10 of 10 Security Hardening Jobs in London

Cyber Security Lead London (City) | Financial FinTech £110,000 + Package | Hybrid Working We are seeking a technically hands-on Cyber Security Lead/Senior Security Engineer to take ownership of security operations within a high-performance trading and regulated FinTech environment. This role combines hands … engineering, penetration testing, Linux security, PKI certificate management, and regulatory compliance across a complex exchange infrastructure. Key Responsibilities Lead hands-on cyber security operations across infrastructure, networks, and cloud environments Conduct penetration testing, vulnerability assessments, red team, and tabletop exercises Manage Linux security hardening and support ...

hiring a Senior Security Engineer to lead and raise the bar for enterprise security at Spotify. In this role, you'll be hands‐on across core security domains, IAM, endpoint management, networking, and shaping how we secure an increasingly AI‐enabled enterprise. You'll build tooling … across IT, infrastructure, legal, and beyond to keep Spotify moving fast without compromising on security. The ideal candidate brings solid professional experience in enterprise security, strong technical foundations, and a genuine comfort with AI, both as a tool to augment their own work and as a surface area ...

What if you could embed security into a platform before it goes live—not fix it after?” Coba IT are hiring on behalf of a client for a Senior Security Consultant to lead security across a brand-new, cloud-native platform being built from the ground up. … This is not a box-ticking role. It’s a chance to operate at the intersection of fast-paced engineering and rigorous governance—shaping security strategy while enabling delivery at speed. The Role As a Senior Security Consultant, you’ll act as the technical security lead within ...

infrastructure — kernel tuning, CPU pinning, NUMA optimisation, and network stack configuration on Linux Owning patching strategy, vulnerability remediation, and lifecycle management across both estates Hardening environments against CIS benchmarks and internal security standards across both platforms Investigating and resolving complex, high-priority incidents in a time-critical production … trading environment Contributing to infrastructure architecture decisions alongside network, security, and platform engineering teams What We're Looking For 5–10 years hands-on infrastructure engineering experience across both Linux and Windows in a production environment Deep Linux systems expertise — RHEL/CentOS/Ubuntu, kernel-level tuning, performance ...

Infrastructure as Code (IaC) and GitOps-driven workflows for streamlined processes. Build and maintain VM provisioning pipelines, including golden images, network attachments, and baseline security policies. Integrate platform logging and event streams into Splunk Cloud for comprehensive audit and monitoring. Define DFW rulesets and security policies as code … infrastructure release workflows. Desirable Skills: Experience in critical national infrastructure or highly regulated environments. Exposure to monitoring, logging, and observability tooling. Knowledge of security hardening, compliance, and audit controls. VMware certifications. Experience designing platforms for secure workload hosting at scale. Join us in this exciting opportunity to shape ...

infrastructure on Google Cloud Platform (GCP). You will collaborate closely with development, operations and platform teams to automate deployments, ensure platform reliability, enforce security standards and drive adoption of infrastructure‐as‐code and automation best practices. Your responsibilities: Design, implement, and manage CI/CD pipelines and cloud … ensure high availability and scalability of applications. Build secure, reliable, and cost-optimized cloud environments. Troubleshoot issues across environments and maintain compliance with security best practices. Drive automation and infrastructure-as-code adoption for faster and more efficient delivery. Your Profile Essential skills/knowledge/experience: Strong experience ...

premises and Azure environments. Our client is specifically looking for a hands-on engineer with deep expertise across Windows Server, Azure Infrastructure, Active Directory, security, patching, and operational excellence – this is not a cloud-native, DevOps, or Kubernetes-focused role. You will play a key role in maintaining … enhancing a critical hybrid infrastructure estate, acting as a senior technical escalation point whilst driving platform improvements, security standards, and infrastructure projects. The Opportunity As Principal Platform Engineer, this position requires someone who can operate independently, take ownership of complex technical issues, lead infrastructure projects, and contribute ...

premises and Azure environments. Our client is specifically looking for a hands-on engineer with deep expertise across Windows Server, Active Directory, Azure Infrastructure, security, patching, and operational excellence – this is not a cloud-native, DevOps, or Kubernetes-focused role. You will play a key role in maintaining … enhancing a critical hybrid infrastructure estate, acting as a senior technical escalation point whilst driving platform improvements, security standards, and infrastructure projects. The Opportunity As Principal Platform Engineer, this position requires someone who can operate independently, take ownership of complex technical issues, lead infrastructure projects, and contribute ...

fully up to date with patches Contribute to wider infrastructure project delivery (Windows/server-focused) Collaborate across infrastructure teams (Network, EUC, Messaging, Security, Service Improvement) Work with Project Managers to meet timelines and delivery milestones Coordinate with application teams and vendors (scheduling, validation, infrastructure-level issue triage) Provide … prem + Azure) Platforms: Nutanix AHV Azure Core infrastructure: AD, GPO, DNS, DHCP Strong PowerShell scripting for reporting, automation and repeatable tasks Experience with security hardening, patch management, and server lifecycle management Experience with server decommissioning Familiarity with structured delivery, change control, Change Advisory Board, and design governance ...

Windows IT Support Engineer – Vulnerability Management (OS & 3rd Party Application Security) Canary Wharf, UK Long Term Contract (Inside Ir35) Hybrid (2 days a week) Job Summary: We are looking for a Windows IT Support Engineer specializing in Vulnerability Management with hands-on experience in managing operating system … third-party application vulnerabilities. The ideal candidate will be responsible for identifying, analyzing, and remediating vulnerabilities across Windows environments while ensuring system security, compliance, and operational stability. Key Competencies: Windows OS Security Vulnerability Management (OS & Applications) Patch Management & Remediation Risk Assessment IT Support & Troubleshooting Key Responsibilities: Perform vulnerability ...