Salary: £109,500 - 146,100 per year Requirements: Active MOD DV clearance required Must be a sole British National Advanced proficiency in Splunk (Enterprise & ES) Strong skills in SPL for correlation searches, data models, and notable events Experience with TA/TAF configuration and source type normalization Familiarity with KV store, summary indexing, and search head clustering Hands-on experience with Elastic Stack / Elastic Security Knowledge of index lifecycle management, ingest pipelines, and ECS mapping Proven ability to design and tune detection rules (KQL, EQL) Excellent analytical and problem-solving skills Strong client management and relationship-building experience Experience operating security tools in production environments Broader experience across Automation, IaaC and technical operations is desirable Responsibilities: Lead the design, documentation, and installation of security monitoring tools/platforms Provide data to the Security Operational Centre (SOC) for analysis Collaborate with cross-functional teams to assess risks and design controls Define testing requirements for security systems Ensure correct tooling is operational to protect and monitor clients Assess complex situations to identify risks and recommend effective solutions Technologies: Support Security Splunk More: We are a leading security solutions provider located in Hemel Hempstead, looking for a dedicated Security Engineer to join our dynamic team. In this role, you will play a key part in ensuring the security and monitoring of our clients through the implementation of advanced tools and systems. We foster a diverse and inclusive community and value every individuals contribution. Our success is driven by our people, and we are committed to providing reasonable adjustments to support all candidates during the recruitment process. last updated 5 week of 2026