176 to 200 of 241 Network Security Jobs in London

Temporary Field Operations Engineer - 6 Month Duration

Hiring Organisation
Love Success Recruitment
Location
South Croydon, Surrey, United Kingdom
Employment Type
Full-Time
Salary
£161.00 - £173.00 per day
environments. The Role You'll be the technical backbone of field operations-deploying, maintaining, and optimising IT infrastructure across sites nationwide. Working closely with network engineers, contractors, and local teams, you'll ensure equipment is installed correctly, systems stay stable, and users receive high-quality support. Key Responsibilities Deploy … install, and maintain IT and network infrastructure across multiple locations, including switches, firewalls, servers, structured cabling and workstation environments. Rack, cable, configure and troubleshoot network and endpoint hardware, ensuring secure, reliable, and high-performing services. Support firewall implementations, switch deployments, network connectivity and workstation rollouts in collaboration ...

Senior Security Engineer (IT/OT)

Hiring Organisation
Oscar Associates (UK) Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
+ Very Competitive package A well known client of ours with a growing international presence is looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep its stores, distribution centres and operational sites running around the clock. This is a rare hybrid … enterprise IT security and Operational Technology - you'll sit at the point where corporate infrastructure meets the industrial systems that the business physically depends on. It's a senior, hands-on engineering position with real influence: you'll set technical direction, raise engineering standards and build out the organisation ...

Senior Security Engineer (IT/OT)

Hiring Organisation
Oscar Technology
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
+ Very Competitive package A well known client of ours with a growing international presence is looking for a Senior IT/OT Cyber Security Engineer to protect the systems that keep its stores, distribution centres and operational sites running around the clock. This is a rare hybrid … enterprise IT security and Operational Technology - you'll sit at the point where corporate infrastructure meets the industrial systems that the business physically depends on. It's a senior, hands-on engineering position with real influence: you'll set technical direction, raise engineering standards and build out the organisation ...

Cyber Response & Recovery Manager - German Speaker

Hiring Organisation
KPMG
Location
London, UK
Employment Type
Full-time
huge amount of experience in a short space of time and will also have the opportunity to be put through a range of security certifications. In this role we are looking for a person who can demonstrate strong technical background, experience in incident response and digital forensics … improve both your management and technical skills. Strong technical competency and experience of managing a range of complex cyber incidents; from ransomware to advanced network intrusions is a pre-requisite. Our clients expect that cyber-incidents will be tackled with urgency, therefore, there is an expectation that you will ...

Network Engineer

Hiring Organisation
Frontier Resourcing Ltd
Location
Harlow, London, United Kingdom
Employment Type
Contract
Contract Rate
Day Rate
Network Engineer (Cisco ISE & Wireless) Contract | Hybrid | Defence Sector Our client, a leading UK defence technology organisation, is seeking an experienced Network Engineer to support the design, implementation and optimisation of secure enterprise network infrastructure. This is a hands-on engineering role focused on Cisco Identity Services … Engine (ISE) , Cisco Catalyst 9800 Wireless LAN Controllers , secure network access and enterprise wireless technologies. You'll work on critical infrastructure projects, helping to modernise and secure highly available network environments. Key Responsibilities Deploy and optimise Cisco ISE and Catalyst 9800 wireless solutions. Lead wireless infrastructure upgrades ...

Technical Program Manager III, Data Center Expansions

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
qualifications: Bachelor's degree in Computer Science, Engineering, a related technical field, or equivalent practical experience 5 years of experience with data center or network infrastructure planning, evaluation and negotiations including new region launches. Experience evaluating technical cloud infrastructure requirements (e.g., power density, thermal/cooling specifications, fiber network connectivity, or latency) to recommend data center or network footprint solutions. Experience driving cross-functional programs and influencing C-level executives and stakeholders across global organizations. Preferred qualifications: Experience leading data center expansion or network infrastructure planning in a hyperscale cloud environment. Experience leading technical site evaluation ...

Senior Lead Infrastructure Engineer

Hiring Organisation
Hackajob Ltd
Location
South West London, London, United Kingdom
Employment Type
Permanent
Management Center (SMC). Experience with other SaaS based Secure Gateway vendor e.g. Zscaler, Netskope etc Ability to build, test and deploy proxy-based security solutions Good understanding of network infrastructure, network security concepts and application layer protocols (http/https) and vulnerability mitigation Good understanding … automation of a Proxy environment and understanding and comfortable working on shell/python scripts and Ansible playbooks. Expertise of networking fundamentals including Network topology, VLANs, Routing, Switching, Global/Local Load Balancing and Firewalls. Flexible to work off hours and weekends in 24x7 on-call rotation. Preferred Qualifications ...

Technical Program Manager III, Data Center Expansions

Location
City of Westminster, England, United Kingdom
Expansions Bachelor's degree in Computer Science, Engineering, a related technical field, or equivalent practical experience 5 years of experience with data center or network infrastructure planning, evaluation and negotiations including new region launches. Experience evaluating technical cloud infrastructure requirements (e.g., power density, thermal/cooling specifications, fiber network connectivity, or latency) to recommend data center or network footprint solutions. Experience driving cross-functional programs and influencing C-level executives and stakeholders across global organizations. Preferred qualifications: Experience leading data center expansion or network infrastructure planning in a hyperscale cloud environment. Experience leading technical site evaluation ...

IT Infrastructure Specialist (1-year FTC)

Hiring Organisation
JAC Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£66000 - £77000/annum
technical infrastructure setup for new store openings, refits, relocations, and brand pop-ups across Europe. This includes configuring and deploying POS hardware, network printers, scanners, mobile tablets, and payment terminals. Store Network Connectivity: Deploy and optimize local in-store networks, focusing on stable retail WiFi, localized LAN environments … technology failures, proactively monitoring uptime and troubleshooting device, data feed, and connectivity drops to minimize commercial downtime. 2. Warehouse Tech Readiness & 3PL Coordination Logistics Network Engineering: Act as the primary technical point of contact during third-party logistics (3PL) partner onboarding, warehouse moves, and facility expansions. Secure Environment Bridging ...

Network & Infrastructure Tooling / Automation Specialist/ Architect - freelance - hybrid, London, UK

Location
Greater London, England, United Kingdom
Senior technologist with deep expertise in designing, building, and governing network and infrastructure tooling platforms that enable scalable, reliable, and compliant enterprise environments. Proven experience defining automation strategy, control frameworks, and operating models that abstract complex network and infrastructure estates into consumable, repeatable services. Strong background in financial … strategy and reference architectures aligned with platform engineering and DevOps principles. Design modular, API-driven tooling layers that decouple intent, policy, and execution across network and infrastructure domains. Establish standards for tool selection, integration, versioning, and lifecycle management. Align tooling strategy with regulatory, risk, and operational resilience requirements. Network ...

Principal Platform Engineer

Hiring Organisation
Leonardo DRS
Location
London, UK
Employment Type
Full-time
Subject Matter Expert (SME) in Windows-based enterprise infrastructures. You'll play a central role in the design, deployment, and support of high-security systems that underpin key defence and aerospace operations. This role is based full-time on site in London and requires DV clearance. What you will … disruption to services. Deploy and integrate secure Windows Server environments (Active Directory, Group Policy, DNS, DHCP) using industry best practices. Implement and maintain infrastructure security measures such as patching, access controls, and hardening to align with compliance and internal governance. Use monitoring tools to proactively optimize system performance ...

Design Quality Engineer

Location
Greater London, England, United Kingdom
within Engineering, you’ll be the key link ensuring our agile software development practices remain fully aligned with global medical device and information security standards. Your core mission is to help ensure that our software design and development activities meet global medical device requirements, leading the practical implementation … ability to apply these in practical, developer‐friendly ways. Technical Skills: A solid understanding of technical security domains, including cloud security, access control, network security, and secure software development lifecycles. Proactive & Detail‐Oriented: A commitment to quality and the ability to drive tasks to completion ...

Systems Engineer - FSI

Hiring Organisation
Fortinet
Location
London, UK
Employment Type
Full-time
looking for a Systems Engineer who can act as a trusted technical advisor to some of the UK's largest and most security-conscious organisations. You'll work alongside our sales teams to design and position Fortinet's industry-leading security solutions, helping customers address challenges around hybrid … cloud, Zero Trust, secure networking, regulatory compliance, operational resilience, and digital transformation. Our solutions span technologies including multi-tenant security architectures, SOC technologies, cloud security, SASE, SD-WAN, Zero Trust, and broader cybersecurity architectures designed for large, complex enterprise environments. As a Systems Engineer at Fortinet ...

VP, Senior Full-Stack Engineer — Network Automation

Location
Greater London, England, United Kingdom
STATE STREET CORPORATION in London seeks a senior level developer with strong network infrastructure experience to join the NAAS development team. You will deliver products for a global network team, focusing on automation, network security, and next generation network architecture. Ideal candidates have extensive Python ...

Design Quality Engineer

Location
Greater London, England, United Kingdom
ability to apply these in practical, developer-friendly ways. Technical Skills: A solid understanding of technical security domains, including cloud security, access control, network security, and secure software development lifecycles. Proactive & Detail-Oriented: A commitment to quality and the ability to drive tasks to completion ...

Mandarin speaking IT Junior Engineer - Banking

Hiring Organisation
People First
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
teamchinapf AND pfteamchina Ref 23518 The Skills You'll Need: Mandarin and English fluent. Solid infrastructure planning and implementation, server room management, virtualization platforms, network and storage administration, system monitoring, assets management, disaster recovery planning, and IT security compliance. Your New Salary: Competitive Depending on experience Fully office … Junior Engineer - What You'll be Doing Each Day: Conduct IT infrastructure management, production operation management, IT asset management, business continuity management, disaster recovery, network management, vendor and third-party management, IT project management related tasks, and perform as Tier 2 IT Support. Incorporate with the IT Infrastructure Manager ...

Senior Network Security & Cisco Specialist – London

Location
Greater London, England, United Kingdom
Onyx-Conseil in London seeks a Senior Network Specialist with deep Cisco and security expertise to design, implement and support secure network solutions. The role is predominantly BAU with design input, covering firewall deployments, DMZ, VPN, high availability and remediation of security findings. Contract ...

Senior Cloud Engineer - SC Cleared

Hiring Organisation
VIQU IT Recruitment
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - 550 per day
Senior GCP Cloud Engineer (Contract, SC) - Kubernetes/GKE/Air-Gapped THE SHORT VERSION A UK technology business building AI systems for regulated, security-sensitive environments is standing up a new data platform on Google Cloud, and needs someone to own the ground it runs on. GKE, infrastructure … part is the topology: an edge cluster and a central cluster with replication between them, putting real weight on networking, inter-cluster connectivity and security posture. This is a GCP role end to end. If your depth is in Azure or AWS, this one won't be the right ...

Infrastructure Engineer

Location
Greater London, England, United Kingdom
internal platform our engineering teams build, test, and collaborate on, spanning compute, storage, networking, build and CI/CD systems, and the security that protects all of it, while partnering with our IT function on identity, devices, and access across the company. You'll turn slow, manual, loosely secured … workflows into fast, reproducible, and genuinely secure ones. This is a hands‐on, high‐ownership role with the freedom to define how internal infrastructure, security, and the technical side of IT work here from the ground up. If you care about engineering velocity, solid networking, best‐in‐class security ...

Lead DevOps Engineer

Location
Greater London, England, United Kingdom
autonomy, make strategic and architectural decisions within your area, and resolve complex technical challenges. You will establish reusable engineering approaches that improve reliability, security, performance, and developer productivity.This is an individual contributor role with no direct reports. You will provide functional leadership, guide engineers at different career stages, influence … science teams to productionize AI solutions and ensure services are ready to operate reliably at scale.* Establish engineering standards and reusable patterns for infrastructure, security, observability, resilience, documentation, and operational readiness.* Lead architectural decisions and evaluate trade-offs across reliability, security, scalability, performance, cost, and maintainability.* Take ownership ...

Network Engineer III - Backbone (Hybrid, London)

Hiring Organisation
CrowdStrike
Location
London, UK
Employment Type
Full-time
technologies that drive modern organizations. Since 2011, our mission hasn't changed — we're here to stop breaches, and we've redefined modern security with the world's most advanced AI-native platform. We work on large scale distributed systems, processing almost 3 trillion events per day and this … each other. Ready to join a mission that matters? The future of cybersecurity starts with you. About the Role: CrowdStrike is looking for a Network Engineer- Cloud (Hybrid, London) who has a solid track record of building and operating hyper-scale hybrid cloud networks. In this role, you will ...

Customer Engagement Executive

Hiring Organisation
E1 Partners
Location
City of London, London, United Kingdom
Customer Engagement Executive | Network & Security Consultancy | London | £30,000–£45,000 Are you an organised, customer-focused professional looking to build a career across project delivery and customer success in the tech sector? A fast-growing network and security consultancy in Moorgate is hiring a Customer ...

Infrastructure Engineering Specialist (Remote Site Infra team)

Hiring Organisation
BT Group
Location
London, UK
Employment Type
Full-time
Closing Date: 11/08/26Due to the sensitive nature of this role, you will be required to undergo DV (Developed Vetting) level Security Clearance (. An allowance of 5k per annum may be payable monthly while you hold this DV and continue to work in a role … that requires that level of security clearance. The terms of this allowance will be made available if you are successful in being recruited into this role. Security isn't always the first thing that comes to mind when you think of BT, but when it comes to keeping ...

Information Security Governance, Risk, and Compliance (GRC) Specialist

Hiring Organisation
Janus Henderson
Location
London, UK
Employment Type
Full-time
Management: Develop and maintain comprehensive cybersecurity policies and procedures. Ensure these policies align with industry standards and regulatory requirements. Assist in the integration of security practices and control across various technical and non-technical departments, enhancing workflow and operational processes. Risk Management: Conduct regular risk assessments to help identify … programs. Foster a company-wide culture of cybersecurity awareness. Keep current with the latest cybersecurity trends and best practices to inform training content and security measuresTrain and guide wider Tech team members on best practices in cybersecurity risk management. Incident Management: Actively participate in the response to security ...

Enterprise Architect - Cloud

Hiring Organisation
World Wide Technology
Location
London, UK
Employment Type
Full-time
given the centrality of hybrid connectivity to this role. Virtualization platforms (VMware, Red Hat OpenShift/OpenStack) as common migration source environments. Security architecture, particularly zero trust and cloud security posture management. Containers and Kubernetes depth beyond managed-service operation. Data platform and analytics services across the hyperscalers … successful candidate will own the technical delivery of cloud transformation engagements end to end - landing zone design, migration strategy and execution, hybrid connectivity, security, and cost governance acting as the single point of technical accountability from design through to go-live. While broad, credible depth across hyperscalers and migration ...