Senior Application Engineer - SIEM

Salary: £60,000 - 60,000 per year

Requirements:

• 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
• Experience in support, configuration, and enhancement of security tooling platforms (SIEM, EDR, vulnerability management)
• Experience with log and event management including ingestion, parsing, and correlation of system and security logs
• Experience integrating security tooling with platform, network, and identity services
• Experience providing operational support and tuning of security tooling in live environments
• Experience with application lifecycle management, including deployment, maintenance, upgrades, and decommissioning
• Experience with integration patterns and identity management, including SSO, RBAC, and API integration
• Knowledge of 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
• Experience delivering within secure, enterprise, or defence environments
• Desirable: experience with SIEM / EDR / vulnerability management tools such as Splunk, Trellix, Tenable, or similar
• Desirable: experience with SOAR platforms and automation of security response workflows
• Desirable: experience integrating with monitoring, alerting, and incident response systems
• Desirable: experience with threat detection, analytics, and use case development
• Desirable: experience integrating with enterprise services such as Active Directory and identity platforms
• Desirable: exposure to DevOps / CI-CD practices
• Desirable: experience working in secure or regulated environments

Responsibilities:

• Support, configure, and enhance security tooling platforms (e.g. SIEM, EDR) that underpin threat detection and response
• Deliver engineering tasks within defined work packages, ensuring alignment with user needs, security requirements, and service-level objectives
• Contribute to application architecture, integration, and lifecycle activities under the guidance of senior engineers
• Collaborate with stakeholders across engineering, service management, and business teams to resolve technical issues
• Mentor junior engineers and specialists, supporting their development and promoting best practices
• Participate in continuous improvement initiatives, including automation, documentation, and knowledge sharing
• Ensure compliance with engineering governance, ITSM processes, and cyber security policies

Technologies:

• API
• Active Directory
• DevOps
• Support
• ITIL
• ITSM
• Network
• RBAC
• Security
• Splunk

More:

hackajob is partnering directly with Leonardo to hire for this role. We are offering a salary range of £44,171 - £61,950 under our grade-based salary framework, benchmarked against the external market. This Senior Application Engineer role sits within our Cyber & Security Solutions Division and focuses on delivering, maintaining, and improving platform and systems engineering solutions that underpin critical defence, government and public sector services. The role may involve a blended hybrid working model, and the position will be based at one of our UK sites in Yeovil. We offer a comprehensive, company-funded benefits package that supports wellbeing, career development, and work-life balance, including generous leave with up to 12 additional flexi-days each year, an award-winning pension scheme with up to 15% employer contribution, access to mental health and financial support, free online learning through Coursera and LinkedIn Learning, and flexible benefits such as private healthcare, lifestyle discounts, and gym memberships. We are a global leader in Aerospace, Defence, and Security with over 53,000 people worldwide and 8,500 across 9 UK sites. We are committed to an inclusive, accessible, and welcoming workplace, and we value the contribution our people make to innovation, technology advancement, and global safety.

last updated 35 week of 2026