76 to 100 of 341 Network Security Jobs in London

Cyber Defence Network Engineer

Location
City Of London, England, United Kingdom
potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career. Job Description: Network Engineer, Cyber Defence Centre Alternatively, Grant Thornton At Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering positive … industry looks like, and what you want from your career. About us The Grant Thornton Cyber Defence Centre is an award-winning* managed security services provider operating at the forefront of cyber security, using industry-leading technologies to protect and support our clients. Alongside our SOC capability ...

Network Engineer

Location
Greater London, England, United Kingdom
major exchanges, order-flow management via screen, voice and DMA, plus award-winning data, insights, and analytics. Within the Technology area, the Network Team is responsible for the overall IT network of the company. The Network Team is central to the success of the organisation and works … with the global IT teams in Asia, Europe and North America to monitor and maintain the network systems to ensure maximum uptime and service delivery to the business. This is an excellent opportunity to work within a dynamic and shifting network landscape, working across a multitude of technologies ...

DV Cleared Network Engineer

Location
Greater London, England, United Kingdom
Posted on 08 September 2026 Our client is looking for a DV cleared Network Engineer to join their IP management team working on critical national infrastructure in London. You'll need solid hands‐on experience with enterprise routing, LAN switching, and network security technologies. Working Patterns … location – Fully on site Key responsibilities Design, build, test, validate, and maintain all network infrastructure components. Implement new and enhanced network technologies aligned to customer strategic direction. Maintain standards for global network infrastructure including wireless, LAN, and SD-WAN. Manage installation, testing, and setup of physical ...

Network Engineer Central London, Hybrid - £65,000

Hiring Organisation
Ashdown Group
Location
South East London, London, United Kingdom
Employment Type
Permanent
Salary
£65,000
Network Engineer Central London, Hybrid - £65,000 We are looking for an experienced Network Engineer with strong Fortinet expertise to join our growing network infrastructure team. You will be responsible for designing, implementing, supporting and maintaining secure and resilient network environments, with a particular focus … Fortinet technologies. Key responsibilities of this Network Engineer role will include: Configure, manage and troubleshoot FortiGate firewalls and Fortinet security solutions. Manage firewall policies, NAT, VPNs, routing and security rules. Support LAN/WAN, switching, routing and network security infrastructure. Monitor network performance, availability ...

Cyber Defence Network Engineer

Hiring Organisation
Grant Thornton
Location
London, UK
Employment Type
Full-time
potential. And with that comes the opportunity to help redefine what our industry looks like, and what you want from your career. Job Description: Network Engineer, Cyber Defence CentreAlternatively, Grant ThorntonAt Grant Thornton we do things differently - looking to the future, driving ambitious growth and pioneering positive change … what our industry looks like, and what you want from your career. About usThe Grant Thornton Cyber Defence Centre is an award-winning* managed security services provider operating at the forefront of cyber security, using industry-leading technologies to protect and support our clients. Alongside our SOC capability ...

Senior Cloud Security Engineer (GCP) - Engine by Starling

Location
Greater London, England, United Kingdom
able to interact and collaborate in person. Engineering at Engine by Starling —https://enginebystarling.com/careers/engineering/As a Security Engineer at Engine, you'll be working on helping to keep our infrastructure secure and compliant and our staff safe and productive. … working on projects covering identity and access management, cloud and network security, vulnerability management, security monitoring, security hardening, compliance reviews, and more. It's a very varied role with lots of close interaction with the infrastructure, security engineering, cross-cutting and compliance teams. ...

Senior Network and Security Engineer

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
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 work across … operations, supporting critical trading platforms in a fast-paced, regulated environment. Key Responsibilities Design, implement and maintain CMC Markets global LAN, WAN and cloud network infrastructure Deliver network engineering and design for new initiatives, alongside ongoing BAU growth and optimisation Monitor network performance, capacity and availability, providing ...

Network & Security Engineer

Location
Greater London, England, United Kingdom
commentators can engage with fans on a deeper level, using our stories and insights. Responsibilities: We are looking for a motivated and hands‐on Network & Security Engineer to join our network team. In this role, you will be responsible for supporting day-to-day network operations … maintenance across our enterprise and data center environments. Working in close collaboration with senior engineers, you will contribute to technical designs, maintain perimeter security and traffic management, and assist with network automation initiatives. Technical Design & Documentation: Collaborate with more senior engineers to analyze technical requirements; contribute to design ...

Network Engineer

Location
Greater London, England, United Kingdom
Summary The Network Engineer is responsible for designing, implementing, maintaining, and supporting the IT network infrastructure of Spirit IT Solutions. This role ensures the availability, performance, and security of the company’s networks and works closely with other IT teams to meet business objectives. Key Responsibilities Network Design and Implementation: Design and deploy functional networks, including LAN, WAN, and wireless systems. Configure and install network hardware (e.g., routers, switches, firewalls). Manage network-related projects to meet technical and business requirements. Network Maintenance and Monitoring: Monitor network performance and ensure high levels ...

Technical Operations Manager

Location
City Of London, England, United Kingdom
Technical Operations Manager We are seeking a Technical Operations Manager to own and mature security-focused TechOps capabilities globally. As a regulated financial institution operating across multiple jurisdictions, security, resilience, and operational excellence are fundamental to our technology operations. The TechOps function plays a critical role in protecting … exceptional people who share our ambition to transform the future of global payments. The Role This role is designed for a blue‐team security professional with strong hands‐on experience operating modern security controls at scale. You will hold global accountability for the secure operation of key TechOps ...

Manager, IT Security Engineering

Hiring Organisation
Gilead Sciences Inc
Location
Greater London, United Kingdom
Employment Type
Full Time
environment where every employee feels included, developed and empowered to fulfil their aspirations. Join Gilead and help create possible, together. Job Description The Platform Security Engineer is a key member of Gilead's Security, Risk and Compliance (SRC) team and works closely with cross-functional project teams … pursue project end goals. The candidate will work with platform security technologies in multiple capacities. These include but are not limited to leading invest and sustainment projects that seek to enhance existing or implement new capabilities, providing high level support for security solutions, partnering with IT and business ...

Senior Security Engineer

Hiring Organisation
Cohere
Location
London, UK
Employment Type
Full-time
Cohere is the leading security-first enterprise AI company. We build cutting-edge foundation AI models and end-to-end products that are designed to solve real-world business problems. We're training and deploying frontier models for enterprises who are building AI systems. We believe that our work … company headquartered in Toronto with key offices in London, New York City, San Francisco, Montreal, Paris, Berlin and Seoul. Join us! As a Senior Security Engineer you will: Serve as trusted advisor to team's leadership and partner teams by clearly articulating business risks associated with security issuesLead ...

Security Engineering Manager

Location
Greater London, England, United Kingdom
Title Security Engineering Manager Job Description Role Overview As a Security Engineering Manager, you will play a critical role in executing security initiatives that protect our systems, data, and infrastructure. We’re looking for a seasoned generalist—someone who has touched most areas of cybersecurity … adapt quickly to new challenges. You’ll work closely with IT, engineering, and risk teams to implement and maintain security controls, evaluate new designs, and drive continuous improvement across our security posture. You will also lead the practical application of artificial intelligence (AI) to security use cases ...

Senior Network Infrastructure Engineer Private Swiss Bank

Hiring Organisation
Silver Birch Rec Ltd T/A Etech Partners
Location
London, United Kingdom
Employment Type
Permanent
Salary
£85,000
Senior Network Infrastructure Engineer Private Swiss Bank We are partnering with a leading Private Swiss Bank to recruit a Senior Network Infrastructure Engineer to join its established technology team. The Role Design, support and manage enterprise LAN, WAN, SD-WAN and data centre networks Take ownership … banks on-premise network platforms Support and troubleshoot Aruba enterprise networking, including switching and resilient network design Manage enterprise firewalls including Palo Alto and Check Point Support enterprise Wi-Fi, NAC, 802.1X and network segmentation Manage routing and switching technologies including BGP, OSPF, ECMP and Layer ...

Network Security Lead

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£70000 - £80000/annum Negotiable
Role: Network Security Lead (Permanent) Location: London, UK (Hybrid - 2 days on-site) Clearance Requirement: BPSS Eligible We are hiring an L3 Subject Matter Expert to lead network security operations for a global enterprise. If you have 8+ years of experience managing complex enterprise networks … want to hear from you. Key Requirements: Routing & Switching: Mandatory deep expertise in Cisco Data Centre and Branch Routers/Switches (Nexus). Security & Firewalls: Strong hands-on experience with Palo Alto, FortiGate, Cisco FTD, and Cisco ISE (NAC). Network Protocols: Advanced knowledge of BGP, OSPF, VXLAN ...

FullStack Infrastructure Engineer

Location
Greater London, England, United Kingdom
join a global financial services technology team in London. This is a hands‐on contract role spanning infrastructure design, IoT/OT systems, network security, automation, and stakeholder engagement across globally distributed teams. You will lead and support PoC, RFP, and RFE initiatives across diverse platforms, working closely … with Networks, SecDesign, Proxy, Risk, and Windows engineering teams — including engaging directly with external vendors to validate products against firm security policies. A key element involves IoT systems including Building Management Systems (BMS), lighting controls, occupancy sensors, and air quality monitoring. You should be comfortable operating across multiple device ...

Network & Infrastructure Manager

Location
Greater London, England, United Kingdom
people in AI can say this. Every role here, whatever the team, plugs into that. Here’s what this particular role covers. About our Network & Infrastructure Teams Our team owns the network and site infrastructure that keeps Wayve connected across offices, garages, labs and test facilities … countries. We’re a growing team of seven engineers across the UK, US, Japan and Israel, delivering a multi-year network upgrade and supporting new sites as Wayve expands. As Network & Infrastructure Engineering Manager, you’ll lead the team, partnering with a staff-level network engineer ...

Senior Network Engineer

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day
Senior Network Engineer 4-Month contract - Inside IR35 - up to £550 per day London based - hybrid working - 1-2 days a week onsite Finance sector Responsible for network design input into infrastructure, security and commercial projects. Maintenance and ownership of technology roadmaps with responsibility for ensuring network … Business. Experience of working in multi-vendor environments including but not restricted to Cisco, F5 and Palo Alto. Overview Develops new and modifies existing network platform capabilities to support business processes by mapping network platform/infrastructure components, identifying dependencies across systems/platforms and managing network ...

Cyber Security Engineer – 11919JS-HERT

Location
Greater London, England, United Kingdom
11919JS-HERT Market related Cyber Security Engineer London | Hybrid (3 days on-site per week) | Permanent | Excellent Benefits Package Our client are looking for an experienced Cyber Security Engineer to join their team on a permanent basis. You’ll help with strengthening the security of a broad … technology environment and help embed effective security practices across a growing organisation.This role covers identity and access management, endpoint security, cloud platforms, business applications, vulnerability management and incident response. You will work closely with IT operations, development and platform teams, as well as selected external security providers. ...

Senior Network Security Lead – M&A Advisory

Location
Greater London, England, United Kingdom
London seeks a Senior Network Security Consultant to lead network security elements across engagements with private equity and corporate clients. You will assess network posture, identify exposures and articulate risks to investors and executives. The role covers on-premises, cloud and hybrid environments, with hands ...

Information Security Manager - 12 month FTC

Location
Greater London, England, United Kingdom
purchasing decisions. We have an exciting strategy to serve an even wider section of the market, with innovative products and services. As the Information Security Manager, you will lead Hometrack’s information security framework, ensuring our data, technology, and operational practices meet the rigorous standards expected … partners. You will be accountable for the ownership and maintenance of our ISO 27001 and Cyber Essentials certifications, driving continuous improvement in our overall security posture. This is a visible, high-impact role requiring both strategic ownership and hands-on governance to ensure security acts as a trusted ...

Senior IT Project Manager - OT Security & Secure File Transfer in Pharma

Location
Greater London, England, United Kingdom
Senior IT Project Manager - OT Security & Secure File Transfer in Pharma Full-time Transforming Life Science Consulting Worldwide. Fusion Consulting is a globally leading Business and IT boutique consultancy specialized in the Life Sciences industry, partnering with leading companies in pharma, healthcare, and animal health. With over 450 employees … implement game-changing solutions that build lasting relationships with our clients. The IT Project Manager is responsible for leading the delivery of Infrastructure Security projects within a global pharmaceutical environment, with primary focus on OT Security platforms and Secure File Transfer solutions. The role oversees the implementation, enhancement ...

Senior Network Engineer - London - £600-650 per day (PAYE)

Hiring Organisation
McCabe & Barton
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £600 to £650 per day PAYE (inside IR35)
Senior Network Engineer - London - £600-650 per day (PAYE) Cisco, Cloud & Network Automation - 12 month contract 5 days per week in office Leading Investment Manager is seeking a highly skilled Senior Network Engineer to support the design, implementation, scalability, and reliability of our enterprise network infrastructure. … This role will play a key part in network modernization initiatives, connecting colocation data centers with multi-cloud environments, and contributing deep technical expertise across network design, operations, and incident response. The ideal candidate brings strong experience in enterprise networking, hybrid-cloud connectivity, automation, and performance optimization, along ...

Security Architect

Location
Greater London, England, United Kingdom
Security Architect page is loaded## Security Architectlocations: Homeworker - UK: London: Belfast: Birminghamtime type: Full timeposted on: Posted Todayjob requisition id: JR\_17093# Join Kainos and Shape the FutureAt Kainos, we’re problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether … that celebrates creativity and collaboration.**Join us and be part of something bigger.**MAIN PURPOSE OF THE ROLE & RESPONSIBILITIES IN THE BUSINESS:As a Security Architect (Consultant) in Kainos, you’ll be responsible for the design and application of good security practices in the platforms and services ...

Application Security Engineer, Amazon Application Security

Hiring Organisation
Amazon
Location
London, England, United Kingdom
Amazon, security is central to maintaining customer trust and delivering delightful customer experiences. Our organization is responsible for creating and maintaining a high bar for security across all of Amazon’s products and services. We offer talented security professionals the chance to accelerate their careers with opportunities … faster, better, and more cost-effective. However, no matter what we’re building – from websites to web services, AR to AI, drones to devices – security is always our top priority. The Amazon Application Security team focuses on working with our builders to provide experiences that our customers ...