Jobs in London

Sr. SDET - Cloud, Detection Engineer , London)

Design and build scalable cloud detection systems that process billions of events to identify sophisticated threats across multi-cloud environments. Work at the intersection of distributed systems, data engineering, and security analytics, implementing custom query languages, event orchestration, and advanced correlation engines. Collaborate with security researchers to turn expertise into production-grade detection capabilities with low latency and high reliability.

CrowdStrike London, United Kingdom

Hybrid Permanent

Cyber Security Director - Financial Services (Consulting)

As a Cyber Security Director, you will lead a team of cyber professionals, develop client relationships, and deliver cyber-related projects for Financial Services clients. Your role involves strategic market development, client engagement, and contributing to thought leadership in the industry.

Oliver James London, United Kingdom £140,000 – £170,000 pa

On-site Permanent

Head of Security Engineering

Lead Product Security strategy within a high-growth cybersecurity software company, embedding security into modern software development practices and AI-assisted workflows. Partner directly with the CTO and engineering teams to build secure, scalable systems through automation, developer enablement, and Secure-by-Design principles. Shape security culture in a remote-first, engineering-led environment.

Searchability London, United Kingdom £100,000 – £110,000 pa

Cyber Security Management Lead (Advisory - Market Facing)

This role involves advising large organisations on cyber security strategy, risk, and transformation, with a focus on regulatory compliance and maturity assessments. The individual will develop customer-facing solutions, deliver presentations, and contribute to strategic cyber initiatives using frameworks like NIST, ISO27001, and NCSC CAF. It offers a clear career progression path within a consulting environment focused on solving complex cyber challenges.

Oliver James London, United Kingdom £100,000 – £110,000 pa

Senior IT Project Manager (Cyber Security)

This role involves leading complex cyber security and regulatory control programmes, focusing on ISO27001, Cyber Essentials Plus, and cyber risk reduction initiatives. The Senior Project Manager will coordinate technical remediation, manage compliance evidence and reporting, and engage with senior stakeholders across matrixed teams. Success requires influencing without authority, navigating ambiguity, and ensuring delivery aligns with fixed deadlines and organisational risk appetite.

P3M Recruitment London, United Kingdom

Hybrid Permanent Clearance Required

Principal Enterprise Security Architect (Cyber Security)

Leads enterprise-wide cybersecurity architecture and design, ensuring alignment with government standards and organisational risk. Oversees delivery of secure technology solutions, conducts threat analysis, and advises on cross-domain security strategies. Engages with public and private sector stakeholders to shape security decision-making and assurance.

Rullion Engineering Cumbria Teddington, London, TW11 8EE, United Kingdom £71,000 – £90,000 pa

Hybrid Permanent Clearance Required

Machine Learning Integration Engineer

This role involves integrating and optimizing machine learning models within Darktrace's cybersecurity platform. You'll work closely with machine learning specialists and security researchers to prototype new ideas, improve model performance, and scale solutions across the digital estate. The focus is on deploying innovative AI-driven defenses against unknown cyber threats using Python and ML acceleration frameworks.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Hybrid Permanent

Senior Security Researcher

As a Senior Security Researcher, you will focus on AI systems, contributing to rapid prototyping and open-ended research initiatives. You will investigate trends in generative AI security, research attacker tradecraft, and provide feedback to product and development teams.

Darktrace Cambridge, CB2 3BJ, United Kingdom

Hybrid Permanent

Senior ML Engineer, Doc Fraud

This role involves building and optimizing production-scale machine learning systems for document classification and extraction, with a focus on fraud detection in government-issued IDs. The engineer will work on fine-tuning and deploying LLMs and VLMs, designing training and inference pipelines, and improving model accuracy through advanced labeling workflows. The position emphasizes technical leadership, system reliability, and cross-functional collaboration to deliver secure, seamless customer onboarding experiences.

Entrust London, United Kingdom

Hybrid Permanent

Senior Product Manager, Document Verification

A Senior Product Manager will lead a core part of the document verification platform, focusing on improving verification accuracy, customer conversion, and fraud prevention. The role involves close collaboration with engineering, AI/ML, and design teams to drive product strategy and execution in the evolving digital identity space, with a strong emphasis on data-driven decision-making and regulatory compliance.

Entrust London, United Kingdom

Hybrid Permanent

Network Design Engineer - Aruba

This role involves designing and implementing complex network solutions post-sale, translating high-level designs into detailed technical specifications. The engineer will lead solution design for voice, wireless, security, and SD-WAN technologies, validate designs, manage stakeholder relationships, and support customer migration and issue resolution. Work is delivered in a hybrid model with a focus on Aruba technologies and integration with multi-vendor environments.

HAYS Specialist Recruitment Manchester, United Kingdom £60,000 – £70,000 pa

Hybrid Permanent Clearance Required

Microsoft AI Engineer / Azure Artificial Intelligence Engineer

Design and implement security controls for AI and large language model systems on Microsoft Azure. Perform threat modelling, risk analysis, and lead red teaming exercises to identify vulnerabilities in AI platforms. Work within a growing AI risk management and governance team, focusing on securing cloud-based AI solutions and distributed systems.

Huxley Associates London, City And County Of the City Of London, United Kingdom £50,000 – £90,000 pa

Hybrid Permanent

Penetration Tester

This role involves conducting comprehensive penetration tests across internal/external infrastructure, web applications, and networks, using industry-standard tools like Burp Suite, Metasploid, and Nmap. The candidate will produce detailed technical reports, support client engagements, and contribute to research and development in emerging security areas such as OT and threat-led testing. The position supports professional growth with certification opportunities and progression into advanced offensive security disciplines.

Big Red Recruitment Midlands Limited London, United Kingdom £45,000 – £55,000 pa

Hybrid Permanent Clearance Required

Market Development Executive

Are you ready to build a career in specialist cyber insurance by opening doors and creating opportunities? Company-X has an exciting Market Development Executive opportunity!Location: Onsite, Waterfront Business Park, Fleet, Hampshire, GU51 3TW (Within 3 minutes’ walk of Fleet mainline...

KHIPU Networks Ltd Fleet, Hampshire, GU51 3HH, United Kingdom

Senior Software Engineer - eDV Cleared

This role involves working as a Senior Software Engineer within a globally leading national security organisation, contributing to the full software development lifecycle in an agile environment. You will design and deliver custom software solutions, mentor junior developers, and collaborate with cross-functional teams and customers. The role requires handling sensitive projects and demands prior experience in automation and modern software architectures.

Searchability NS&D London, United Kingdom £45,000 – £100,000 pa

On-site Permanent Clearance Required