Principle IT Security Specialist

Principle IT Security Specialist - London - Hybrid Working £80,000 - £105,000 (dependent on experience) + Equity and BenefitsHelp Build Europe''s Hypersonic CapabilityThis organisation is redefining what''s possible in European defence technology, delivering speed, resilience, and technological independence at a pace that sets a new standard. Operating as a small, elite, and highly capable team, it focuses on solving complex, high-impact problems quickly and effectively.They are seeking an Lead IT Security Specialist to join a talent-dense environment where every individual plays a critical role in shaping both technical direction and organisational capability. This is not a predefined role, it is an opportunity for a high-calibre security professional to take ownership of core security functions, with scope to evolve the position based on their strengths and expertise.The successful candidate will play a key role in strengthening security posture through SIEM ownership, incident response, and system hardening, directly contributing to Europe''s technological sovereignty.The RoleThe IT Security Specialist will:Design, build, and operate a centralised SIEM platform to aggregate and analyse security logs across infrastructure, networks, and applicationsOwn security log analysis, vulnerability management, and incident investigation, including defining baselines and developing alerting rules for critical eventsLead incident response efforts, using log correlation and analysis to ..... full job details .....