcing Partner at Brook Green Supply part of the … CFP Energy Group Job Overview: As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment. This self-starter will bring ingenuity and expertise to design, implement, and … maintain secure, scalable, high-performing network solutions that connect on-premises and public cloud environments. The role emphasises driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures. Responsibilities: Network Design and Implementation: Design and implement secure, scalable, and high-performing network solutions bridging on-premises and 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 … 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 ❯

Job Title: Senior Network Engineer Location: London (Canary Wharf) – Hybrid (1–2 days/week on site, parking available) Employment Type: Permanent Salary: Up to £75,000 (DOE) Security Checks: Financial checks may apply The Opportunity: This is a brilliant opportunity to join a well-established organisation during a transformative time in their infrastructure journey, and networking … disaster recovery testing to building toward an Infrastructure-as-Code and SecDevOps future. This is more than a support role, you'll help shape how the organisation evolves its network capability over the next 12–18 months. As a Senior Engineer experienced in leading complex projects and influence architecture, this is your chance to be part of … a journey. The Role: You'll be a key part of the infrastructure team, working with experienced engineers and contractors to maintain and improve network services across a predominantly cloud-hosted environment. You'll have broad exposure across Cisco, Azure, and security tooling — supporting BAU, delivering infrastructure projects, and helping evolve the network towards greater automation and resilience. More ❯

Salary: GBP80000 - GBP87000 per annum As a Senior Network Engineer, you will collaborate closely with our network delivery and support partners to maximize uptime, ensure the integrity, and optimize the performance of our network infrastructure. About the Role: Join a dedicated Network and Security team responsible for maintaining the design and architecture of various … network services. Lead and support the delivery of critical projects, ensuring seamless operations across multiple regions. This role requires a commitment to flexibility and occasional out-of-hours work to sustain the critical network environment. Key Responsibilities: Collaborate with network delivery and support teams to maintain peak network performance and reliability. Design, implement, and manage network infrastructure, including Cisco, Riverbed, Meraki, and Zscaler technologies. Oversee network components such as load balancers and firewalls. Work flexibly, including out-of-hours as necessary, to support a critical environment. Participate in the design and architecture of network, voice, firewall, load balancer, and data centre services. Contribute to and lead critical projects across the EMEA, APAC and More ❯

Join to apply for the Senior Network Engineer role at hackajob 20 hours ago Be among the first 25 applicants Join to apply for the Senior Network Engineer role at hackajob Get AI-powered advice on this job and more exclusive features. hackajob is collaborating with Verisk to connect them with exceptional tech professionals … support to mitigate credit, lending, and cyber risks, and we advise companies on complex global issues such as climate change, catastrophes, and geopolitical matters. We are seeking a talented Senior Network Engineer to join our global IT team. In this role, you will design, implement, and maintain our network infrastructure and security systems. The ideal candidate … will have extensive experience in network administration, architecture, and security protocols, with a proven ability to troubleshoot and optimize network performance in a multi-cloud environment. Additionally, you will collaborate with our workforce services team to support our international office locations, providing onsite engagement and fostering strong partnerships. If you are passionate about network engineering and eager More ❯

Join to apply for the Senior Network Engineer role at Verisk Get AI-powered advice on this job and more exclusive features. Job Description At Verisk, we empower clients to manage risk with critical data and insights in the insurance, and financial services markets. Join us to build a meaningful career, create lasting business impacts, and receive … support to mitigate credit, lending, and cyber risks, and we advise companies on complex global issues such as climate change, catastrophes, and geopolitical matters. We are seeking a talented Senior Network Engineer to join our global IT team. In this role, you will design, implement, and maintain our network infrastructure and security systems. The ideal candidate … will have extensive experience in network administration, architecture, and security protocols, with a proven ability to troubleshoot and optimize network performance in a multi-cloud environment. Additionally, you will collaborate with our workforce services team to support our international office locations, providing onsite engagement and fostering strong partnerships. If you are passionate about network engineering and eager More ❯

training needed to advance. Recognized by Forbes as a World's Best Employer and a Best Employer for Women, we value diversity and inclusion. We are seeking a talented Senior Network Engineer to join our global IT team. In this role, you will design, implement, and maintain our network infrastructure and security systems. The ideal candidate … will have extensive experience in network administration, architecture, and security protocols, with a proven ability to troubleshoot and optimize network performance in a multi-cloud environment. Key Responsibilities: Develop, deploy, and manage robust network systems, addressing technical inquiries, offering expert support, and working closely with customers to design solutions and resolve issues. Act as a liaison between … the workforce service team and users, ensuring effective communication and resolution of network issues, with a focus on supporting international Verisk offices. Monitor network performance and ensure system availability and reliability. Implement and oversee security measures, including access authentication. Conduct regular security policy audits and assessments to identify vulnerabilities. Troubleshoot network issues and provide timely resolutions. Automate More ❯

Join to apply for the Senior Network Engineer role at News Corp 1 day ago Be among the first 25 applicants Join to apply for the Senior Network Engineer role at News Corp Equal Opportunity Employer All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, protected … across a range of media, including: news and information services, digital real estate services, book publishing, digital education, and sports programming and pay-tv distribution. About The Role The Senior Network Engineer role reports directly to the Manager, Network Operations, EMEA in the News Corp Infrastructure Operations team.. The EMEA Networks Operations team is responsible for … all NewsCorp EMEA sites. The Senior Network Engineer provides technical leadership for the team, taking responsibility for promoting technical excellence and consistent implementation to provide a high performing and stable network for NewsCorp EMEA’s needs. The Senior Network Engineer has oversight of the implementations through reviewing and contributing to HLDs and LLDs More ❯

Job Overview: As a Network Security Engineering team member, the Senior Network Security Engineer will specialise in firewalls and routing. The ideal candidate is a flexible, self-motivated individual who excels at multitasking and thrives in a fast-paced, challenging environment. This self-starter will bring ingenuity and expertise to design, implement, and maintain secure, scalable … high-performing network solutions that connect on-premises and public cloud environments. The role emphasizes driving automation through Infrastructure-as-Code (IaC) and GitOps methodologies, ensuring optimal network performance, and integrating robust security measures. Responsibilities: Network Design and Implementation: Design and implement secure, scalable, and high-performing network solutions bridging on-premises and public cloud environments. … Leverage routing and switching expertise (e.g., BGP, OSPF, MPLS) to ensure network performance and reliability across diverse environments. Analyze operational needs and proactively develop creative network solutions to address security challenges. Security and Firewall Management: Manage firewall configurations for the CyberEnergianetwork based on operational requirements. Develop and implement network security tools, produce threat models, and assess risks More ❯

The Senior Engineer is a senior technical authority and key resource within PD-ITSD with technical ownership of key IT systems deployed across EMEA and North America. The role requires a strong and broad technical skillset, exemplary communication skills, project management discipline and the capacity to balance operational support and strategic project delivery requirements fluidly and efficiently. … The senior nature of the role necessitates technical mentorship of junior staff and knowledge transfer to other related IT teams. The primary focus of the Senior Engineer is the maintenance and operations of existing systems, and the development, design, implementation, and management of scalable, secure, and highly available cloud network infrastructure across SMBC EMEA. The Senior Engineer will focus on network optimisation, security, and hybrid connectivity, while also incorporating SRE practices to ensure high reliability and rapid incident response. The organisation has invested in software defined networking and the Senior Engineer is expected to be proficient in the support and configuration of these solutions and provide input into the technical strategy More ❯

Network Engineer Consultant (Campus Routing and Switching) - This role is open to the following locations in UK : London , UK Edinburgh , UK Description: 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 … 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 network Troubleshoot network issues and outages, schedule upgrades, and collaborate with network architects on network More ❯

Network Engineer Consultant (Campus Routing and Switching) - This role is open to the following locations in UK : London , UK Edinburgh , UK Description: 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 … 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 network Troubleshoot network issues and outages, schedule upgrades, and collaborate with network architects on network More ❯

Network Engineer Consultant (Campus Routing and Switching) - This role is open to the following locations in UK : London , UK Edinburgh , UK Description: 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 … 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 network Troubleshoot network issues and outages, schedule upgrades, and collaborate with network architects on network More ❯