1 to 25 of 33 Network Security Jobs in Central London

Network Security Engineer - £550 per day - Inside IR35 - Remote - 6 Months initial contract. We are seeking an experienced Network Security Engineer Contractor to join a high-performing Security Engineering team supporting enterprise-scale security infrastructure and transformation initiatives. This role is ideal … hands-on engineer with strong expertise across next-generation firewalls, SASE technologies, network security operations, and infrastructure security within complex regulated environments. The successful candidate will operate within a SAFe-aligned Agile delivery environment and contribute to the engineering, administration, and continuous improvement of critical security ...

Network & Security Engineer – Multi-Strat Hedge Fund | London A leading systematic hedge fund is seeking a Network & Security Engineer to join its infrastructure team, supporting and evolving a highly performant, security-conscious trading environment. This is a broad, hands-on role sitting across network engineering, infrastructure, and security, offering exposure to both day-to-day operations and longer-term project work. You’ll play a key role in maintaining and improving the firm’s network and security posture, while contributing to ongoing infrastructure growth driven by continued business expansion. Role ...

Senior Network Security Engineer - Systematic Hedge Fund A high‐growth systematic trading firm is looking for an experienced Network Security Engineer to lead network security design and architecture across a fast‐scaling global environment. This role focuses on defining future‐state architecture, security standards, and design decisions rather than hands‐on delivery. You’ll shape secure network designs to meet evolving business needs and work closely with a dedicated Reliability team who handle implementation and operations. Role Overview From a network security architecture standpoint ...

Senior Infrastructure & Network Engineer (Fortinet Specialist) The Opportunity We are working with a well-established organisation seeking a Senior Infrastructure & Network Engineer to take ownership of their core IT infrastructure and network environment. This is a hands-on role supporting both head office and remote/project … based environments. You’ll play a key role in ensuring the stability, security, and ongoing improvement of systems, with a strong focus on network security and Fortinet technologies. The Role Reporting to the IT Director, you will be responsible for the day-to-day management, security ...

Title: Network Security Engineer Salary: Up to £80,000 (Depending on experience) Location: Central London (3x per week) Overview We’re looking for a Network & Security Engineer to join a high-performing team within a global banking environment. This is a projects-led role with strong … exposure to modern network and security technologies, alongside the opportunity to take full ownership of solutions from design through to delivery. You’ll be working in a collaborative environment with experienced industry professionals, where autonomy is encouraged—no micromanagement, just trust in your expertise. What ...

Security Consultant Public Sector & Defence Location: Flexible across the UK (with client travel) Salary: Competitive + Excellent Benefits Package Clearance: Eligibility for SC Clearance required A leading global technology and consulting organisation is looking for a Security Consultant to join its growing Public Sector & Defence practice, supporting some … most critical and complex digital transformation programmes. This is an opportunity to work alongside industry-leading security specialists on large-scale projects across Healthcare, Central Government, Defence and wider Public Sector environments. Youll play a key role in designing secure enterprise solutions, advising on cyber risk, and helping shape ...

Network Security Engineer - £550 per day - Inside IR35 - Remote - 6 Months initial contract. We are seeking an experienced Network Security Engineer Contractor to join a high-performing Security Engineering team supporting enterprise-scale security infrastructure and transformation initiatives. This role is ideal ...

Security Consultant – Public Sector & Defence Location: UK-wide (flexible with client travel) Salary: £45,000 – £66,000 (outside London) | £50,000 – £70,000 (London) + package Clearance: Must be eligible for SC (5 years continuous UK history + sole British nationality) About the Role This is a security consulting role focused on large-scale transformation programmes across UK government, defence, and health. You’ll be embedded in complex environments where security is not theoretical, it directly impacts national infrastructure and public services. You’re not just reviewing controls. You’re shaping how secure systems are designed ...

Senior Network Engineer (Cisco ISE/Wireless/Palo Alto/Fortigate) 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 to join the team … 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. - Configure and optimise Cisco ...

Network Engineer Rate - £500 (A day) Duration - 6 Months (Initially) Location - SW London IR35 - Outside Role Overview We are looking for a Senior Network Engineer to support a network refresh and transformation programme within a university environment. This role is hands-on and will involve working closely … robust, high-performing wired and wireless services that meet the needs of students, faculty, and staff. Key Responsibilities Support the design and implementation of network infrastructure as part of the Cisco to Extreme Networks migration. Configure and deploy wired and wireless network solutions across campus environments. Work collaboratively ...

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. As a Principal Network Architect , you will be a trusted advisor, technical … authority, and strategic partner to our clients. You will lead the design of complex, secure, and scalable network architectures, translating business requirements into robust technical solutions. This role combines technical leadership, solution architecture, consultancy, and pre-sales engagement, requiring a strong ability to operate at both strategic and hands ...

Security Consultant – Public Sector & Defence Salary: £60,000 - £70,000 Location: London (hybrid) We are a leading provider of data engineering and cybersecurity services, working at the forefront of innovation to solve some of the most complex security challenges across the UK public sector, Defence, healthcare, and central … delivering cutting-edge solutions that drive real-world impact. You’ll work alongside industry experts, using the latest technologies to help organisations strengthen their security posture and navigate large-scale digital transformation programmes. The Role As a Security Consultant, you will play a key role in designing, advising ...

Network Automation Engineer City of London (Hybrid) | Permanent | Up to £80,000 + Bonus & Benefits Were working with a leading financial services organisation looking to hire a Network Automation Engineer to join their growing infrastructure team. This is a fantastic opportunity to play a key role in modernising … automating a large-scale, global enterprise network, working at the intersection of networking and DevOps. The Role Youll be responsible for driving network automation initiatives, improving efficiency, and supporting the design and delivery of scalable, resilient infrastructure across a complex global environment. Key Responsibilities Designing and implementing network ...

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 ...

Cloud Security Engineer/GCP Security Expert Contract, 6 months initially (very likely extensions) Inside IR35 Remote (UK) £(Apply online only) per day We're working with a client on an exciting cloud-first transformation and are looking for a GCP Cloud Security Engineer to play … role in securing the migration of workloads into Google Cloud. This is an excellent opportunity to join a forward-thinking environment where security is central to cloud adoption. The Role You will be responsible for designing, implementing, and maintaining security controls across a growing GCP estate, ensuring applications ...

Cyber Security Lead London (City) | Financial FinTech £110,000 + package | Hybrid (WFH/Office blend) Overview You will need to be UK based living within a commutable distance from London We are seeking a Cyber Security Lead/Senior Security Engineer to take ownership … hands-on security of a high-performance trading environment within a regulated FinTech organisation. This is a critical role combining technical security operations with regulatory compliance, ensuring resilience across infrastructure, networks, and systems. Youll work closely with Engineering, DevOps, IT, and Infrastructure teams, playing a key role ...

innovation and technical ownership. This role is not a traditional SOC position, you’ll focus on building high-impact detection capabilities , shaping how security protects sensitive genomic and AI-driven data at scale. This role offers hybrid/remote working options, a salary range … incident detection Collaborate with an MSP SOC to maintain and tune the detection catalogue Build automated reporting dashboards using Microsoft Sentinel workbooks Support security initiatives including ISO 27001 activities and KQL-based tasks Ensure monitoring coverage across cloud platforms, SaaS apps, and internal systems Contribute to documentation of processes ...

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 ...

Azure Platform Network Engineer Location: City of London (Hybrid) Contract: 3-6 months Rate: £680 per day (Umbrella - Inside IR35) Overview We are seeking an experienced Azure Platform Network Engineer to support a high-profile programme within a complex enterprise environment. This role focuses on designing, implementing … secure AI and platform workloads. This is a hands-on engineering role , ideal for someone with deep expertise in Azure networking, private connectivity, and network security operating at enterprise scale. Key Responsibilities Design and implement Azure Virtual Network (VNet) architectures , including hub-and-spoke and VNet peering ...

Security Consultant London (Flexible/Hybrid Working) £45,000 – £70,000 + Package (Location Dependent) The Opportunity We’re hiring Security Consultants to join a growing team delivering impactful work across the UK health and public sector landscape. This is an opportunity to work on high-profile, mission … designing and advising on secure systems across large-scale programmes. This includes: Designing secure architectures across complex IT and transformation projects Advising on security strategy, risk, and compliance across public sector environments Identifying vulnerabilities and recommending pragmatic, risk-based solutions Supporting clients with regulatory frameworks (e.g. ISO 27001, NIST ...

SOAR) Location: London (Onsite – 5 days per week) Salary: £65,000 base + package NOTE: Candidates for this opportunity must be eligible for UK Security Clearance. We are seeking a skilled SOC Engineer with a strong focus on SIEM and SOAR technologies to join a high-performing security operations environment. This role is centred on the configuration, optimisation, and integration of enterprise-scale security platforms, with a particular emphasis on Splunk Enterprise Security and Splunk SOAR. You will play a critical role in ensuring these platforms are stable, scalable, and effectively supporting detection engineering, automation ...

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 ...

Sector: Public Sector/Government Job title: Security Architect Type: Contractor Location: London (Hybrid) Duration: 6 months Vetting: SC/DV or eligibility required We’re looking for an experienced Security Architect to provide hands‐on security leadership on a large‐scale, cloud‐first government transformation programme. … define and own the target security architecture, guide technical decision‐making, and ensure secure‐by‐design delivery across multiple workstreams. Working with senior stakeholders, assurance bodies and multi‐supplier teams, you’ll help deliver a modern, secure and interoperable cloud solution. Key responsibilities Owning the target security architecture ...

months initially, view to extend Location: London 1 day per week, 4 days remote (open to remote) Overview We are looking for a senior Network Architect for an engagement with a major financial services client. You will be an expert-level practitioner who is equally comfortable working at depth … technically and presenting findings to senior executives. Both skills are essential for this engagement. What the Role Involves Assess and document the current network estate across LAN, WAN, and Data Centre environments Identify fragmentation, technical debt, and architectural risk within the existing environment Produce a current state assessment ...