23 of 23 Senior Network Security Engineer Jobs in London

# Senior Network Security EngineerJob Reference No.CR/030737Job Type: ContractLocation: Feltham, United KingdomJob Reference No.: CR/030737Penta Consulting are a technology service provider and leading outsourced partner helping to deliver professional and managed solutions across EMEA.Are you a highly skilled Network Security professional … with deep Cisco expertise and a passion for delivering complex network solutions? We are looking for an experienced Senior Network Security Engineer to join our team and work closely with enterprise customers, supporting critical infrastructure, security initiatives, and network transformation projects.Key Skills:Cisco ...

into the products, content and services millions of people love. And we do it all right here at Sky. Role/Team overview The Senior Network Security Engineer will be responsible for developing and implementing security strategies to protect the Organisation’s data, systems … networks. This includes monitoring network activity, identifying potential threats, responding to incidents, and ensuring compliance with applicable laws and regulations. The Senior Analyst will also provide guidance on best practices in cyber security as well as develop policies and procedures related to information security. What ...

seeking a highly motivated Senior Cloud Network & Security Engineer to join our Global Network Architecture & Engineering team. This role is focused on designing, securing, automating, and evolving next-generation network services across a large global enterprise. Working across AWS, Azure, Cloudflare, and other cloud … platforms, you will help define and engineer secure, scalable, and resilient connectivity spanning cloud, data centre, campus, branch, internet, SaaS, and hybrid environments. The role combines cloud networking, cloud security, internet edge services, platform engineering, network automation, and AI-enabled operations. You will play a key role ...

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 … 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 ...

000Sector: I.T. & CommunicationsJob Type: PermanentWork Hours: Full TimeContact: Jas GujralEmail: cv@nexusjobs.comTelephone: 020 7488 6900Apply for this job nowJob DescriptionSenior Network Engineer with Security and Cisco – City LondonOur 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 that benefit high-availability solutions.This role requires a responsible individual who can design and deliver secure networking solutions.Fast thinker ...

Markets is looking for an experienced Senior Network & Security Engineer to join our Technology team. This role plays a key part in designing, building and supporting our global network infrastructure, ensuring high performance, resilience and security across on-premise and cloud environments. You will … usual operations, supporting critical trading platforms in a fast-paced, regulated environment. Key ResponsibilitiesDesign, implement and maintain CMC Markets' global LAN, WAN and cloud network infrastructureDeliver network engineering and design for new initiatives, alongside ongoing BAU growth and optimisationMonitor network performance, capacity and availability, providing proactive support ...

Hamilton Barnes Associates Limited in London is seeking a senior Network Security professional to join a fast‐moving technology and risk management environment. Reporting to the Head of Security, you will lead infrastructure and network security efforts within the London network security team and collaborate with engineering colleagues. You will design, implement, and maintain Cisco ISE, automate security operations, gather requirements, and support the global infrastructure while delivering #J-18808-Ljbffr ...

Markets is seeking a Senior Network & Security Engineer to enhance our global network infrastructure in London. This role is crucial for ensuring high performance and security across our on-premise and cloud environments, supporting critical trading platforms in a fast-paced atmosphere. The ideal ...

Limited is seeking a Senior Network Security Engineer to design, implement and govern enterprise-scale security across networks, data, and cloud environments. You will monitor threats, investigate incidents, and drive improvements in security posture with advanced tooling and automation. Role requires hands-on expertise ...

London Metal Exchange Limited in London is seeking a Senior Network Security Specialist to design, implement and govern enterprise network security controls across on‐premises, cloud and containerised environments. You will lead Zero Trust and micro‐segmentation initiatives, work with multiple teams, mentor engineers … contribute to security by design while maintaining high availability of LAN/WAN/data centre services. #J-18808-Ljbffr ...

Penta Consulting Ltd in Feltham, United Kingdom, is seeking a Senior Network Security Engineer to lead Cisco security projects for enterprise customers, delivering complex infrastructure enhancements and security transformations on site. You will translate business requirements into technical solutions, perform Day-2 operations … collaborate with cross-functional teams; 8+ years experience and CCIE Security are preferred. #J-18808-Ljbffr ...

Hamilton Barnes Associates Limited is seeking a Senior Network Engineer to take technical ownership of design, implementation, and mentoring within a small engineering team. This home-based role includes occasional visits to our East London data centre and covers routing, switching, network security, wireless, cloud … networking, and Linux technologies. You will design, deliver, and support a hybrid network spanning on‐premises, data centre, and cloud environments, act as senior SME, mentor junior #J-18808-Ljbffr ...

Retail Company in London/Amsterdam (Hybrid) is seeking a Senior Network & Security Specialist for a 1-year fixed term contract. You will manage and scale the EMEA network across offices, stores, warehouses and showrooms, deploying Cisco Meraki and other cloud-managed equipment. The role requires … 5+ years of hands-on network engineering, strong cybersecurity experience, and expertise with Okta/Entra ID (SSO, MFA) and endpoint protection. #J-18808-Ljbffr ...

Secure is seeking a Network Security Engineer to join our 24x7 NOC in a hybrid role based in Central London. You will configure devices, manage firewalls and security policies, and sustain highly secure networks for a major financial services client. Ideal candidates have L2/ ...

Onyx-Conseil is seeking a Senior Network Engineer in London to support BAU operations and deliver secure networking solutions. You will design and implement firewall policies, manage IPS deployments, and uphold global standards across data-centre and branch networks. The role requires strong Cisco expertise, experience with ...

Secure in London is seeking an experienced Network Security Engineer to join our 24x7 NOC. You will support a globally operating bank, handling configurations, firewall policies, and high-priority incidents while coordinating with internal teams and the customer. Strong English communication and L2/L3 support experience ...

National Physical Laboratory seeks a Senior Network Engineer to lead on‐prem network design, deployment, and security within a hybrid infrastructure. You will manage Alcatel‐Lucent switches, Fortinet firewalls, and associated services, while coordinating with cybersecurity for secure, reliable connectivity across the UK site footprint. … work with virtualization, storage, and backup systems (e.g., VMware, Hitachi Storage Array, Rubrik, Nimble) and contribute to documentation and network #J-18808-Ljbffr ...

Gujral is seeking a Senior Network Engineer with a strong security background focused on Cisco implementations in the City of London. The role combines BAU support with design of scalable, secure networking solutions across data centre and branch environments. The candidate will diagnose issues, remediate ...

Viasat is seeking a Senior Network Engineer to ensure reliable, secure, and scalable enterprise network operations across on‐premises and cloud environments. You will contribute to network architecture, deployment, and operational readiness, partnering with infrastructure, security, and application teams. The role requires deep networking ...

simple, to the large and complex, we want a life-long partnership, a company our clients and people can rely on. The Role: As Senior Network SecurityEngineer, you will be responsible for the end-to-end design and implementation of security solutions within clients. This will involve … requires absolute delivery working under various conditions, often unsupervised on site with the client. Working as part of a virtual project team the project engineer would be responsible for the delivery and technical assurance of the entire implementation life cycle to deliver the agreed solution seamlessly. This may include ...

Aquis Exchange PLC is seeking a capable Network Engineer to support, shape, optimise, and scale our low-latency trading infrastructure in London. You will join a small, expert Network team working across cloud, on-prem, and exchange platforms—contributing to strategic projects and hands-on engineering. … role requires strong problem-solving, client onboarding experience, and a proactive approach to improving network and security infrastructure. #J-18808-Ljbffr ...

Gujral is seeking a Senior Network Specialist with a strong security focus on Cisco to join its London-based operations. The role emphasizes BAU support, secure design, and scalable solutions for a global environment. The candidate will lead firewall design, IPS deployment, and the migration … refreshed security framework while maintaining high-availability networking across data centres and branch interconnectivity. #J-18808-Ljbffr ...

Networks, Inc. in the United Kingdom seeks a senior Solutions Engineer to articulate F5's product strategy and value for customers, leveraging data centers, virtualization and cloud environments to enable secure, scalable applications. You will deliver technical demonstrations and proof plans, map decision makers, drive the sales process ...