1 to 25 of 103 Permanent Network Engineer Jobs in London

Job Title: Network Engineer Level 3 Location: London, UK Duration: 6-month contract (Inside IR35) Working Mode: Hybrid Job Description: This position is responsible for supporting the design, configuration, monitoring, and maintenance of network hardware, systems, and software. It includes preparing documentation for future reference and ensuring timely communication regarding network security and other issues. Essential … Duties: Develop and implement detailed logical designs in areas such as routing and switching, network security and firewalls, multicast architecture, MPLS, and SD-WAN (preferably). Develop secure network designs, maximizing the usage of routers and switches. Analyze traffic behaviors, identify, and resolve congestion or traffic issues. Establish procedures and best practices for data backups and disaster recovery … operations. Monitor network performance and determine necessary adjustments and future changes. Collaborate with internal and external customers to fill information gaps and communicate architecture, technical solutions, and DC audits. Work closely with the HQ Network team, updating the HLD and LLDs as needed, with hands-on experience in MS-Visio. Manage lifecycle activities like patching, firmware and OS More ❯

Senior Network Engineer – Hybrid Our client is urgently looking for an experienced Senior Network Engineer to join their team based in London, on a permanent basis. Please note, the role is Hybrid, with 2 days required on-site each week. You will be responsible for deploying, managing, and optimizing network infrastructure, ensuring high availability, security … as a brilliant benefits package including bonus, annual leave, leading pension scheme, private health cover, medical plan, life assurance, income protection, EV scheme and many, many more perks! Senior Network Engineer – Key Skills: Insurance or Financial Services background Network Infrastructure Deployment & Management Security & Firewall Administration SD-WAN & WAN Optimization Load Balancing & Network Optimization Wireless & LAN Infrastructure … Network Troubleshooting & Incident Response Documentation & Process Improvement Significant experience in enterprise networking, with hands-on expertise in: Palo Alto Firewalls (PAN-OS, GlobalProtect VPN, Threat Prevention) Cisco SD-WAN (Viptela/IOS XE)/Catalyst/ACI Aruba wireless networking, ClearPass NAC F5 BIG-IP (LTM, GTM, ASM) for load balancing Strong knowledge of routing protocols (BGP, OSPF, EIGRP More ❯

seamlessly connected. By prioritizing security, reliability, and user-centric solutions, we empower OpenAI employees to drive impactful AI research, corporate operations, and product innovation. About the Role As a Network Security Engineer at OpenAI, you will play a critical role in architecting and maintaining both campus and cloud network infrastructure. You will design and implement secure, scalable … and high-performing network solutions that bridge on-premises environments with public cloud environments. Your expertise in routing and switching will ensure optimal network performance and reliability across diverse environments. You will drive automation initiatives through Infrastructure-as-Code (IaC) and GitOps methodologies, streamlining network provisioning, enforcing configuration consistency, and optimizing IT workflows. Your responsibilities will also … include developing CI/CD pipelines tailored for IT infrastructure, enhancing deployment efficiency, and integrating robust network security measures. You will establish comprehensive observability and proactive issue resolution strategies. We are seeking individuals passionate about network automation, security, and scalable IT solutions that enhance both campus and cloud network operations. You should possess extensive experience with enterprise 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 is … 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. You More ❯

This appointment offers you the privilege of contributing to a highly accomplished team, entrusted with the design, implementation, and stewardship of resilient network and firewall infrastructures that are fundamental to critical banking operations on an international scale. You will be afforded significant influence over the evolution of the organisation's network estate, collaborating with esteemed professionals across continents. … SENIOR NETWORK ENGINEER Salary: £120,000 - £135,000Location: London A distinguished opportunity is presented for a Senior Network Engineer to join the ranks of a globally esteemed financial institution headquartered in London. This appointment offers you the privilege of contributing to a highly accomplished team, entrusted with the design, implementation, and stewardship of resilient network and firewall infrastructures that are fundamental to critical banking operations on an international scale. You will be afforded significant influence over the evolution of the organisation's network estate, collaborating with esteemed professionals across continents, and playing an instrumental role in ensuring the seamless delivery of services. What you'll do: * Conceiving, implementing, and overseeing robust 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 ❯

Network Engineer – Hybrid Our client is urgently looking for an experienced Network Engineer to join their team based in London, on a permanent basis. Please note, the role is Hybrid, with 2 days required on-site each week. You will play a key role in network troubleshooting, security enhancements, and performance tuning, while collaborating with … well as a brilliant benefits package including bonus, annual leave, leading pension scheme, private health cover, medical plan, life assurance, income protection, EV scheme and many, many more perks! Network Engineer – Key Skills: Insurance or Financial Services background Network Infrastructure Deployment & Management Security & Firewall Administration SD-WAN & WAN Optimization Load Balancing & Network Optimization Wireless & LAN Infrastructure … Network Troubleshooting & Incident Response Documentation & Process Improvement Palo Alto Firewalls (PAN-OS, GlobalProtect VPN, Threat Prevention) Cisco SD-WAN (Viptela/IOS XE)/Catalyst/ACI Aruba wireless networking, ClearPass NAC F5 BIG-IP (LTM, GTM, ASM) for load balancing Strong knowledge of routing protocols (BGP, OSPF, EIGRP) and switching technologies Experience with firewall rule configurations, VPN setups 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 around More ❯

Demonstrated success in supporting and managing enterprise-level network infrastructures Skilled in deploying and maintaining Cisco routers/switches, Fortinet firewalls and switches, and network access control (NAC) systems; experienced with FortiClient VPN Deep understanding of routing protocols, particularly OSPF and BGP Proficient in configuring and managing NetApp SAN environments using iSCSI or Fibre Channel technologies Knowledgeable in … implementing VLANs, QoS policies, VPN configurations, and network segmentation strategies Holds certifications such as Cisco CCNA/CCNP or Fortinet NSE Experienced in scripting and automating network tasks using tools like PowerShell, Ansible, or Python Background in hybrid networking across cloud platforms including AWS, Azure, or comparable environments Adept at diagnosing complex issues with strong analytical and problem … solving capabilities Effective at managing critical network incidents both independently and as part of a team Strong written and verbal communication skills with a focus on clear documentation and engaging stakeholde More ❯

In your role you will support complex network architectures by developing, designing, configuring, and implementing detailed network engineering strategies/solutions that meet and/or exceed capability, flexibility, scalability, performance, and reliability objectives for a variety of large projects, across multiple technologies, within technical area of expertise. You will also provide technical leadership to team/vendor …/contractor resources, ensuring viability of designs, flawless execution, and seamless transition into the production environment. Responsibilities: Independently perform highly complex assignments. Network design, architecture, management, and deployment of new and existing routing and switching within campus, cloud and data center networks. Lead proper execution of network changes & updates in accordance with corporate security policies to meet business … requirements. Responsible for network performance, as well as conformance to security hardening standards and assessment of CVEs. Ability to troubleshoot network-related issues in a logical manner and complete problem resolution management. Research, recommend, and establish innovative solutions for proper capacity planning that scale with the business growth. Where possible, introduce automation for daily routine administrative tasks. Collaborates More ❯

The team you'll be working with: This role is expected to provide BAU operational support across a wide range of customer network infrastructure, including health checks and reporting in parallel with managing incidents, problems, requests and changes in line with ITIL best practice and ensuring that SLA's are maintained. What you'll be doing: Managing incidents and … Input into the development of infrastructure roadmaps, customer proposals, impact assessments and statements of work for the delivery of further solutions. Contribute to delivering technical excellence across the wider Network team. Delivery of project-related tasks such as the installation and configuration of new equipment. To input into the design and implementation of new infrastructure platforms, including the creation … In-depth experience deploying and managing functional networks (LAN, WLAN, WAN, VPN). In-depth experience of configuring, installing and maintenance of networking hardware - routers, switches, firewalls and other network devices. In-depth understanding of communication protocols (mainly TCP/IP). In-depth experience of the following Layer 2, Layer 3 technologies: BGP, OSPF, EIGRP, VRF, DNS, DHCP More ❯

IT Senior Network Systems Engineer Our Client is a Bank based in the City of London, are looking to recruit an IT Senior Network Systems Engineer ideally with at least 7 to 10 years of experience in IT ideally from within the banking financial industry. You will be working in a small team managing the day … ensure that the Bank can 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 Responsible for the maintenance of the IT infrastructure of the Bank by providing first … to ensure the smooth running 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 To plan and carry out maintenance checks to ensure IT Operations, infrastructures are running smoothly and ensure daily routine task completeness To More ❯

independent consultancy of 1000 plus people, that uses powerful cutting edge IT tools across pensions and financial services, energy, health, and analytics sectors. What's the role? As the Network Infrastructure Azure Engineer, you will be working at the intersection of traditional network infrastructure and cloud network infrastructure. You will support an environment consisting of Meraki … Develop, support and continuously improve the technology infrastructure, spanning multiple physical office and numerous MS Cloud subscriptions Maintain the Teams Telephony Solutions Hands-on implementation of WAN solutions and network migration tasks based on physical and cloud platforms Hands-on implementation of Wireless Networks Design and implement standardised templates and configuration baselines, that enable teams to efficiently self-serve … solutions where appropriate Maintain and manage access to Console Services Proactively drive the automation of manual or repetitive network infrastructure tasks to reduce overheads and standardise practises Manage and implement security control measures such as access control lists, DDoS protection etc Management of Azure, AWS, and Google Computer Cloud Virtual Networks Configure and support WAN technologies, including OSPF/ More ❯

s the first point of contact for our clients, and is heavily involved in the delivery of timely and effective technical solutions. The core focus of the 2md line Network Connectivity Service Desk Engineer will be to take ownership and successfully resolve complex technical incidents and requests logged by clients. This will mean investigating issues, troubleshooting and providing … first line level experience working in a managed service/datacentre/NOC environment would be beneficial, as would experience working in a shift based environment.As a 2nd line engineer you will need to have understanding and experience in operational environment equivalent to a 1st line faults desk along with experience in working in a SP/ISP/ More ❯

Where you'll fit in & what our team goals are In your role you will support complex network architectures by developing, designing, configuring, and implementing detailed network engineering strategies/solutions that meet and/or exceed capability, flexibility, scalability, performance, and reliability objectives for a variety of large projects, across multiple technologies, within technical area of expertise. …/vendor/contractor resources, ensuring viability of designs, flawless execution, and seamless transition into the production environment. How you'll spend your time Independently perform highly complex assignments. Network design, architecture, management, and deployment of new and existing routing and switching within campus, cloud and data center networks. Lead proper execution of network changes & updates in accordance … with corporate security policies to meet business requirements. Responsible for network performance, as well as conformance to security hardening standards and assessment of CVEs. Ability to troubleshoot network-related issues in a logical manner and complete problem resolution management. Research, recommend, and establish innovative solutions for proper capacity planning that scale with the business growth. Where possible, introduce More ❯

Senior Network Engineer/Lead Network Engineer (12 month Fixed Term Contract) Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a leading global professional services firm who are looking for a Senior Network Engineer/Lead Network Engineer to join the team … Term Contract in their London office. The role will be Responsible for maintaining the existing LAN/WAN infrastructure as well as working on projects and Changes to the network infrastructure. Responsibilities: - Design, implement and manage complex network infrastructure using Cisco campus networking 9300 series and Cisco Nexus switches. - Administer and configure FortiGate Firewalls for advanced security measures … and threat management. - Provide technical support and troubleshooting for Fortinet products, including FortiGate, FortiAnalyzer, FortiManager, and other related solutions - Monitor network performance, identify issues, and perform necessary troubleshooting to maintain optimal network health. - Develop and enforce network security policies, procedures, and standards to protect organisational assets. - Maintain, troubleshoot, and support Wireless LAN Controllers and associated Wi-Fi More ❯

we do each day is meaningful - to our customers and our business. We believe we are 'In good company.' with everyone we interact with. We're looking for a Network Engineer Based in London, UK and reporting to the Global Head of IT Operations & Chief Information Security Officer, this newly created role will be a versatile and detail … oriented Network Engineer who will manage and support enterprise networking infrastructure with additional exposure to SAN storage technologies, particularly NetApp. The ideal candidate will have experience with routing and switching technologies, firewall management, and storage networking in complex enterprise environments. This role plays a key part in maintaining network performance, security, and reliability. What you will do … Network Infrastructure Management Configure, manage, and troubleshoot Cisco switches and routers Administer Fortinet firewalls and Fortinet-managed switches, including NAC (Network Access Control) integrations Monitor network performance, availability, and capacity, using tools such as SNMP, syslog, and NetFlow, Logicmon Routing & Protocols Design and support routing protocols, especially BGP and OSPF Ensure high availability and fault tolerance of More ❯

Job Title: Senior Network Engineer Delivery & Migrations Location: England (Home based with client visits across England). Salary: Up to £55,000 basic salary plus great benefits package Sector: Consultancy/Solution Provider The Company Our client is a professional services consultancy who specialise in providing businesses with software defined solutions, network assurance, network automation and … interesting projects in both the public and private sectors. Technology Partners Cisco/Meraki VM Ware Palo Alto Fortinet Juniper Aruba/HPE Microsoft AWS Role Snapshot As Senior Network Security Engineer you be an integral member of the delivery and migrations team. The role will entail assisting with migrations, day-to-day delivery tasks and providing ongoing … looking to take a step up from a BAU role, with the ambition to widen their remit in projects and delivery. Key Responsibilities Assisting with delivery and migration of network, data centre and security solutions. Provide exceptional customer services. Contribute to knowledge centre and keep documentation up to date. Be willing to work in a vendor agnostic environment and More ❯

members of the LGBTQ+ community, and people with disabilities to apply. Please let us know if you need reasonable adjustments at any point in the application or interview process. Network Engineer Role The Network Engineer role offers the opportunity to join a global, dynamic team that maintains a 24/7 low latency trading environment. You More ❯

see you providing vital support to this work, within a supportive and encouraging environment that puts the emphasis on teamwork. The Role You will be joining a team of network and infrastructure engineers, which sits within our Infrastructure profession. As a network engineer you will design, build, deploy, manage and troubleshoot Layer 2 and Layer 3 networks … and network services across our global platform. That could mean tackling large-scale enterprise deployments over several months, fulfilling short-term niche requirements or developing the next generation security systems that support our cyber operations. It all adds up to a varied role where you will develop your technical skills, enhance your troubleshooting skills and work with colleagues, customers … own your personal and professional development. There are no line management responsibilities in this role. About You You will need to demonstrate that you have either worked in a network engineering role in the past, or that you have built up experience in industry during a degree programme. Ideally, you could have around 18 months or more experience in More ❯

Description Network Engineer Location: West London (Twickenham) Clearance: High level of clearance required (SC/DV - 'Developed Vetting') Work Type - Fixed-Term 18 month contract UNLEASH YOUR POTENTIAL At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers' success. We empower our teams in the UK to … lifeblood of customer value - we are all catalysts for innovation and improvement and committed to continuous improvement in everything we do. The preferred candidate will demonstrate effective application of Network Engineering expertise and extensive knowledge across a variety of technologies and Platforms, Environments, Virtualized Environments, Networking Technologies and Data Storage Technologies. The role will provide technical exposure variance across … creation and ongoing maintenance of technical documentation (HLDs, LLDs, Work Instructions) and provide material to support the Project work or the Operational Support service. Your Role and Responsibilities. Provide Network Engineering skills and produce solution designs as part of the senior delivery team Work with partner delivery teams to design and implement modern, scalable Network using a range More ❯

Network Engineer - MSP Location: West London Salary: £42,000 - £50,000 DOE Job Type: Full-time | Permanent Industry: Managed Service Provider (MSP) Overview: We are a growing Managed Service Provider based in West London seeking a skilled and motivated Network Engineer to join our technical team. You'll work across a diverse client base, managing and … supporting network infrastructure, delivering project work, and providing high-level support. This role offers an excellent opportunity to work in dynamic environments and further your career in a fast-paced MSP setting. Key Responsibilities: Deploy, configure, and support routers, switches, firewalls, and wireless access points Troubleshoot network issues across Layer 1-3 in client environments (on-site and … remote) Configure VPNs (site-to-site and client-to-site), firewalls, and network security appliances Monitor network health using RMM tools (e.g., Auvik, ConnectWise, N-able) Implement VLANs, manage routing, and optimise network performance Design and support Wi-Fi networks, ensuring signal strength and stability Assist with cloud network integration (Azure/AWS), including hybrid setups More ❯

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

Onboarding KYC Associate (5 days a week in) Administration Assistant - Financial Services Our client is a Financial Market making company . We have a fantastic opportunity for an experienced Network Engineer to join our highly skilled Infrastructure team. The role involves delivering exceptional 3rd Line Support to the global infrastructure network and managing various network projects … of London, working for a Global FTSE business . The ideal candidate has the following experience: At least CCNP level certification or above Strong experience as a Level 3 Network Engineer Vendor Experience: Cisco and Meraki products Configuration and troubleshooting of Cisco FTD, Cisco FMC, Cisco Switches & Nexus 5k/9k switches Configuration and troubleshooting of Meraki Products … Catalyst Switches, Cisco ISR routers, and Cisco DNA Center In-depth experience with Cisco ISE (Identity Services Engine) Fundamental multicast troubleshooting skills Understanding and troubleshooting Azure cloud-based networks Network automation: scripting in Python Configuration and troubleshooting of Cisco AnyConnect remote access VPN Some Linux experience (preferred) Knowledge and application of ITIL processes Responsibilities include: Leading or contributing to More ❯