1 to 25 of 31 Security Hardening Jobs in London

Technical Account Manager - Cybersecurity

Location
Greater London, England, United Kingdom
powered extended managed detection and response (MXDR) services, Ontinue is on a mission to be the most trusted, 24/7, always-on security partner that empowers customers to embrace the future by using AI to operate more strategically, at scale, and with less risk. We believe that … combination of AI and human expertise is essential for delivering effective managed security that is tailored to a customer’s unique environment, operational constraints, and risks. Our MXDR service combines powerful proprietary AI with a one-of-a-kind collaboration model to continuously build a deep understanding ...

Networking & Security Engineer

Location
Greater London, England, United Kingdom
seeking a hands‐on Infrastructure & Security Engineer with deep expertise across security architecture, server, and network domains. Security is the core priority of this role. The successful candidate will take a leading part in strengthening and evolving the firm's security posture in response … increasingly sophisticated threat landscape, including emerging risks associated with AI. This is a technically demanding role that combines proactive security ownership with infrastructure delivery. The successful candidate will act as a security‐first thinker across everything they touch, from day‐to‐day operations through to strategic infrastructure design ...

Networking & Security Engineer

Hiring Organisation
Capula Investment Management
Location
London, UK
Employment Type
Full-time
DescriptionWe are seeking a hands-on Infrastructure & Security Engineer with deep expertise across security architecture, server, and network domains. Security is the core priority of this role. The successful candidate will take a leading part in strengthening and evolving the firm's security posture in response … increasingly sophisticated threat landscape, including emerging risks associated with AI.This is a technically demanding role that combines proactive security ownership with infrastructure delivery. The successful candidate will act as a security-first thinker across everything they touch, from day-to-day operations through to strategic infrastructure design ...

Infrastructure Lead - FinTech, Azure, Security

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
Infrastructure Lead – FinTech, Azure, Security Up to 80,000 + bonus and benefits Hybrid 2:3 in office Quant Capital is looking to speak to candidates to join a growing FinTech business based in South West London. Our is hiring an Infrastructure Engineer to take ownership of core infrastructure … security engineering across a modern Microsoft/Azure environment. This role suits someone who understands scale, cares about uptime, and thinks security-first. Real responsibility from day one. You'll deliver projects across infrastructure, automation, and cloud security, while acting as a technical escalation point for internal ...

NETWORK - Switching, Routing, WAP, LB, GSLB

Hiring Organisation
Zensar Technologies
Location
London, UK
Employment Type
Full-time
looking for an experienced Network Security & Infrastructure Architect to lead enterprise network transformation, security hardening, and infrastructure modernization initiatives. The successful candidate will be responsible for assessing, designing, and implementing secure, scalable, and resilient network solutions across enterprise, data center, hosted, and edge environments. At Zensar … sexual orientation, gender identity, disability, marital status, family medical leave status, or protected veteran status. Technical Skills & Experience: Strong experience in enterprise networking, network security, and infrastructure architecture. Hands-on expertise with Cisco networking technologies, including routing, switching, and Software Defined Access (SDA).Proven experience with firewall platforms, including ...

Staff Engineer

Location
Greater London, England, United Kingdom
applications. Resilience & Performance: Design solution‐wide UI resilience (graceful degradation, back‐pressure, retry strategies) and own performance standards across web and mobile. Quality, Security & Compliance: Own threat modelling and security hardening for tribe front‐end products; maintain high standards through code review, secure coding practices, and risk … observability, performance budgets). Experience with Azure development and cloud‐based infrastructure , including CI/CD and pipeline observability. Experience owning threat modelling and security hardening for front‐end products; strong grasp of OWASP and secure coding practices. Track record of originating and shepherding cross‐team initiatives ...

Security Specialist SA, EMEA Security and Compliance Specialist SA

Hiring Organisation
AmazonWebServices
Location
London, UK
Employment Type
Full-time
Security and Compliance Solutions Architect at AWS, you'll build technical relationships with customers of all sizes and operate as their trusted advisor, ensuring they get the most out of the cloud at every stage of their journey. You'll manage the overall technical security relationship between … customers, making recommendations on security, compliance, cost, performance, reliability, and operational efficiency to accelerate their challenging projects. Internally, you will be the voice of the customer, sharing their needs and wants to inform the roadmap of AWS security services and features. In this role, your creativity will build ...

Cyber Assurance Lead

Hiring Organisation
Rullion Managed Services
Location
City of London, London, Fitzrovia, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £750/day PAYE/ Umbrella DOE
protect themselves from attacks. Doing so requires not just a one-time effort but spans the complete system lifecycle in a changing environment as security posture may evolve over time adapting to emerging threats or changing systems utilisation. The Cyber Assurance Lead role holder is responsible to ensure that … assurance is carried out professionally fulfils its role as last line of defence. They will oversee cyber security controls implementation, from definition in line with risks assessments to operation and maintenance. The Cyber Assurance Lead post holder will conduct assessments and audits, sharing findings and mitigations actions with ...

Senior Network Engineer

Hiring Organisation
UST
Location
London Area, United Kingdom
Senior Network Engineer – Cloud, Security & Infrastructure Location: London (Hybrid) Employment Type: Permanent/Fixed-Term Contract Start Date: ASAP Build, Secure and Transform Enterprise Networks We're seeking a highly skilled Senior Network Engineer to join a growing technology team responsible for designing, securing, and optimizing enterprise and cloud … network infrastructure across a complex, global environment. This is an opportunity to lead the delivery of modern networking and security solutions, working across cloud platforms, next-generation firewalls, automation technologies, and compliance initiatives. You'll play a critical role in ensuring our network infrastructure remains secure, resilient, scalable ...

Technical Program Manager, AI Delivery for Public Sector & Defence, UK

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 … bridge between our cutting-edge AI capabilities and the specific needs of UK Government and defence organisations. You'll navigate complex procurement processes, stringent security requirements, data sovereignty concerns, and regulatory compliance while ensuring our customers successfully deploy and scale our AI solutions. In this role, you'll collaborate ...

Technical Program Manager, AI Delivery for Public Sector & Defence, UK Cohere London

Location
Greater London, England, United Kingdom
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 … bridge between our cutting-edge AI capabilities and the specific needs of UK Government and defence organisations. You'll navigate complex procurement processes, stringent security requirements, data sovereignty concerns, and regulatory compliance while ensuring our customers successfully deploy and scale our AI solutions. In this role, you'll collaborate ...

CLOUD SECURITY ENGINEER

Location
Greater London, England, United Kingdom
Internet of Things. Reply’s services include Consulting, System Integration, and Digital Services. Role Overview: We are looking for a hands-on Cloud Security Engineer to join our growing cybersecurity practice. This is an engineering-first role so we are looking for someone who builds, configures, and secures cloud … embedded within financial services and public sector client engagements, working directly alongside engineering and platform teams to design and implement secure cloud architectures, integrate security into delivery pipelines, and improve cloud security posture across primarily AWS -based environments. You will bring a strong cloud engineering background with ...

Senior Systems Administrator

Hiring Organisation
Verve
Location
London Area, United Kingdom
with deep experience configuring, managing, and troubleshooting hardware and software. You're fluent in MacOS, Windows, Google Workspace, Microsoft O365, WiFi networks, and current security protocols. You'll provide direct support to team members while driving long-term operational IT projects. Position Responsibilities Infrastructure & Project Leadership Own and drive … long-term IT infrastructure projects from scoping through delivery including network upgrades, cloud migrations, security hardening, and tooling improvements Develop and maintain technical roadmaps aligned with business goals, collaborating with leadership to prioritize initiatives Design, implement, and continuously improve automated provisioning and systems management pipelines (CI/ ...

Senior Devops Engineer

Location
Greater London, England, United Kingdom
Oxford Dynamics is at an inflection point. We operate in some of the most complex and high‐stakes environments in the world defence - national security, AI and robotics. The decisions we make now will define not just how fast we grow, but who we become. You will work closely … ordnance disposal. The same brain reasons across the screen and the machine. We work where wrong decisions can be catastrophic, partnering with defence and security organisations internationally to help protect nations, infrastructure and lives What you will be doing here/why this role matters Oxford Dynamics ...

SC/DV Senior Infrastructure Engineer

Location
Greater London, England, United Kingdom
Outside IR35 Contract Length: 6 months Clearance : Active SC or DV Clearance required I’m looking for an experienced, security-focussed SeniorInfrastructure Engineer to design, implement and support secure Microsoft infrastructure across complex enterprise environments. This is a hands-on role focused on Microsoft infrastructure, identity, security, automation … PowerShell and Ansible automation experience Experience designing and supporting secure Microsoft infrastructure services Knowledge of identity, authentication and privileged access management (PAM) Experience with security monitoring, SIEM and logging Experience supporting Exchange/Exchange Online, DNS and core infrastructure services Strong troubleshooting skills across infrastructure and security environments ...

Server Engineer

Hiring Organisation
VIQU IT Recruitment
Location
London, South East England, United Kingdom
Employment Type
Full-Time
Salary
£500.00 - £600.00 per day
Directory, DNS, DHCP, and Group Policy. Administering VMware vSphere environments, with Hyper-V experience viewed as an advantage. Delivering server patching, operating system upgrades, security hardening, and vulnerability remediation. Diagnosing and resolving infrastructure issues, carrying out root cause analysis where appropriate. Assisting with infrastructure change projects, including server … beneficial). Strong understanding of Active Directory, DNS, DHCP, and Group Policy. Experience with Windows patch management, operating system lifecycle management, and server security best practices. Excellent troubleshooting skills and experience supporting business-critical infrastructure. Strong communication skills with the ability to produce clear technical documentation. Desirable Experience ...

Principal Engineer

Location
Greater London, England, United Kingdom
policymakers who can act on what they learn. Tasks About the role You will own all of AIWI's technology: architecture, implementation, deployment, security, and maintenance. Delivery will be hands-on and you will manage a budget for executing items defined on your roadmap. You will work closely with … founders, Head of Security, and translate requirements from our operations, research, and advocacy teams into working systems. The work is demanding, sensitive, and consequential; conviction in our mission is essential. Areas of Ownership Internal tooling. We operate in a highly sensitive environment. Many commercial SaaS products, and hosted ...

IT Infrastructure Solutions Architect

Location
Greater London, England, United Kingdom
readiness patterns.* Define hybrid cloud architecture and operating model across Azure and AWS (connectivity, identity/access concepts, monitoring/logging, backup/security baselines).* VDI/RDS architecture and standards: define operationally supportable architectures and standards for Omnissa Horizon, Workspace ONE, and Microsoft RDS (availability, scalability, security … enterprise image/template strategy, including repeatable build pipelines with Packer, template/content distribution using VMware Content Library, validation gates, versioning, rollback, and security hardening baselines.* Lead solution design and implementation for major infrastructure programmes, migrations, and technology refresh initiatives, ensuring designs are scalable, secure, cost-effective ...

Senior Manager - Principal Data Engineer

Location
Greater London, England, United Kingdom
through Databricks Workflows, Delta Live Tables, Azure Data Factory Implement and maintain Delta Lake storage architectures and Unity Catalog governance frameworks, ensuring data quality, security, and compliance across the data estate Design data solutions for scalability, performance, resilience, and operational excellence, embedding enterprise-grade standards from inception through production … architectures such as Microsoft Agent Framework or equivalent frameworks in Python, TypeScript, or other languages Experience architecting data solutions for scalability, performance optimization, security hardening, and operational excellence in production environments Knowledge of Infrastructure as Code (IaC) frameworks including Terraform or Azure Bicep for data platform provisioning ...

Full Stack Engineer - Contract - Long Term

Hiring Organisation
VIQU IT Recruitment
Location
London, United Kingdom
Employment Type
Contract
platform engineers so models, pipelines and infrastructure land as one product rather than three. Improving the day to day: CI/CD, observability, security hardening, documentation. Sitting in front of customers and partners and turning what they need into something buildable. What You Will Need Python. Serious commercial … delivered against customer deadlines that do not slip, and you get methodical rather than frantic when something breaks. Secure environment fit. Happy following strict security and handling procedures, and getting to UK customer sites when the programme needs you there. Communication. Clear with engineers and with customers ...

Senior Manager, Databricks Architect, AI&Data, FS

Location
Greater London, England, United Kingdom
Databricks environment. Translate business needs into robust data products that support real-time decision-making and predictive modeling. Lead performance tuning, cost optimization, and security hardening of Databricks on Azure. To qualify for the role, you must have A track record of delivering large Databricks data transformations & appropriate ...

Hosting Platform Engineer (Unix/Linux)

Location
City Of London, England, United Kingdom
description Manage and execute operating system, middleware, application server, and Java platform patching, upgrades, and lifecycle maintenance across UNIX/Linux environments. Perform security hardening, vulnerability remediation, configuration management, cluster patching, rolling upgrades, rollback planning, disaster recovery validation, and post-patch testing while ensuring compliance with enterprise security … role UNIX/Linux (RHEL, Solaris, AIX) Red Hat Satellite Ansible Oracle WebLogic OPatch JBoss EAP Java (JDK/JRE) JVM Tuning Security & Vulnerability Management Change Management Disaster Recovery Smoke Testing #J-18808-Ljbffr ...

Hosting Platform Engineer (Unix/Linux)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£475 - £550/day Inside IR35
description Manage and execute operating system, middleware, application server, and Java platform patching, upgrades, and lifecycle maintenance across UNIX/Linux environments. Perform security hardening, vulnerability remediation, configuration management, cluster patching, rolling upgrades, rollback planning, disaster recovery validation, and post-patch testing while ensuring compliance with enterprise security … role UNIX/Linux (RHEL, Solaris, AIX) Red Hat Satellite Ansible Oracle WebLogic OPatch JBoss EAP Java (JDK/JRE) JVM Tuning Security & Vulnerability Management Change Management Disaster Recovery Smoke Testing Disclaimer: This vacancy is being advertised by either Advanced Resource Managers Limited, Advanced Resource Managers IT Limited ...

Business Development, Mission Innovation, Public Sector (UK, Germany and International Organisations)

Hiring Organisation
AmazonWebServices
Location
London, UK
Employment Type
Full-time
shown early, and refined through customer feedback, producing a growing set of proof points. Adoption narratives span all levels of sensitivity, adding service accreditation, hardening, and additional assurance requirements when needed. Customers should experience AWS as a quiet enabler that has placed capacity, compute, silicon, infrastructure, and power … points.- Develop evidence-based adoption narratives, taking them from the commercial world and translating them for public sector at every level of sensitivity, adding security hardening as required.- Map the decision makers who hold influence within key accounts, alongside understanding the formal and informal power structures that surround ...

Founding DevOps Engineer

Hiring Organisation
LinuxRecruit
Location
London, UK
Employment Type
Full-time
Establish and scale the infrastructure that powers cutting-edge AI innovation. You'll take charge of both cloud and on-prem environments, implement automation, security frameworks, and device management, and collaborate with top-tier hardware and software engineers to push boundaries. It's a role for someone who thrives … autonomy, problem-solving, and making high-impact decisions. If Kubernetes, Terraform, security hardening, and automation are your bread and butter—and you're ready to be the go-to DevOps expert in a fast-growing company—this is your moment. No bureaucracy, no micromanagement, just the chance ...