13 of 13 Senior Network Security Engineer Jobs in London

Role Overview Seeking an experienced Senior Network Engineer with deep expertise in multi-vendor networking and security solutions. Required Skills and Experience Proven expertise in F5 LTM, including load balancing concepts, iRules development, and VIP configuration. Strong background with Fortinet security solutions, especially FortiGate firewall and FortiManager configuration and policy deployment. Hands-on experience with … Juniper SRX firewalls and EX switches. Proficiency with Cisco Nexus 7k switches and Cisco ISE for network access control. Solid understanding of routing, switching, and network documentation standards. Excellent problem-solving, communication, and documentation skills. More ❯

Role Overview Seeking an experienced Senior Network Engineer with deep expertise in multi-vendor networking and security solutions. Required Skills and Experience Proven expertise in F5 LTM, including load balancing concepts, iRules development, and VIP configuration. Strong background with Fortinet security solutions, especially FortiGate firewall and FortiManager configuration and policy deployment. Hands-on experience with … Juniper SRX firewalls and EX switches. Proficiency with Cisco Nexus 7k switches and Cisco ISE for network access control. Solid understanding of routing, switching, and network documentation standards. Excellent problem-solving, communication, and documentation skills. More ❯

Job Description Senior Network & Security Engineer – Cloud Migration (Contract) Location: Edinburgh/Hybrid Contract Length: 3 Month Initial Contract Day Rate: Approx £550 - £600 Inside IR35 Start Date: ASAP We’re looking for an experienced Senior Network & Security Engineer to lead a large-scale cloud migration project for a major Banking client. … You'll play a key role in transforming on-prem infrastructure into secure, scalable cloud environments (Azure/AWS). Key Responsibilities: Design and implement network and security solutions across hybrid environments Lead firewall, data center, and cloud migrations Configure and manage Cisco (ASA, Firepower, ISE, ACI), Palo Alto, Checkpoint Optimize routing (BGP, OSPF), Layer 2/… switching , and SD-WAN deployments Ensure cloud and network security compliance with best practices What You Bring: Experience working within Financial Services Strong hands-on experience in network infrastructure & security engineering Proven background in cloud migration projects (Azure/AWS) In-depth knowledge of enterprise firewalls, network protocols, and cloud architecture #J-18808-Ljbffr 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 More ❯

Join to apply for the Senior Network Security Engineer role at OpticoreIT 3 days ago Be among the first 25 applicants Join to apply for the Senior Network Security 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. Opticore IT is currently searching for a Senior Network Security Engineer to join one of our Financial Services clients for designing, implementing, managing and optimising their complex Network and Security Infrastructure. This opportunity … need to visit the client site 2 days a week. What you'll be doing: Configuration of on-prem and cloud WAFs Implement DLP Implement/adjust DDoS Services Network automation and infrastructure as code to help drive forward automation in the firewall infrastructure Using tools like Terraform, Ansible and Git. What you'll bring: Work with firewalls (Palo More ❯

Senior Network Security Engineer – 3-Month Initial Contract (Extension likely) Location: Onsite in West Drayton/Hayes, UK (5 Days per Week) Start: ASAP IR35: Outside IR35 Security Clearance: Will be sponsored for eligible candidates We’re not looking for just another engineer - we’re after a seasoned Network Security expert who … critical infrastructure at its core. If you thrive in a fast-moving, hands-on environment and want to work with cutting-edge tech, this contract is built for you. Senior Network Security Engineer The Tech Stack You’ll Own: Fortinet SD-WAN – Core to the network transformation Fortinet Firewalls – Design and deployment Cisco Nexus – High … performance switching environments Cisco Wi-Fi/LAN Routing & Switching – Solid fundamentals essential Firewall & Security Architecture – Design, configure, secure Configuration Mastery – You’ll write and load full network configs What Makes This Role Different? Security Clearance provided – We’ll sponsor you if eligible. Outside IR35 – Work with freedom and flexibility. Real Possibility of Extension – This is just 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 … 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 … multi-layer switches and routers, including 6500s -CISCO certification, ideally CCNP -CISCO CSM -VLAN segregation -McAfee HIPS, Trend Micro -Centralised authentication service (AAA) -SafeNet Ethernet Encryptor -RADIUS/RSA -Security certification (advantageous) You will also need to an understanding of the following technologies: VLAN segregation. DMZ. VSS. Failover. OSPF. High availability. CISCO. Palo Alto. Juniper. McAfee IPS. SafeNet. Tripwire. 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 … of 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 … 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 More ❯

We optimise and innovate. We turn big ideas into the products, content and services millions of people love. And we do it all right here at Sky. As a Senior Cyber Network Security manager, you will be responsible for designing, implementing and managing the processes, policies and solutions that protect Sky's network data, devices and … to solve complex technical problems, making technical design decisions, and ensuring adherence to best practices You will drive continuous improvement in practices and ways of working to improve efficiency, security and stakeholder outcomes You will support development and drive the execution of delivery roadmaps and projects in the networks security domain. What you'll do - Develops and implement … Network security tools, processes and solutions that meet all legal requirements as well as industry best practices Supports the creation of policies, procedures, standards, guidelines, and controls for protecting the confidentiality, integrity, availability of all organisational data assets. Where required, supports incident response activities including investigation; containment; eradication; recovery; reporting; follow up actions; root cause analysis etc. Works More ❯

Job Description 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 a strong 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. Manage routing and switching protocols to optimize network performance. Analyze operational needs and develop … innovative solutions to strengthen network security. Required: Hands-on experience with enterprise network security solutions. Advanced knowledge of routing and switching protocols. Deep understanding of firewalls. #J-18808-Ljbffr More ❯

Senior Network Security Engineer - Trading Systems, London Client: Client Server Location: London, United Kingdom Job Category: Other - EU work permit required: Yes Job Reference: c6799adff677 Job Views: 4 Posted: 29.06.2025 Expiry Date: 13.08.2025 Job Description: Senior Network Security Engineer London to £150k Do you have expertise with Network Security? You … could be progressing your career in a senior, hands-on role at a global systematic trading firm. As a Senior Network Security Engineer you will take a lead role in operating existing production network security environments such as firewalls, SASE, CASB and Proxy, oversee network and network security changes in … hybrid, multi-cloud and on-prem environments and provide subject matter expertise on network security across engineering teams, implementing automated and scalable security systems, processes and controls. There are many complex technical challenges, you'll be collaborating with a highly talented to solve problems and push what is possible. Location/WFH: You'll join colleagues based More ❯

The job description has a good structure but requires minor revisions for clarity and consistency. Here's an improved version: Senior Network Security Engineer, London Leading global manufacturing company is seeking a Senior Network Security Engineer to join their expanding Network Security Engineering team. The successful candidate will be responsible … for designing and implementing network security solutions that connect on-premises and public cloud environments, with a strong emphasis on Infrastructure-as-Code (IaC) and GitOps methodologies. This is a highly technical role that plays a crucial part in securing the network infrastructure. The position is based in London, requiring presence 5 days a week. Responsibilities: Design … and deploy network security solutions across cloud and on-premises environments. Manage routing and switching protocols to optimize network performance. Analyze operational needs and develop innovative solutions to enhance network security. Requirements: Hands-on experience with enterprise network security solutions. Advanced knowledge of routing and switching protocols. #J-18808-Ljbffr More ❯

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. Opticore IT is currently searching for a Senior Network Security Engineer to support our client in … a critical migration project from a cloud-based proxy solution (Netskope) to an on-premise proxy infrastructure. This role requires deep technical expertise in proxy technologies, a solid security mindset, and familiarity with automation practices. You will join our excellent team, based in the London area, on an initial 6-month contract, inside IR35, with scope to extend . … efficient traffic control. Configuring and managing advanced features such as SSL inspection, re-termination, web sockets, and custom policy creation. Ensuring granular control over web traffic and enforcing enterprise security standards. Providing strategic guidance on multi-product proxy environments, identifying potential compatibility or integration challenges. Supporting automation of policy deployment and configuration tasks where feasible. Collaborating with stakeholders to More ❯