Cyber Security Jobs

• United Kingdom
• Remote
• Senior

Security researcher role on CrowdStrike Intelligence's Advanced Research Team, developing automated solutions for large-scale data collection, running honeypots and Internet-wide scans, and performing vulnerability research. The position also involves reverse engineering, publishing research on the blog or at conferences, and applying GenAI/LLM workflows to security research.

CrowdStrike · Android · iOS +3

• United Kingdom
• Remote
• Junior

Embedded technical advisor partnering with strategic customers to drive adoption, optimization and operational support of the CrowdStrike Falcon platform. Involves deployment, configuration, troubleshooting, scripting with Falcon APIs, and mentoring customer security teams across endpoint, identity and cloud modules.

CrowdStrike Falcon · Windows · Mac +7

• Nottingham
• Hybrid
• £72,277 – £86,060 pa
• Senior
• Permanent

Owns cyber security compliance across PCI-DSS, the Smart Energy Code, Retail Energy Code and ITGC, managing external audits end-to-end. Leads protective monitoring with SOC/CERT and managed service providers, vulnerability management and penetration testing, and incident response up to Board level. Also mentors junior colleagues and supports DevSecOps teams with threat assessments and IaC reviews.

Splunk · Microsoft Sentinel · Qualys +7

• Malvern, England, United Kingdom
• Hybrid
• £69,975 – £77,750 pa
• Senior

Deliver cyber security consultancy by leading the design and development of secure technical system and solution architectures across a range of technologies and environments. Work in partnership with clients to drive security outcomes, develop security plans, policies and processes, and advise on security-related technology selection. Collaborate with other architect disciplines, mentor staff, and shape security architectural solutions that meet governance and regulatory requirements.

• Cambridge
• Senior

Provides technical leadership for FPGA-based solutions in security-focused systems, owning architecture, VHDL RTL design, verification, and integration with embedded and host software. Balances hands-on implementation with planning, estimation, and mentoring, while defining development processes such as CI/CD and configuration management.

Xilinx · Zynq · Versal +6

• Leicester
• On-site
• £50,000 – £60,000 pa
• Mid-level
• Permanent

First in-house IT role for a growing care group, acting as the intelligent client to an outsourced IT provider. You'll manage SLAs, own Microsoft 365 access and cyber controls, run monthly multi-site health checks, and oversee IT governance and licence spend, reporting directly to the CFO.

Microsoft 365 · VoIP · AI

• Virtual Location - Uk
• Permanent

Adversarial security testing role on AWS's Continuous Security Testing team, turning threat intelligence and scanner signals into testable hypotheses against live production services. Combines hands-on penetration testing with AI-augmented source code review, tracing chained attack paths and building lasting detections, canaries and fuzzers. Also involves testing agentic AI systems and mentoring engineers.

AWS

• Malvern, England, United Kingdom
• On-site
• £65,700 – £73,000 pa
• Senior

Technically leads multidisciplinary teams on complex cryptosecurity bids and projects, interpreting user, system and security requirements for crypto systems. Advises on high-grade crypto and key management, analyses algorithms and secure protocols, and engages regularly with customers and stakeholders. Based on-site at Malvern, with travel to customer sites expected.

• Manchester
• Hybrid
• £60,000 – £75,000 pa
• Mid-level

Lead and evolve the security, privacy and governance framework for a UK software business, acting as Data Protection Officer. Day to day you own the ISMS and ISO 27001/Cyber Essentials Plus certifications, run UK GDPR and DPIA work, build AI governance, manage cyber risk and supplier assurance, and present to board-level stakeholders.

ISO 27001 · Cyber Essentials Plus

• Cambridge
• On-site
• Mid-level
• Permanent

Consultants assess critical systems for vulnerabilities, building proof-of-concept demonstrators that combine software, hardware and user interaction. The role spans reverse engineering, low-level programming and rapid prototyping for UK defence and national security clients, working on-site alongside around 40 scientists and engineers.

• Benfleet

Supports the compliance and integrity of control and information systems at a gas-fired power station, covering security strategy, policies, risk assessments, audits and incident response. Works with the Cyber Security Manager on OT security, ISA/IEC 62443 standards and regulatory frameworks, plus Management of Change and RCA investigations.

ISA/IEC 62443 · NIS Directive · NCSC Cyber Assessment Framework +1

• Hull
• On-site
• Lead

Senior escalation point for complex L2/L3 infrastructure incidents, owning them through to resolution across Microsoft 365, Entra ID, Active Directory, Intune, and Windows/Linux estates. The role also covers security hardening, patching, vulnerability management, and PowerShell automation, while mentoring L1/L2 engineers and working with the IT Architect.

Microsoft 365 · Entra ID · Active Directory +7

• Stevenage
• On-site
• £70 – £75 ph
• Mid-level
• Contract

Day-to-day BAU support, administration and configuration management across Windows infrastructure and workplace environments, including patching, change implementation and asset documentation. Acts as Tier 2/Tier 3 escalation for complex Windows issues, handling incident response, root cause analysis, monitoring, backups and security compliance. Requires active DV clearance and 100% onsite work in a highly secure, restricted environment.

Windows Server · Windows · VDI +1

• Glasgow
• Hybrid · 3 days in office
• £450 – £550 pd
• Senior
• Contract · Flexible

Support the development, integration and maintenance of large-scale enterprise infrastructure platforms, combining Linux engineering, Python automation, security remediation and storage technologies. Work includes CI/CD pipelines, automated testing, system hardening and troubleshooting within complex enterprise environments, with hybrid working in Glasgow.

Ansible · SaltStack · VMware +7

• London
• Senior
• Permanent

Builds greenfield security software that automates pentest workflows and surfaces critical security details about every Amazon application. Works with local and international security teams on scalable, mission-critical systems, rapidly prototyping tools that reduce manual security processes and protect customer data across Amazon's ecosystem.

AWS