Senior Security Engineer

Ready to lead complex security operations, shape detection strategy, and be the go to expert for Microsoft Sentinel and Defender XDR? Join my international client and take ownership of advanced engineering, threat hunting, and incident response in a modern, cloud-first environment.

My client is an international Consultancy firm, specialist in Cyber Security and looking for a Senior Security Engineer to take a lead role in advanced engineering work for SIEM and XDR, escalated security incident response, and advanced threat hunting.

What this job is really about

Owning Microsoft Sentinel and Defender XDR so they work for you, not the other way round: shaping the data, the rules, the playbooks, and the signal to noise ratio.

Being the L3 brain in the room when things go sideways: complex incidents, odd behaviours, multi cloud weirdness - you investigate, correlate, and close.

Turning threat hunting into a habit, not a once a month exercise: building KQL hunts, mapping to MITRE ATT&CK, and turning "interesting patterns" into hardened detections.

Making the SIEM/XDR bill make sense: understanding ingestion, licensing, and where to cut noise without cutting visibility.

Who this will suit

You've already run security operations with Microsoft Sentinel and the Defender suite and understand how to onboard and manage log sources properly.

You're comfortable designing security architecture in Azure/M365, integrating cloud native controls, and wiring in threat intel.

KQL is second nature; PowerShell or Python are tools you reach for without thinking.

You're happy explaining trade offs between cost and coverage and backing it up with data.

You can mentor others, push back when needed, and stay calm in the middle of a messy incident.

Experience leading or coaching SOC teams or security engineers.

Robert Walters Operations Limited is an employment business and employment agency and welcomes applications from all candidates.

About the job

Contract Type: Permanent

Focus: Information Security

Workplace Type: Hybrid

Experience Level: Mid Management

Location: Manchester

Salary: £70,000 - £90,000 per annum + bonus

Job Reference: EWHQGJ-1664CCD2

Date posted: 10 February 2026