Senior Application Engineer (SIEM)

Solid experience in supporting, configuring, and enhancing security tooling platforms (e.g. SIEM, EDR, or similar)

Ability to solve moderately complex application-related issues and contribute to secure, scalable solutions.

Understanding of application lifecycle management, integration patterns, and secure-by-design principles.

Strong communication and collaboration skills across engineering and business teams.

A proactive mindset with a passion for continuous improvement and knowledge sharing.

Support, configuration, and enhancement of security tooling platforms (SIEM, EDR, vulnerability management)

Log and event management including ingestion, parsing, and correlation of system and security logs

Integration of security tooling with platform, network, and identity services

Operational support and tuning of security tooling in live environments

Application lifecycle management (deployment, maintenance, upgrades, decommissioning)

Integration patterns and identity management (e.g. SSO, RBAC, API integration)

Secure-by-design principles and application security practices

Technical problem solving and resolution of application-related issues

Collaboration with engineering, SOC, and service management teams

Experience working within security and ITIL-aligned environments

Delivery within secure / enterprise / defence environments

Experience with SIEM / EDR / vulnerability management tools (e.g. Splunk, Trellix, Tenable, or similar)

SOAR platforms and automation of security response workflows

Integration with monitoring, alerting, and incident response systems

Threat detection, analytics, and use case development

Experience integrating with enterprise services (Active Directory, identity platforms)

Exposure to DevOps / CI-CD practices

Experience working in secure or regulated environments

This role is subject to pre-employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) will apply. This role requires Developed Vetting (DV) clearance prior to starting. For more information and guidance please visit: https://careers.uk.leonardo.com/gb/en/security-and-vetting

At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company-funded benefits package that supports your wellbeing, career development, and work–life balance.

Time to Recharge: Generous leave with the opportunity to accrue up to 12 additional flexi-days each year.

Secure your Future: Award-winning pension scheme with up to 15% employer contribution.

Your Wellbeing Matters: Free access to mental health support, financial advice, and employee-led networks.

Never Stop Learning: Free access to 4,000+ online courses via Coursera and LinkedIn Learning.

Tailored Perks: Spend up to £500 annually on flexible benefits such as private healthcare, lifestyle discounts, and gym memberships.

Flexible Working: Flexible hours with hybrid working options.

For a full list of our company benefits please visit our website. Leonardo is a global leader in Aerospace, Defence, and Security. Headquartered in Italy, we employ over 53,000 people worldwide including 8,500 across 9 sites in the UK. Our employees are not just part of a team—they are key contributors to shaping innovation, advancing technology, and enhancing global safety.

At Leonardo we are committed to building an inclusive, accessible, and welcoming workplace. We believe that a diverse workforce sparks creativity, drives innovation, and leads to better outcomes for our people and our customers. If you have any accessibility requirements to support you during the recruitment process, just let us know.

Be part of something bigger - apply now!

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