SIEM Architect

7 days ago

MarlowBuckinghamshire United Kingdom iomart Full time £60,000 - £90,000 per year


What you'll be doing:

You'll be at the heart of designing, enhancing, and maintaining our scalable Microsoft Sentinel platform and other Microsoft security technologies. From developing data connectors and automation workflows to tuning detection rules, you'll ensure our SIEM infrastructure is high-performing, compliant, and aligned with evolving threat landscapes.

Working closely with SOC analysts, cloud teams, and incident responders, you'll architect tailored use cases, build automated playbooks, and continuously improve incident response through orchestration. Your strategic input will help shape our security roadmap and drive innovation in detection engineering.

This role is ideal for someone passionate about automation, security, and staying ahead of industry best practices.



We want to hear from you if you:

  • Have proven experience architecting and managing Microsoft Sentinel 
  • Have a strong understanding of Microsoft Defender suite (Defender for Endpoint, Identity, Cloud, etc.).
  • Are proficient in KQL (Kusto Query Language) and Azure Logic Apps.
  • Have experience with security automation and orchestration tools (SOAR).
  • Are familiarity with MITRE ATT&CK framework and threat detection methodologies.
  • Scripting skills (PowerShell, Python) for automation and integration.


What's in it for me?

£competitive salary + benefits



Who you'll be doing it for:

Atech part of the Iomart Group is a highly accredited Microsoft Partner who delivers transformed technology with managed services. Our team of certified Microsoft experts align with your team to deliver an excellent service tailored to your individual needs, 24/7/365.

Our services support 25,000 users globally and proactively monitor 45,000+ devices in key areas:

  • Azure infrastructure managed service
  • Modern Workplace: Office 365, Microsoft 365, and Azure Virtual Desktop
  • Managed Security and SOC with Microsoft Defender, Sentinel


What to do next:

Please click apply if you like the sound of this. If you do not have an up to date CV or want to have a chat about the role first, please contact us on

We're an equal opportunities employer and want our vacancies to be available to all, so if you need us to make any reasonable adjustments during the process then just let us know.


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