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Senior Security Engineer

Cardiff, Wales, United Kingdom💼 Full-time🗓 2026-03-13 → 2026-07-31

Core

Senior Security Engineer driving adoption of Microsoft Sentinel, managing client onboarding, and developing custom connectors for SIEM tooling within a Managed Security Service Provider.

Role type

Senior IC security engineer (SIEM & Cloud Infrastructure)

Builds

Custom data connectors, SIEM dashboards, and automated cloud infrastructure for client SOC integrations

Domain

Cybersecurity / Managed Security Services / Cloud Infrastructure

Deliverable

production ML models | product features | dashboards & analysis | client delivery | infrastructure

Required skills

Microsoft Sentinel, SIEM management, Infrastructure as Code (Bicep, Terraform), Python, Go, log management, threat detection, dashboard creation, query development

Preferred skills

Splunk deployments

Technologies

Microsoft Sentinel, Azure, Bicep, Terraform, Python, Go, Splunk

Responsibilities

Lead client onboarding processes; Design and manage Sentinel Proof of Concepts; Develop custom data connectors for SIEM integration; Automate cloud infrastructure using IaC; Deploy and optimize Sentinel for security monitoring; Provide technical guidance to junior engineers; Support sales team with project scoping

Seniority

Senior, hands-on IC with mentorship responsibilities

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