Senior Cyber Security Engineer

Senior Cyber Security Engineer

Managed Security Services | Fully Remote (UK) | £60,000 + Benefits

We are partnering with a fast-growing managed security services business to appoint a Senior Cyber Security Engineer into a high-impact, fully remote role. This is an opportunity to own detection engineering and automation across Microsoft security technologies in a client-facing environment, with real scope to shape how services scale.

You will take ownership of two core areas: customer-facing Microsoft Sentinel delivery and internal automation at scale across Azure and Microsoft 365 environments. The successful person will be trusted to design, improve and standardise security outcomes, rather than simply operate existing tooling.

The role

• Lead Microsoft Sentinel deployments from requirements gathering through to build, tuning and rollout
• Develop and refine detections using KQL, analytics rules and automation to reduce false positives and improve response quality
• Own PowerShell and Azure automation that deploys security configurations and CIS-aligned baselines across customer tenants

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• Deliver scoped security configuration work across Defender, Entra, Intune and Purview
• Write clear SOPs and act as the technical SME in customer conversations

What we are looking for

• Strong hands-on experience with Microsoft Sentinel in a delivery or engineering capacity
• Strong PowerShell scripting and automation capability
• Good knowledge of the Microsoft 365 security stack
• Ideally a background in MDR, SOC engineering, MSSP or another multi-client cyber environment
• Someone who enjoys ownership, continuous improvement and solving problems properly

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Package and benefits

• Fully remote role, UK-based
• £60,000 salary
• Flexitime, company pension, and work-from-home support
• Eligibility for a planned Employee Share Ownership Plan (ESOP) once finalised
• DBS screening required; SC clearance or eligibility would be advantageous

If you want a role where you can genuinely influence detection, automation, and customer outcomes in a modern Microsoft security environment, click apply or reach out to Matthew.Lannen@infosecpeople.co.uk