1 to 25 of 29 Permanent Senior Network Engineer Jobs in London

Senior Network Engineer - Senior Network Engineer - Palo Alto, Azure, AWS, Gaming We are seeking a highly experienced and enthusiastic Network Lead/Senior Network Engineer to join our team at a leading Gaming & Sports industry client. Our ideal candidate is … in Palo Alto Next Generation GlobalProtect Firewalls, F5 and Meraki devices, and VPNs. Knowledge of WAN optimisation through Riverbed, SDN (Software Defined Networking), and network automation is highly advantageous. In this role, you will be responsible for leading the design and engineering of our network, managing WAN, routers More ❯

Senior Network Engineer Hybrid - London Short-term contract (2 weeks work) About Ovyo: Ovyo is an professional services company specializing in the satellite, telecommunications, media, and broadcasting, transportation and many more sectors. Our management team is located in the UK and Portugal and we have technical teams … based across other European countries, US and India. One of our clients is looking for a Senior Network Engineer to join them on a 2 week project, hybrid working out of London. Here your objective will be to work closely with stakeholders to collect technical and functional … to effectively communicate needs to vendors or service providers. Responsibilities: Engage Stakeholders : Collaborate with IT, facility managers, security, and end-users to identify wireless network needs Conduct Site Surveys : Perform or oversee predictive and physical wireless site surveys to assess RF environment and review existing infrastructure compatibility. Document Specifications More ❯

Senior Network Engineer Berkeley Research Group provides independent advice, data analytics, authoritative studies, expert testimony, investigations, and regulatory and dispute consulting to Fortune 500 corporations, financial institutions, government agencies, major law firms, and regulatory bodies around the world. BRG experts offer sophisticated economic, financial, and analytical advice … intellectual property, restructuring, valuation, and workforce issues. The firm also assists clients in compliance, business process improvement, and strategy consulting. We are seeking a Senior Network Engineer to join our Global IT team, ideally based in London, but Brussels or Rome are also options. The team manages … MDF rooms, overseeing third-party NOC relationships, and handling Business Continuity Planning and IT Disaster Recovery (BCP/DR). An emphasis on perimeter network security configuration is essential, applying to datacenter, branch office, and cloud networks to ensure security through a Zero Trust approach. The role requires building More ❯

Senior Network Engineer – London (Hybrid) - £75,000 - £100,000 + Bonus + Benefits We’re looking for a skilled Senior Network Engineer to join our clients dynamic team. In this role, you’ll design, implement, and maintain critical networking infrastructure while driving automation and … efficiency. Key Responsibilities: Oversee the design, implementation, and maintenance of Cisco ACI infrastructure. Develop automation solutions for network tasks using Python, Ansible, and Terraform. Engineer and support enterprise-grade network systems, including Cisco routers, Nexus data centre switches, and wireless LAN controllers. Configure and manage Palo Alto … firewalls, ensuring adherence to robust security standards. Deploy and administer network access control solutions with Cisco ISE (802.1x and TACACS). Optimise uptime and performance using F5 Big-IP load balancers. Design and manage advanced routing solutions with protocols such as BGP and OSPF, as well as SD-WAN More ❯

Job Description Senior Network Engineer with Security and Cisco - City London Our Client urgently requires a Senior Network Engineer with a heavy background in Network Security on Cisco and Microsoft. The security and support of the company's network is paramount. Predominantly … 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. More ❯

Job Description Senior Network Engineer Hybrid - London Short-term contract (2 weeks work) About Ovyo: Ovyo is an professional services company specializing in the satellite, telecommunications, media, and broadcasting, transportation and many more sectors. Our management team is located in the UK and Portugal and we have … technical teams based across other European countries, US and India. One of our clients is looking for a Senior Network Engineer to join them on a 2 week project, hybrid working out of London. Here your objective will be to work closely with stakeholders to collect technical … to effectively communicate needs to vendors or service providers. Responsibilities: Engage Stakeholders : Collaborate with IT, facility managers, security, and end-users to identify wireless network needs Conduct Site Surveys : Perform or oversee predictive and physical wireless site surveys to assess RF environment and review existing infrastructure compatibility. Document Specifications More ❯

Senior Network Security Engineer Leading global manufacturing company is looking for a Senior Network Security Engineer to join their growing Network Security Engineering team. The successful candidate will design and implement network security solutions connecting on-premises and public cloud environments, with … focus on Infrastructure-as-Code (IaC) and GitOps methodologies. This is a very technical role and will play a key part in securing the network infrastructure. London 5 DAYS A WEEK. Responsibilities: Design and deploy network security solutions across cloud and on-premises environments. routing and switching protocols … network performance. Analyze operational needs and develop innovative solutions to strengthen network security. Required: Hands-on experience within enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. More ❯

Job Title: Senior Network Engineer Location: London (Canary Wharf) – Hybrid (1–2 days/week on site, parking available) Contract Type: Permanent Salary: Up to £70,000 (DOE) Security Checks: Financial checks may apply The Opportunity: This is a brilliant opportunity to join a well-established organisation … 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 … 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 More ❯

A fast-growing Managed Service Provider is seeking a Senior Network Engineer to support a leading High-Frequency Trading (HFT) client. This is a high-impact role focused on Ultra-Low Latency (ULL) network engineering, working onsite at the client’s prestigious offices. 💡 About the Role … You’ll work closely with traders, developers, and technologists on cutting-edge network projects , focused on delivering the fastest, most reliable connectivity possible across the globe. Expect a heavy focus on Market Data , Multicast Networking , Venue Onboarding , and ULL optimisations . Network Automation training will also be provided … perfect for an engineer looking to move into next-gen network skills! 🎯 Key Responsibilities Deliver low-latency, high-performance network solutions for Market Data and HFT applications. Drive new Venue Onboarding projects across global markets. Engineer and optimize multicast and market data distribution. Implement, configure, and More ❯

A fast-growing Managed Service Provider is seeking a Senior Network Engineer to support a leading High-Frequency Trading (HFT) client. This is a high-impact role focused on Ultra-Low Latency (ULL) network engineering, working onsite at the client’s prestigious offices. 💡 About the Role … You’ll work closely with traders, developers, and technologists on cutting-edge network projects , focused on delivering the fastest, most reliable connectivity possible across the globe. Expect a heavy focus on Market Data , Multicast Networking , Venue Onboarding , and ULL optimisations . Network Automation training will also be provided … perfect for an engineer looking to move into next-gen network skills! 🎯 Key Responsibilities Deliver low-latency, high-performance network solutions for Market Data and HFT applications. Drive new Venue Onboarding projects across global markets. Engineer and optimize multicast and market data distribution. Implement, configure, and More ❯

Senior Network Engineer - London (Hybrid) - £75,000 - £100,000 + Bonus + Benefits We're looking for a skilled SeniorNetwork Engineer to join our clients dynamic team. In this role, you'll design, implement, and maintain critical networking infrastructure while driving automation and efficiency. Key Responsibilities … Oversee the design, implementation, and maintenance of Cisco ACI infrastructure. Develop automation solutions for network tasks using Python, Ansible, and Terraform. Engineer and support enterprise-grade network systems, including Cisco routers, Nexus data centre switches, and wireless LAN controllers. Configure and manage Palo Alto firewalls, ensuring adherence … to robust security standards. Deploy and administer network access control solutions with Cisco ISE (802.1x and TACACS). Optimise uptime and performance using F5 Big-IP load balancers. Design and manage advanced routing solutions with protocols such as BGP and OSPF, as well as SD-WAN implementations. Utilise tools More ❯

and get involved in other areas e.g. Infrastructure, Virtualisation & Security. If the answer is yes we could have the job for you Role - Snr Network Analyst - AKA Network Engineer, Network and Infrastructure Engineer, Network and Systems Engineer Salary - 45 - 53K + 12.5% Pension … rising to 30 + Private Health/Dental Location - London - West End - 4 days office The role We’re looking for a hands-on engineer to help us ensure our clients systems stay secure, available and high-performing. You’ll troubleshoot and resolve issues, support daily operations, and play … a key role in upgrading and maintaining everything from firewalls to virtualised servers. You’ll work across: Network & system infrastructure (Cisco, Palo Alto, Fortinet) Virtualisation, storage, backup and disaster recovery Security tools (SIEM, MFA, NAC), scripting & automation Vendor coordination and compliance standards You have .. CCNA certified (CCNP desirable More ❯

Senior Consultant - IT Network Engineer L3 - London Consultant Domain Network Data networking Access technologies Company: ITL UK Requisition ID: 132610BR Role - Senior Consultant Location - London Roles and Responsibilities: Team Collaboration and Leadership: Collaborate with cross-functional teams and provide technical guidance and mentorship to junior … network engineers. Participate in architecture review boards and provide expertise and recommendations on network-related projects. Stay updated on industry trends, certifications, and best practices to enhance professional knowledge and expertise. Network Design and Architecture: Assess the organization's network infrastructure and identify areas for improvement … or optimization. Design, develop, and document network architecture blueprints, including high-level and low-level network designs. Define network standards, protocols, and guidelines to ensure consistency and scalability. Evaluate emerging technologies and industry trends to incorporate innovative solutions into network designs. Network Performance and Optimization More ❯

IT Senior Network Systems Engineer Our Client is a Bank based in the City of London, looking to recruit an IT Senior Network Systems Engineer ideally with at least 7 to 10 years of experience in IT, preferably from the banking financial industry. You … operate efficiently. The Client would like the following key skills: CCNP level networking Solarwinds - Service Desk Software experience Experience of Palo Alto firewalls Firemon - Network Security Devices and Policy Management Complex Switches experience is essential. Experience of Avaya PABX systems Responsibilities: Responsible for the maintenance of the IT infrastructure … of daily and periodic reports for the London Compliance team to ensure adherence to the Anti Money Laundering Provisions. Overall networking equipment monitoring (i.e. Network Switches, Firewall, and other appliances) and support. Plan and carry out maintenance checks to ensure IT Operations and infrastructures are running smoothly and ensure More ❯

Role : Senior Network & Infrastructure Engineer/Manager Location : Westminster - Hybrid (4 days onsite/1 wfh) Salary : £70,000 + Benefits The position: I am working with a well known members institution in search of a Senior Network & Infrastructure Engineer based out of their … Westminster office. The role will be supporting and maintaining the operations of the business as well as leading on network and infrastructure projects. They are a hybrid environment so the position also gives you exposure to Azure cloud. The ideal candidate will have good experience supporting a wintel/… o365 environment as well as experience in firewall upgrades, network upgrades and wifi upgrades. This role will also manage a couple of junior engineers (no management experience necessary). The role is based in Westminster with 1-2 days working from home. Further detail: To configure, maintain, secure & develop More ❯

x Senior Network Engineer - Citrix/Python - Up to £300k Total Comp One of the world's leading quantitative trading firms are searching for 2 x highly skilled and experienced Network Engineers to join their team (1x perm, 1 x contract). Below I have included … of the role, company, and requirements. Please review and if the opportunity seems like a good fit share your CV! Role: Responsible for handling network installation, configuration, and maintenance across their office, data-centre, and colocation sites. A focus on Cisco and Arista equipment, particularly routers and switches. Role … will focus on project work, but will sit as a Point of Escalation for the Network Operations team Large volume of work to come from an on-going initiative to improve go to market speed closer to ultra-high frequency. As a result my client is heavily investing in More ❯

CACI Network Services is a rapidly expanding specialist IT and Networks consultancy offering a wide variety of opportunities to work within challenging and exciting environments with our major clients in Global Media, Banking, Government, Telecoms & Utilities. We are looking for a seasoned Wireless Network Engineer to join … Develop and enforce global standards for networking devices and configurations. Conduct and remediate findings from penetration tests and security assessments. Lead the migration of network infrastructure to align with new security frameworks. Perform site surveys and RF planning using tools like Ekahau or AirMagnet. Required Skills and Experience Proven … experience in wireless network engineering within banking or similarly regulated sectors. In-depth knowledge of Cisco wireless technologies, including multi-layer switches and routers (e.g., Cisco 6500 series). Strong understanding of VLAN segregation, DMZ configurations, VSS, OSPF, and high-availability setups. Hands-on experience with security tools such More ❯

Senior Networking Engineer Permanent £70,000 - £80,000 per annum 4 days a week on site in London I am looking for a Senior Networking Engineer to join a thriving IT solutions consultancy offering the chance to work on the most exciting data centre technologies! Currently … new data centre implementation project for a financial services client, this is a fantastic opportunity to work at the cutting edge of low-latency network design, colocation infrastructure, and network automation. You will play a critical role in designing, building, and supporting high-performance, highly available network … experience deploying networks in low latency Proven experience in financial trading environments. Solid knowledge of WAN technologies, optical networking, and fibre waves. Proficient in network automation (Ansible, Python, Jinja2, Git, Terraform, Jenkins). Experience in: Multicast configuration and troubleshooting Layer 1 MUX switching Packet tapping and timestamping Network More ❯

Job Overview: We are seeking an experienced Senior Network Engineer with deep expertise in Cisco ACI, SDN technologies, and broader traditional networking and security solutions. The successful candidate will be responsible for the design, implementation, automation, and operational support of complex network infrastructures, ensuring high availability …/ASA firewalls. Design, implement, and optimize wireless networks and load balancing solutions (F5 BigIP, BigIQ). Manage campus networking environments, firewall security, and network monitoring solutions. Utilize automation tools like Ansible to streamline and automate manual networking tasks. Work with Infoblox Suite (IPAM, DNS, DHCP) for efficient IP … address and domain management. Implement and maintain network monitoring tools such as Entuity, PRTG, and Prime Infrastructure. Adhere to ITIL processes and contribute to continuous process improvement initiatives. Collaborate cross-functionally with infrastructure, security, and application teams. Minimum Qualifications: Active SC Clearance (mandatory). Deep knowledge and hands-on 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 More ❯

Position Name : Network Engineer Reports to: Associate Director of Support Location/Type : UK Remote Atlas Technica's mission is to shoulder IT management, user support, and cybersecurity for our clients, who are hedge funds and other investment firms. Founded in 2016, we have grown 100% year over … professional yet friendly environment while promoting professional and career development for our Team Members. Join Atlas Technica now! We are looking for a skilled Network Engineer who will be responsible for designing, implementing, maintaining, and supporting the network infrastructure for our growing client base and our firm. … You will work within our systems engineering team. You should have a good understanding of designing and developing scalable, maintainable, highly available network architectures. We also expect you to be a good team player and be able to meet business objectives and SLAs. Responsibilities Organize network maintenance and More ❯

Cloud and Data Center, Networking, Webex (Collaboration) Job Id: Role Overview: As a Senior Network Software Engineer, you will collaborate with cross-functional teams, business partners, and stakeholders to design, provision, configure, operate, and maintain physical and virtual network hardware and software. Your expertise will be … crucial in anticipating network infrastructure issues and recommending improvements to functional processes or services. You are expected to lead with vision and influence decisions through your knowledge and expertise. Responsibilities: Network Design and Implementation: Design, implement, and operate large and scalable network backbones (ISPs) using IS-IS … BGP, and peering with customers. Network Device Automation: Develop and troubleshoot automation processes across various network devices and platforms, including Cisco routers, switches, and ACI. Automation Tools Development: Create, optimize, and maintain network automation scripts, tools, and workflows, integrating internal systems and third-party solutions. Network More ❯

Our client is currently hiring a Network Engineer to join a team of industry experts to manage and maintain the high-performance global network. Key Responsibilities: Network Monitoring and Troubleshooting: Proactively monitor and troubleshoot network issues to ensure optimal performance and reliability. Network Support: Provide … comprehensive network support for production and end-user environments. Market Connectivity Testing: Conduct rigorous testing of market connectivity to ensure seamless operations. Must-Haves: Experience: 3+ years in the fintech industry. Switching Expertise: Proficiency in Cisco and Arista switching technologies. Routing Skills: Strong knowledge of BGP, Multicast, and OSPF. … Network Monitoring Tools: Experience with Wireshark, Grafana, and other network monitoring tools. Nice-to-Haves: Certifications: CCNP or CCIE certification. Scripting: Python scripting skills. Operating Systems: Familiarity with Linux. Why Join? Top-tier Firm: Work with one of the leading HFT firms globally. Professional Growth: Collaborate with a More ❯

Senior Cyber Security & Network Project Engineer Location: Brighton/London/South East/Hybrid Package: £70-100K + Pack Type: Full-time | Award-winning MSP We're working with a highly respected, independent tech firm that’s redefining what great looks like in cybersecurity and … network solutions. With a track record of delivering some of the most complex infrastructure projects in the UK and Europe, they’re now looking to grow their senior engineering team with someone who can lead from the front — technically and strategically. This is a fantastic opportunity for an … experienced Cyber Security & Network Engineer who thrives in a hands-on role, enjoys client engagement, and wants to shape the future of secure, intelligent networks. The Role You’ll work closely with the presales, delivery, and solutions teams to design and implement market-leading network and security More ❯

upskill in a financial organization Hybrid working operating model About Our Client The client works in Financial Services. Job Description We are seeking a Senior Network Operations Engineer to join our London-based team. This is a technical, hands-on role focused on network monitoring, firewall … management, and infrastructure maintenance. The ideal candidate will have 8-10 years of experience in network operations and a strong background in routing, switching, and security. You will play a key role in ensuring network stability, performing firmware upgrades, managing day-to-day operations, and maintaining documentation. This … position is not a leadership role but requires a proactive approach to network management and problem-solving. Key Responsibilities Network Monitoring & Maintenance NOC experience is critical for this role. Ensure optimal performance and availability of network infrastructure. Utilize tools such as SolarWinds and Infoblox for monitoring and More ❯