26 to 50 of 78 Network Segmentation Jobs in London

Security Engineer – Cloud & On-Prem (Hybrid Security)

Location
Greater London, England, United Kingdom
Azure security, Microsoft Defender, Sentinel, identity security, vulnerability management and incident response. Working within Platform Engineering, you will collaborate with Cyber Security, Infrastructure, Cloud, Network, Application, Service and Operations teams to investigate security events, implement agreed controls, remediate vulnerabilities and support security improvement and transformation initiatives. The role offers … Cloud, including security recommendations, posture management and workload protection. Assist with security controls across Azure services including Key Vault, Azure Firewall, Private Link, Network Security Groups and Azure Policy. Review cloud security configurations and identify misconfigurations, excessive permissions and potential security weaknesses. Support the implementation of security baselines, hardening ...

Network Engineer – Insurance

Location
Greater London, England, United Kingdom
Network Engineer wanted - London 2 days per week. This contract role will be working for a large IT company whilst being based on their clients site who are within the insurance sector. Day rate of £500 - £520 per day via Umbrella inside IR35 Summary Design: Create secure network zones using VLANs, subnets, and software-defined networking (SDN). Policy Enforcement: Write and manage firewall rules, access control lists (ACLs), and micro-segmentation policies. Traffic Analysis: Monitor data flow to ensure security policies do not break business applications. Risk Mitigation: Isolate critical assets, IoT devices, and legacy ...

Network Engineer - Insurance

Hiring Organisation
ARM
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £520/day Umbrella Inside IR35
Network Engineer wanted - London 2 days per week. This contract role will be working for a large IT company whilst being based on their clients site who are within the insurance sector. Day rate of £500 - £520 per day via Umbrella inside IR35 Summary Design: Create secure network zones using VLANs, subnets, and software-defined networking (SDN). Policy Enforcement: Write and manage firewall rules, access control lists (ACLs), and micro-segmentation policies. Traffic Analysis: Monitor data flow to ensure security policies do not break business applications. Risk Mitigation: Isolate critical assets, IoT devices, and legacy ...

Network Engineer

Hiring Organisation
G Research
Location
London, UK
Employment Type
Full-time
that scale, accelerate discovery and support innovation across the firm. Take the next step in your career. The roleWe are looking for an experienced Network Engineer to drive the reliability, performance, resilience and security of our network and network security infrastructure. Key responsibilities of the role include … Owning the operational performance, stability, availability and security posture of network and network security platforms end to endEnhancing observability across telemetry, alerting and performance monitoring using tools such as Grafana, Prometheus and ThousandEyes to enable proactive operationsImplementing and maintaining scalable, resilient datacentre network infrastructure built on Cisco ...

Head of Networks

Hiring Organisation
Global
Location
London, UK
Employment Type
Full-time
October 2026Job DescriptionYour Role: Head of NetworksThis is a senior leadership role responsible for the strategy, performance and continual improvement of Global's IP network estate. You'll lead a small team of highly skilled specialists, ensuring the networks supporting Global's live and always-on services are resilient … secure, scalable and aligned to business needs. Global operates a geographically distributed, high-availability network with characteristics similar to a service provider, supporting live broadcast and a nationwide outdoor estate. As Head of Networks at Global, you will provide the clarity, direction and environment for the team ...

Enterprise Architect - Cloud

Hiring Organisation
World Wide Technology
Location
London, UK
Employment Type
Full-time
policy-as-code. Advise clients on cloud economics and FinOps: cost visibility, commitment-based discounting, and rightsizing strategy. Define cloud security architecture: identity federation, network segmentation, encryption, and compliance alignment across all three hyperscalers. Lead technical design workshops, present architecture and migration roadmaps to client leadership … knowledge of AWS Outpost. Landing zone: AWS Control Tower and Organizations for multi-account governance. Networking: Transit Gateway, Direct Connect, and VPC peering/segmentation design. Migration tooling: Application Migration Service (MGN), Database Migration Service (DMS), and Application Discovery Service. Containers: EKS and ECS architecture for modernised workloads. Azure ...

Senior Network Architect: Cloud, Security & Automation

Location
Greater London, England, United Kingdom
Kroll is seeking an experienced Network Engineer to lead the design, deployment and operation of global network services. The role focuses on secure, highly available LAN/WAN, data centre, remote-access and cloud networking across Azure and AWS, with emphasis on network segmentation and Zero ...

Senior Information Security Engineer - Investment Management

Hiring Organisation
Client Server
Location
London, UK
Employment Type
Full-time
compliance and governance capabilitiesYou have experience in a Systems/Infrastructure Security Engineer or similar technical security roleYou have a strong knowledge of Network/endpoint security operations, vulnerability management and threat assessmentYou have experience with Linux/Unix systems administration and hardening, Windows systems security and Group Policy … management, Network security: firewalls, VPNs, network segmentation, routing, Endpoint Detection & Response (EDR) tools (CrowdStrike, Microsoft Defender for Endpoint, etc.), SIEM platforms (Splunk, ELK Stack, Datadog), Identity & Access Management (IAM) concepts and tools (Active Directory, OKTA, etc.)You have strong experience in Information Security, Security Assurance, IT Audit ...

IT Secuirty Architect

Location
Greater London, England, United Kingdom
Infrastructure and Risk teams to ensure designs are operationally viable and aligned to policy. Contributing to strategic security initiatives including: Zero Trust Cloud Security Network Segmentation Identity Modernisation Building strong relationships with business stakeholders and acting as the primary security architecture contact for an aligned business division. What … platforms. Understanding of Identity and Access Management, including: SSO Federation MFA Privileged Access Management Certificate-based Authentication Familiarity with Zero Trust principles and modern network security architectures. Experience working within regulated environments, ideally Financial Services. Excellent communication and stakeholder management skills. Desirable Experience Experience with: AI/ML Security ...

Manager, Cybersecurity, Engineering, OT Technical Consultant, TC, UKI

Hiring Organisation
EY UK
Location
Southwark, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
appetite and regulatory obligations. Deliver engineering delivery and plan and manage scope, schedule, resources and risks. Implement security measures from blueprints including firewall configurations, network segmentation (zones and conduits), VLANs and ACLs, and secure site to cloud connectivity. Produce engineering artefacts including build standards, configuration baselines and asbuilt … developing colleagues. To Qualify for the Role, You Must Have: Experience in cybersecurity with onsite experience (OT experience desirable but not mandatory). Strong network engineering skills (routing, switching, VLANs, ACLs, NAT), firewall rulebase, design/optimisation, and network segmentation. Experience implementing secure remote and local access ...

Cloud Architect

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£700 - £795/day
secure, scalable, resilient, and highly available AWS cloud architectures. Define and implement Zero Trust architecture principles, including identity-centric access, least privilege, strong authentication, network segmentation, and continuous verification. Design and govern multi-account AWS environments, including account structures, organisational units, guardrails, Service Control Policies, security controls … using AWS Landing Zone Accelerator (LZA). Design AWS networking solutions including VPCs, Transit Gateway, Direct Connect, VPN, routing, DNS, firewalls, private connectivity, and network segmentation. Work with AWS Organizations, Control Tower, IAM, SCPs, security services, logging, and compliance controls. Integrate infrastructure automation with CI/CD pipelines ...

Security Architect

Hiring Organisation
Version 1
Location
London, UK
Employment Type
Full-time
clear ownership of the security design decisions that got there. Cloud and application security; experience securing workloads on AWS and/or Azure, including network segmentation, IAM, encryption, secrets management, and security monitoring. You understand AppSec practices including secure SDLC, SAST/DAST tooling, API security, and container ...

Senior Consultant, Cybersecurity, Engineering, TC, UKI

Location
Greater London, England, United Kingdom
cybersecurity engagements. Location – London, Manchester or Scotland Key Responsibilities Support the design of enterprise and IT/OT converged security architectures, including secure network segmentation and access models. Help to produce HLD and LLD artefacts, dataflows and threat models for enterprise and IT/OT converged environments. Contribute … cloud security architecture designs, including secure landing zones, identity integration, connectivity patterns and secrets management. Analyse systems and networks and propose segmentation, secure access methodology and reference designs that engineering teams can implement. Enhance governance and compliance by aligning solutions and controls to various frameworks and standards such ...

Network Systems Engineer (Pre-Sales) - DV Cleared

Hiring Organisation
Arista Networks
Location
London, UK
Employment Type
Full-time
everything we do. Job DescriptionWho You'll Work WithWe are experiencing tremendous growth and have an immediate need for a self-motivated Pre-Sales Network Systems Engineer to provide pre-sales technical support for our Public Sector customers and prospects in the United Kingdom. The Network Systems Engineer … design creative solutions. What You'll DoYou will proactively partner with Arista Account Managers to understand and solve customer challenges and conduct (white board) network architectural sessions and Arista product presentations. You will architect, design and propose Arista Data Center, Routing & Campus network and security solutions to help ...

Network Systems Engineer (Pre-Sales) - DV Cleared

Location
Greater London, England, United Kingdom
do. Job Description Who You’ll Work With We are experiencing tremendous growth and have an immediate need for a self-motivated Pre-Sales Network Systems Engineer to provide pre-sales technical support for our Public Sector customers and prospects in the United Kingdom. The Network Systems Engineer … creative solutions. What You’ll Do You will proactively partner with Arista Account Managers to understand and solve customer challenges and conduct (white board) network architectural sessions and Arista product presentations. You will architect, design and propose Arista Data Center, Routing & Campus network and security solutions to help ...

Senior Network Security Engineer

Location
Greater London, England, United Kingdom
large and complex, we want a life-long partnership, a company our clients and people can rely on. The Role: As Senior Network SecurityEngineer, you will be responsible for the end-to-end design and implementation of security solutions within clients. This will involve working extensively with our clients … Access Cisco Umbrella/Secure Access Deep understanding of: Security policy architecture and optimisation NAT configuration VPN technologies (site-to-site and remote access) Network segmentation and zero‐trust principles Proven ability to design and implement best‐practice security controls to maintain and enhance organisational security posture. Strong ...

Senior Platform Engineer - Azure Data & AI Platform

Location
City Of London, England, United Kingdom
build and operate our Azure-based data and AI platform. This is hands‐on infrastructure and platform work – you'll be writing Terraform, designing network architecture, implementing MLOps (AI model) pipelines, and establishing DevSecOps patterns that engineering teams can use. This isn't a “thought leadership” or “strategy” role. … Actually Do Azure Platform Engineering (40%) Design and implement Azure landing zones, management groups, and subscription architecture Build and maintain hub‐spoke network topologies with proper segmentation and security controls Implement Azure Policy, RBAC, and governance frameworks that balance security with developer productivity Manage identity and access using ...

Senior Security Engineer

Location
Greater London, England, United Kingdom
environments. Define and enforce secure account structures, service control policies (SCPs), guardrails, and baseline configurations across multi‐account setups. Evaluate and improve network segmentation, IAM boundaries, and data protection controls. Identify and remediate misconfigurations using CSPM tooling and manual review. Infrastructure as Code Security: Partner with Cloud Infrastructure … with AWS security services: IAM, SCPs, CloudTrail, GuardDuty, Config, KMS, VPC security, and more. Good knowledge of Kubernetes security - including RBAC, pod security standards, network policies, admission controllers, and secrets management. Experience with cloud security posture management (CSPM) and cloud workload protection (CWPP/CNAPP) tools. Experience securing ...

Information Security Officer (Cloud Security)

Location
Greater London, England, United Kingdom
Threat Modelling methodologies such as STRIDE, PASTA or MITRE ATT&CK/ATLAS. Strong understanding of authentication, authorisation, encryption, logging & monitoring, infrastructure security and network segmentation. Ability to design and review secure technical architectures. Experience reviewing Infrastructure as Code using Terraform and/or CloudFormation. Strong understanding of SDLC ...

Operational Technology (OT) Architect

Hiring Organisation
Tria
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 700 - 750 Daily
Days Onsite per Week An experienced OT Architect is required for a leading organisation embarking on a large-scale Operational Technology and industrial network transformation programme. This is an excellent opportunity for an experienced OT Architect to play a key role in designing and securing critical operational environments across … strategies, standards, and roadmaps while ensuring alignment with both business and regulatory requirements. Essential Experience Proven experience as an OT Architect, ICS Architect, Industrial Network Architect, or similar role. Strong knowledge of Operational Technology (OT), Industrial Control Systems (ICS), and SCADA environments. Experience designing secure industrial networks and segmented ...

Senior Security Engineer (Infrastructure)

Location
City Of London, England, United Kingdom
technical role focused on improving visibility, resilience and security maturity across the organisation. The successful candidate will work closely with INO (Infrastructure & Network Operations), Corporate IT and Platform Engineering teams to strengthen network and platform security, implement scalable controls and support modern security practices across high-availability environments. … regulatory and governance requirements Main Requirements 5+ years experience in a dedicated or heavily security-focused engineering role Strong background in infrastructure, cloud or network security engineering within high-availability environments Strong understanding of Layer 3, Layer 4 and Layer 7 security principles across modern network and infrastructure ...

Principal Security Architect — DevSecOps (Group Manager II - Information Security)

Hiring Organisation
UST Global
Location
London, UK
Employment Type
Full-time
policy-as-code. Define secure engineering standards and reusable guardrails that let teams move quickly within approved boundaries. Apply cloud-native security patterns: IAM, network segmentation, workload identity, secrets management, least privilege, zero trust, runtime security, and auditability. Guide secure architecture for APIs, microservices, event-driven systems, SaaS … security: image scanning, base-image strategy, registry controls, remediation, runtime configuration, and secure workload deployment. Kubernetes security: cluster hardening, namespace isolation, RBAC, admission control, network policies, workload identity, pod security, secrets, ingress, and runtime protection. Policy-as-code (OPA, Gatekeeper, Kyverno, or equivalent). IAM, least privilege, zero trust ...

Cybersecurity Engineer

Hiring Organisation
AMS CWS
Location
London, United Kingdom
Employment Type
Contract
modelling using STRIDE, PASTA, attack trees, tooling and MITRE ATT&CK. Cyber security experience covering authentication, authorisation, logging and monitoring, encryption, infrastructure security and network segmentation. Development and DevOps knowledge, including CI/CD, pipelines, SDLC, scripting, Infrastructure as Code (Terraform or CloudFormation), Docker, Kubernetes (K8s), serverless and Helm. ...

Senior Remediation Architect, Mandiant STS

Hiring Organisation
Google
Location
London, UK
Employment Type
Full-time
ensure successful project execution. Review, assess, and design secure enterprise-wide architectures across on-premises, cloud, and hybrid environments, providing advanced technical guidance on network segmentation, identity perimeters, and infrastructure hardening. Evaluate and advise on the secure deployment of modern workloads, specifically focusing on cloud-native ecosystems … equivalent practical experience.5 years of experience designing, evaluating, or leading enterprise security architecture programs and managing delivery teams. Experience applying advanced enterprise security controls, network engineering concepts, and identity management frameworks. Preferred qualifications: Relevant industry certifications (e.g., CISSP, CCSP, Google Cloud Certified Professional Cloud Security Engineer, or equivalent).Experience ...

Senior Remediation Architect, Mandiant STS

Location
City of Westminster, England, United Kingdom
practical experience. 5 years of experience designing, evaluating, or leading enterprise security architecture programs and managing delivery teams. Experience applying advanced enterprise security controls, network engineering concepts, and identity management frameworks. Preferred qualifications: Relevant industry certifications (e.g., CISSP, CCSP, Google Cloud Certified Professional Cloud Security Engineer, or equivalent). … leading architecture workstreams, and translating deep technical details into clear business terms for management and engineering teams alike. Your ability to quickly parse complex network topologies, identify trust boundaries, and project-manage remediation blueprints will be essential to client success. You will need to travel ...