Senior Cyber Security Engineer - Hybrid in Cheshire, Warrington

Senior Security Engineer - Monitoring & Detection ?? Hybrid Working (Bristol, London, Manchester or Swansea) ?? £Join a Team Protecting Critical Digital Services We're looking for an experienced Senior Security Engineer - Monitoring & Detection to play a key role in securing large-scale, cloud-based environments supporting critical public sector and government services. This is a hands-on engineering role focused on threat detection, SIEM engineering, security monitoring, log management, and SOC optimisation . Working alongside SOC analysts, engineers, architects, and stakeholders, you'll help build modern security monitoring capabilities that improve resilience while enabling faster, risk-based decision-making. Detection Engineering & Threat Monitoring Continuously improve detection quality by analysing alert fidelity, false positives, and operational effectiveness. Validate detections through testing, simulation exercises, and red-team scenarios. Security Data & Log Engineering Manage and optimise log ingestion pipelines to ensure high-quality, actionable security data. Improve data efficiency through deduplication, data reduction, and flow summarisation techniques. Support cloud-native data streaming and storage solutions. Ensure security data aligns with industry standards such as OCSF while maintaining strong encryption and access controls. Translate complex technical risks into clear business-focused recommendations. Mentor junior engineers and contribute to the growth of the wider cyber security function. Strong hands-on experience within Security Operations, Detection Engineering, Threat Detection, or Security Monitoring. Experience securing cloud environments across AWS, Azure, or GCP. SIEM content development and tuning Strong understanding of modern security principles including Zero Trust, identity-first security, secrets management, and network segmentation. Experience with Cribl and security data pipeline management. Understanding of OCSF and security data normalisation. Experience mentoring or leading engineers within a SOC or cyber security function. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. If you need any help or adjustments during the recruitment process for any reason , please let us know when you apply or talk to the recruiters directly so we can support you.