1 to 25 of 29 Network Security Jobs in the City of London

Network Security Engineer East London | Hybrid 12-month fixed-term contract | £60,000 - £70,000 Potential to convert to permanent A purpose-led organisation based in East London is looking to appoint a Network Security Engineer on a 12-month fixed-term contract. This … opportunity to join a business with a strong social impact, supporting the security and resilience of critical technology services. This role would suit someone with a strong networking foundation and proven hands-on security experience , particularly across technical security assessments, operational monitoring, vulnerability triage, and security ...

Lead Security Engineer – Proprietary Trading Firm – London (On-Site) – Up to £140,000 Base Salary + 20% Bonus A leading global trading and investment firm is seeking a Lead Security Engineer to play a pivotal role in building and shaping its security practice. This is a senior … hands-on role with genuine influence across network, cyber, and cloud security, combining deep technical expertise with strategic direction. This position is ideal for someone who wants to move beyond pure delivery and take ownership of security architecture, tooling decisions, and long-term IT security strategy ...

Cyber Security Engineer – London (Hybrid) This is a standout opportunity to help shape and mature the cyber security capability of a leading financial‐services organisation. They’re investing heavily in modern security practices, and this role sits right at the centre of designing how security … embedded and continuously improved across a Microsoft‐focused technology estate. You’ll be hands‐on with the engineering, tooling and architecture that underpin their security posture, while also influencing how secure‐by‐design thinking is applied to major technology decisions. Working closely with the wider IT function ...

Title: Senior Network & Security Engineer Presales & Delivery Location: South East England (Home Based with client visits in and around London and South East). Salary: Up to £90,000 depending on level of experience, plus bonus and good benefits package. The Company Our client is an IT Solutions … years, they have a team of 60 and typically see yearly revenues more than £30M+. They have some fantastic case studies, delivering enormous, converged network and infrastructure projects, trusted experts across smart buildings, connectivity, networks and cyber security. Technology Partners Cisco/Meraki Palo Alto Fortinet Juniper Aruba/ ...

title: Network Security Engineer Client: Elite Tech Firm Salary: Up to £180k + Industry Leading Bonus Experience Level: 5+ years of Experience Location: London (Hybrid) Skills: Multicast, Palo Alto, Fortinet, Python, CCIE or Masters ideal My client are looking for a talented Network Security Engineer … join their team. You will join a globally distributed team of Engineers providing services for their Network stack. Brushing shoulders with a wide array of experienced Engineers, this is an excellent opportunity to dramatically further your knowledge technically, in a technically focused company. This firm have set numerous world ...

Senior Security Analyst/Security Engineer London (City) | £80,000–£90,000 | Permanent If you’re the kind of security engineer who can spot an active threat, contain it calmly, and then harden the environment so it doesn’t happen again — this role is built for you.We … hiring a hands-on Senior Security Analyst/Security Engineer to strengthen a Microsoft-centric security posture across detection, response, tooling, and infrastructure hardening. Not a one-lane SOC role. Not governance-heavy. This role blends incident response with security engineering and hardening and ideal ...

Network Architect - Fortigate A highly experienced Network Architect is required to join a fast-paced environment, with a strong focus on Fortinet technologies and enterprise firewall operations. The ideal candidate will have hands-on experience across FortiGate, FortiManager, FortiAnalyzer, FortiAP, FortiSwitch, FortiSASE, and FortiConverter, with the ability … design, deploy, and support secure network solutions at scale. This role involves leading firewall migrations, security policy implementation, SD-WAN delivery, and network security improvements across complex multi-vendor environments. Strong experience with enterprise security design, troubleshooting, and documentation is essential, along with a proactive ...

title: Network Security Engineer Client: Elite FinTech Salary: £100.000-£160,000 + Bonus Location: London Skills: Palo Alto, Fortinet, Cisco, Arista, Python, Ansible, Multicast The role: My client are looking for a Network Engineer with strong experience in Security to join their team. Responsibilities: Designing … deploying Security solutions (particularly around Palo Alto and Fortinet technologies) Leading projects Providing L3 support where required Identifying automation opportunities Utilising a solution based approach for complex problems Applying continuous improvement principles Core skills required: Palo Alto Fortinet Cisco/Arista Python/Ansible for Network Automation Some ...

Greetings We are Hiring Cyber Security Analyst in London/Norwich London/Norwich Hybrid Model This demand has 4 requirements open Purpose of Role Our CISO function comprises of Cyber Defence Centre, Business Resilience, Privacy & Information Management, Strategy & Operating Office and Security Design, Innovation & Enablement. The Security Engineer is a member of the Security Engineering team within the Cyber Defence Centre, and reports to the Security Engineering Manager. The purpose of this role is to provide security related technical and functional support for DLG security tooling and services, overseeing the delivery ...

have a current opportunity for a Head of Azure Platform Security on a permanent basis. The position will be based in London. For further information about this position please apply. ETrading client operates infrastructure that is genuinely critical - trading systems processing billions in daily notional value, client-facing platforms … serving institutional counterparties, and cloud environments holding sensitive market and counterparty data. This role is for a cloud security architect who has never stopped being an engineer: someone who can model a threat, design the control, write the detection rule, and deploy the fix - all in the same day. ...

Technical Cyber Security Engineer/Architect (Microsoft Sentinel & M365 Defender) Contract | Inside IR35 | £600 per day 2 days per week on-site | London or Manchester SC Clearance required - ESSENTIAL A large national organisation is seeking a Technical Cyber Security Engineer/Architect (Microsoft Sentinel & M365 Defender) to join … Cyber and Infrastructure team, supporting the SOC (Security Operations Centre), on a contract basis. This is a key role focused on strengthening cyber resilience across enterprise technology, helping to identify, defend against, and recover from evolving threats across cloud, network, and end-user environments. The role You will ...

Role: Network Infrastructure Engineer Location: London Salary: £200k - £400k Total Compensation About the Role: We’re seeking a Network Infrastructure Engineer to design, build, and maintain global network systems. You’ll be responsible for infrastructure reliability, secure connectivity, and hybrid data centre and cloud environments. Responsibilities Design … configure, and maintain network and infrastructure services across global sites. Implement and support secure connectivity solutions, including firewalls, VPNs, and network segmentation. Collaborate with security and infrastructure teams to enhance system reliability and performance. Diagnose and resolve complex issues related to routing, switching, latency, and application delivery. ...

prestigious UK-based organisation with a rich history spanning over 500 years. This role involves providing deep technical expertise in Microsoft Sentinel, Azure security infrastructure, networking, and security tooling. The successful candidate will play a crucial role in stabilising, improving, and standardising security operations. … role: Design, implement, and support Microsoft Sentinel infrastructure, including workspaces, data connectors, analytics rules, automation, and workbooks. Engineer and maintain Azure security controls across core services, supporting secure cloud operations at enterprise scale. Implement, enhance, and maintain security tooling to improve detection, monitoring, and response capabilities. Design, deliver ...

Title: Senior Network & Security Engineer Presales & Delivery Location: South East England (Home Based with client visits in and around London and South East). Salary: Up to £90,000 depending on level of experience, plus bonus and good benefits package. The Company Our client is an IT Solutions ...

prestigious UK-based organisation with a rich history spanning over 500 years. This role involves providing deep technical expertise in Microsoft Sentinel, Azure security infrastructure, networking, and security tooling. The successful candidate will play a crucial role in stabilising, improving, and standardising security operations. … role: Design, implement, and support Microsoft Sentinel infrastructure, including workspaces, data connectors, analytics rules, automation, and workbooks. Engineer and maintain Azure security controls across core services, supporting secure cloud operations at enterprise scale. Implement, enhance, and maintain security tooling to improve detection, monitoring, and response capabilities. Design, deliver ...

have a current opportunity for a Head of Azure Platform Security on a permanent basis. The position will be based in London. For further information about this position please apply. Requirements - Hands-on Azure cloud security architecture and implementation - Defender for Cloud, Policy-as-Code, RBAC, PIM, private … endpoints, and secure landing zone design; AWS security experience also considered - Network security engineering: firewall policy design and lifecycle management, micro-segmentation, NSG/UDR/NVA architecture, hub-spoke topology, and perimeter defence for hybrid environments - WAF design, deployment, and operational tuning - Cloudflare, Azure Application Gateway ...

Network Architect Contract Opportunity - London (1 day per month) - £700 - £725 Inside IR35 Morson Edge have partnered with a large retail client undergoing significant transformation, to recruit an experienced Network Architect to play a key role in shaping and modernising their enterprise network landscape. This … high-impact role where you'll act as the go-to Subject Matter Expert for network technologies, driving architecture, influencing strategy, and supporting delivery across a vast and complex estate. You'll be at the centre of large-scale initiatives, including cloud migration, software-defined networking, and enterprise infrastructure ...

Senior Network Engineer – Arista/Fortinet Location: London Salary: 75-95k€ For one of our clients we’re looking for a skilled Senior Network Engineer to help build and maintain resilient, high-performance network infrastructure that supports critical real-time environments. This position is ideal … engineers with deep routing expertise, strong architectural insights, and experience delivering robust network solutions in demanding enterprise settings. What you’ll do Translate designs into detailed configurations and deployment plans, working closely with architecture leadership to ensure feasibility and operational excellence. Lead implementation of core network infrastructure projects ...

landing zone readiness, cutover planning, and decommissioning. Own core Azure networking design and operations, including vNETs/subnets, routing, peering, private endpoints, NSGs, and network security patterns. Manage hybrid connectivity concepts such as ExpressRoute, vWAN, VPN gateways, and integration with on-prem network services. Partner with network/security teams to implement segmentation and secure access to applications and data. Implement and maintain Azure security and governance controls (Policy/initiative, RBAC, logging/monitoring, and automated compliance guardrails). Maintain working knowledge and provide escalation support of VMware vSphere environment, Windows Servers, Active ...

technology. The role is crucial to FirstBank’s business continuity and operational resilience plan. The role will advise the CTO on technology and security implementations, process reengineering and cybersecurity best practices and solutioning that will enhance current practices and assist the organisation to perform efficiently and remain secure. … provide technical assistance to users on a range of systems and business applications. Support and manage banking applications, servers, networks, voice systems, and security devices Ensure operational integrity and uptime across all IT services Monitor and analyse system performance, proactively resolving issues Maintain and enhance IT infrastructure to support ...

Skills: Cisco Routing and Switching Router and switches: Cisco NX-OS & IOS-XE, Dell SonicOS Firewall: Fortinet, Juniper, Cisco Project experience preferably in migration Network infrastructure and application flow through firewalled environment Demonstrate an expert understanding of networking protocols including TCP/IP and Ethernet protocols Expert design knowledge … architecture Understanding of IGP & BGP IP Routing Protocol Experience on configuring Cisco NX & IOS-XE platform, DellSonicOS Deep expertise, understanding and knowledge of Infrastructure Network and Security Routing and Switching, Firewalls Strong hands-on experience on Cisco Network Hardware like Cisco NX-OS switches, IOS-XE switches ...

will focus on hands-on support and projects across on-prem and cloud platforms. Responsibilities will include: Designingand deliver enterprise-scale firewall solutions Lead security and network modernisation projects Research and introduce new security technologies Provide Tier 3 support for complex issues Document designs and share knowledge … engineers To be considered suitable you will need the following skills/experience: Strong backgroundwith Palo Alto firewalls (Panorama, NGFW, Prisma Access) Strong enterprise network experience Palo Altocertification - PCNSE Good understanding of network security ...

engineering role within a globally recognised financial services environment, focused on delivering a large-scale Data Centre Transformation programme. You’ll join a core network team responsible for modernising critical infrastructure following a major separation programme, giving you exposure to end-to-end network ownership across design, build … wants to move beyond BAU and be part of meaningful, business-critical change, with strong visibility and ownership. Responsibilities: • Design, build, and implement enterprise network solutions • Deliver across a major data centre transformation programme • Support network migrations, optimisation, and traffic engineering • Decommission legacy infrastructure and consolidate services • Configure ...

Cloud Engineer (DV Cleared) About the Role We are seeking a skilled Cloud Engineer to support mission-critical national security programmes. This role is ideal for someone with strong experience in automating software delivery pipelines within highly scalable, secure environments, particularly those leveraging open-source technologies. … cloud-native systems Collaborate within a multi-disciplinary Agile/Scrum team Support continuous integration and delivery (CI/CD) pipelines Implement and maintain security best practices across cloud platforms Core Technologies & Experience Cloud platforms (preferably AWS) Infrastructure as Code (e.g. CloudFormation) Containerisation and orchestration (Docker, Kubernetes, Amazon ...

Skills: Cisco Routing and Switching Router and switches: Cisco NX-OS & IOS-XE, Dell SonicOS Firewall: Fortinet, Juniper, Cisco Project experience preferably in migration Network infrastructure and application flow through firewalled environment Demonstrate an expert understanding of networking protocols including TCP/IP and Ethernet protocols Expert design knowledge ...