26 to 50 of 53 Security Posture Jobs in London

Engineer - Microsoft Defender Security Operations 3 months London - onsite Inside IR35 - Umbrella only Role Overview We are seeking an accomplished IT Engineer with specialist expertise in the Microsoft Defender security ecosystem. The successful candidate will strengthen cyber defence across endpoints, identities, cloud services, and hybrid infrastructure. Key Responsibilities … Security operations and threat defence Manage and optimise Microsoft Defender across Endpoint, Identity, Cloud Apps, Office 365, and Cloud Security Posture Management. Monitor alerts and conduct threat investigations. Support incident response with containment and remediation. Conduct proactive threat hunting. Platform administration and governance Configure policy baselines ...

Location: London Happy to talk flexible working The Opportunity As we focus on transformation across the organisation, we're also investing in our cyber security capabilities to keep our people, data, and customers safe. That's why we're building a new Detection Engineering function—and we're looking … custom detection logic for complex environments and emerging threats. Monitor evolving attacker tactics (TTPs), integrating insights into detection and prevention strategies. Collaborate across Cyber Security, Engineering, and Global IT teams to enhance security posture and incident response. About You Strong experience across both offensive and defensive cyber ...

Active Directory Security Consultant – SC Cleared - Inside IR35 We are seeking an experienced Active Directory Security Consultant to lead a comprehensive security assessment across on-premises AD and Azure identity environments. This role combines deep technical expertise with advisory capability, helping uplift identity and access security posture in line with Microsoft and NCSC best practice . Key Responsibilities Conduct end-to-end Active Directory security assessments , including domain controllers, trusts, privileged behaviours, deprecated accounts, and protocol risks. Lead KRBTGT account analysis and safe password rotation planning. Review Privileged Access structures, group memberships ...

practices focused on client delivery services across the Firm. Our Global Team Of Over 100 Professionals Includes Former Federal Law Enforcement Personnel, In-house Security Experts, Big 4 Consultants, Federal Regulators, Threat Intel And Dark Web Experts, Etc. We Have Helped Clients And Partners For 10+ Years Across Industries … Geographies With The Following Services Incident Response, Intelligence, and Investigations. Technology, Privacy, and Cyber Risk Advisory. End Point & Managed Detection & Response. The EMEA Cyber security & Privacy practice is growing and has ambitions to expand its capabilities from a strong base in incident response, intelligence and investigations into additional proactive ...

practices focused on client delivery services across the Firm. Our Global Team Of Over 100 Professionals Includes Former Federal Law Enforcement Personnel, In-house Security Experts, Big 4 Consultants, Federal Regulators, Threat Intel And Dark Web Experts, Etc. We Have Helped Clients And Partners For 10+ Years Across Industries … Geographies With The Following Services Incident Response, Intelligence, and Investigations. Technology, Privacy, and Cyber Risk Advisory. End Point & Managed Detection & Response. The EMEA Cyber security & Privacy practice is growing and has ambitions to expand its capabilities from a strong base in incident response, intelligence and investigations into additional proactive ...

planning and capacity upgrades Participates in the planning and implementation of system/platform updates to optimize performance, efficiency, and capacity Performs holistic platform security posture which includes identifying risks, escalating potential concerns, and implementing both risk mitigation plans and control functions Completes status reports, troubleshooting guides … Management disciplines. Storage technologies – Basic Backup technologies – Basic Atlassian experience – Jira, Confluence – Intermediate Agile methodology awareness (Scrum/Kanban) – Intermediate HSM experience - Intermediate Corporate Security Responsibility All Activities Involving Access To Mastercard Assets, Information, And Networks Comes With An Inherent Risk To The Organization And, Therefore, It Is Expected ...

based ANYWHERE IN THE UK NTT DATA, a global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance … enhance client security postures. The ideal candidate will have a strong background in offensive security, a deep understanding of attack techniques, and excellent communication skills to deliver impactful results. Please note To be considered for the position, candidates must be eligible for Security Check (SC) clearance. What ...

based ANYWHERE IN THE UK NTT DATA, a global leader in security services, is seeking a CREST-certified Offensive Security Tester to join its UK Security Practice. This role involves conducting advanced penetration testing engagements, identifying vulnerabilities across diverse IT environments, and providing actionable remediation guidance … enhance client security postures. The ideal candidate will have a strong background in offensive security, a deep understanding of attack techniques, and excellent communication skills to deliver impactful results. Please note To be considered for the position, candidates must be eligible for Security Check (SC) clearance. What ...

week . Our office is in Farringdon, London. If you can't commit to this, please don't apply. Responsibilities Own AWS infrastructure security using least-privilege and zero-trust principles Build and maintain secure CI/CD pipelines with automated security gates (Snyk, SonarQube, OWASP ZAP) Conduct … Implement DAST scanning (OWASP ZAP) for staging environments with scheduled scans Deploy secrets detection tooling (e.g., GitLeaks, TruffleHog) across all repositories Establish a baseline security posture through initial penetration test; document and prioritise remediation backlog 6 months Complete remediation of all critical/high findings from initial ...

week . Our office is in Farringdon, London. If you can't commit to this, please don't apply. Responsibilities Own AWS infrastructure security using least-privilege and zero-trust principles Build and maintain secure CI/CD pipelines with automated security gates (Snyk, SonarQube, OWASP ZAP) Conduct … Implement DAST scanning (OWASP ZAP) for staging environments with scheduled scans Deploy secrets detection tooling (e.g., GitLeaks, TruffleHog) across all repositories Establish a baseline security posture through initial penetration test; document and prioritise remediation backlog 6 months Complete remediation of all critical/high findings from initial ...

Cyber Security Analyst - Permanent Role Location: Hybrid | London Employment Type: Full-Time Shape the Future of Our Security Framework We're looking for a Cyber Security Analyst who is passionate about closing security gaps and ensuring robust compliance. This is a permanent role where your expertise … implementation AND ongoing maintenance will be the cornerstone of our security strategy. Why This Role Matters Gap Analysis at the Core: You'll lead regular risk assessments and gap analyses to identify vulnerabilities and strengthen our security posture. ISO 27001 Expertise: Beyond implementation, you'll ensure continuous compliance ...

Cyber Security Analyst - Permanent Role Location: Hybrid | London Employment Type: Full-Time Shape the Future of Our Security Framework We're looking for a Cyber Security Analyst who is passionate about closing security gaps and ensuring robust compliance. This is a permanent role where your expertise … implementation AND ongoing maintenance will be the cornerstone of our security strategy. Why This Role Matters Gap Analysis at the Core: You'll lead regular risk assessments and gap analyses to identify vulnerabilities and strengthen our security posture. ISO 27001 Expertise: Beyond implementation, you'll ensure continuous compliance ...

Location: London Happy to talk flexible working The Opportunity As we focus on transformation across the organisation, we’re also investing in our cyber security capabilities to keep our people, data, and customers safe. That’s why we’re building a new Detection Engineering function—and we’re looking … custom detection logic for complex environments and emerging threats. Monitor evolving attacker tactics (TTPs), integrating insights into detection and prevention strategies. Collaborate across Cyber Security, Engineering, and Global IT teams to enhance security posture and incident response. About you Strong experience across both offensive and defensive cyber ...

client are looking for a talented Cyber Security Consultant to join their growing team. In this role, youll provide expert guidance on protecting information systems, networks, and data assets. Youll work with clients across diverse industries, helping them strengthen their security posture, achieve compliance, and stay resilient … against evolving cyber threats. Experience: - Security Cleared (Essential) - General Cyber technologies (Splunk, Elastic, clearly the Azure and AWS space Defender suite, O365 etc) - Vulnerability Management experience in deployment in both AWS and Azure space. - Ideally some IAM and PKI experience ...

optimisation of CyberArk Privileged Access Management (PAM) services across a complex enterprise environment. This role will play a pivotal part in shaping the security posture of the organisation by delivering robust, scalable, and secure PAM solutions and ensuring seamless integration with core business systems. Role Overview … will drive the end-to-end architecture and implementation of CyberArk components-including Vault, CPM, PVWA, and PSM -while ensuring alignment with security frameworks, corporate standards, and operational requirements. You will collaborate closely with technical teams, stakeholders, and CyberArk vendors to deliver a highly secure and efficient privileged access ...

Senior Security Risk Assurance Manager - SC cleared Location: Hybrid (75% remote) with on-site presence as required Contract Type: Permanent & Full-time Salary: Competitive + Benefits About the Role The Senior Security Risk Assurance Manager plays a critical role in strengthening the organisation's security posture ...

experienced Cloud Network Engineer to join their UK-based Cloud Platform function - someone who can take ownership of Azure networking, automation, and security posture across a large, complex environment. What you’ll be doing Designing, building, and maintaining secure cloud network architectures within Azure (VNETs, Subnets, Routing, Peering … VPNs, and Firewalls) Implementing and managing network security with Palo Alto firewalls and Azure Firewall Using Terraform to manage Infrastructure as Code across network and security layers Working closely with the Cloud Platform and Security Engineering teams to ensure resilience, scalability, and compliance Supporting global network connectivity ...

environments. Lead technical projects and collaborate across teams to deliver innovative infrastructure. Provide Tier 3 support and maintain documentation for secure systems. Strengthen our security posture in line with PCIDSS, PII, CIS, and NIST standards. What You Bring: CCNA R&S certification and 3+ years in network … Centre. Knowledge of routing protocols, high availability, and secure network design. Bonus: Palo Alto, F5, cloud networking, automation (Python/Ansible), and security certifications (CISSP, PCNSE, etc.). We're committed to creating a workplace where everyone feels valued, supported, and empowered to succeed. We celebrate diversity and welcome ...

client are looking for a talented Cyber Security Consultant to join their growing team. In this role, youll provide expert guidance on protecting information systems, networks, and data assets. Youll work with clients across diverse industries, helping them strengthen their security posture, achieve compliance, and stay resilient ...

Tech's overarching strategic technology objectives. Appropriately manage technology risk and develop plans to address the challenges presented by legacy technology. Support MMC's security posture by proactively managing & addressing any emerging vulnerabilities within our application landscape. Facilitate communication and reporting to senior leadership and stakeholders on project ...

RFIs and proposed architectures, contributing design options, scope assumptions, and delivery estimates that can be sold and delivered on time and within budget. • Harden security posture: Define and validate SASE/Zero-Trust policies, ZTNA access models, identity-aware segmentation, and secure site templates; align with Nasstar security … SASE policy definition; ZTNA (client and gateway). • Routing & overlays: BGP, OSPF, IPsec, GRE; dual-underlay/dual-hub; DIA/MPLS migrations. • Firewalling & security: NGFW policies, IDS/IPS, SSL inspection, cert chains and device PKI hygiene; Zero-Trust principles and identity-aware access. • LAN/ ...

RFIs and proposed architectures, contributing design options, scope assumptions, and delivery estimates that can be sold and delivered on time and within budget. • Harden security posture: Define and validate SASE/Zero-Trust policies, ZTNA access models, identity-aware segmentation, and secure site templates; align with Nasstar security … SASE policy definition; ZTNA (client and gateway). • Routing & overlays: BGP, OSPF, IPsec, GRE; dual-underlay/dual-hub; DIA/MPLS migrations. • Firewalling & security: NGFW policies, IDS/IPS, SSL inspection, cert chains and device PKI hygiene; Zero-Trust principles and identity-aware access. • LAN/ ...

holiday Private health & life insurance Enhanced parental leave Flexible working hours & wellbeing support About Join a leading financial institution investing heavily in modern networking, security, and automation. You'll be part of a high-performing engineering team supporting low-latency trading, secure connectivity, and core enterprise operations across global … datacentres. This is a hands-on, design-focused role where you'll shape network architecture, strengthen security posture, and drive operational excellence in a fast-moving, regulated environment. What you'll do: Design and operate scalable Layer 3 architectures and leaf-spine networks Lead BGP configuration, optimisation ...

M365 Consultant/Senior Consultant, you will help transform clients’ cybersecurity posture by designing and implementing advanced Microsoft Threat Protection technologies. You will work directly with clients in a consulting capacity, supporting medium to large enterprise environments and contributing to robust Cyber Defence strategies across endpoints, identities, cloud … maintain cyber defence use cases, correlation rules, and attack chain detections across disparate systems.Design, implement, and integrate SIEM solutions—particularly Microsoft Sentinel—into Security Operations.Perform threat hunting across endpoints, identities, networking, cloud, and collaboration platforms in the Microsoft ecosystem.Handle L2-level incidents leveraging Microsoft Sentinel and Microsoft Defender tools.Support ...

M365 Consultant/Senior Consultant, you will help transform clients’ cybersecurity posture by designing and implementing advanced Microsoft Threat Protection technologies. You will work directly with clients in a consulting capacity, supporting medium to large enterprise environments and contributing to robust Cyber Defence strategies across endpoints, identities, cloud … maintain cyber defence use cases, correlation rules, and attack chain detections across disparate systems.Design, implement, and integrate SIEM solutions—particularly Microsoft Sentinel—into Security Operations.Perform threat hunting across endpoints, identities, networking, cloud, and collaboration platforms in the Microsoft ecosystem.Handle L2-level incidents leveraging Microsoft Sentinel and Microsoft Defender tools.Support ...