Senior Security Engineer

1 week ago

Edinburgh, United Kingdom Quorum Network Resources Full time

Senior Security Engineer | Microsoft Solutions Partner | Edinburgh | Highly Competitive Pay, Performance Bonus + Exceptional Benefits

Strengthen Defences. Hunt Threats. Shape the Future of Cybersecurity.

Are you ready to take your cyber security expertise to the next level? Join Quorum, a leading Microsoft Solutions Partner and Tier 1 CSP based in Scotland. We’re not your average IT consultancy—we’re employee-owned, award-winning, and proud holders of 5 out of 6 Microsoft Designations and 3 Specialisations in Cloud Security, Identity & Access Management, and Microsoft Teams Calling.

Now, we’re growing our Managed Security Services team and looking for a Senior Security Engineer with a passion for proactive threat detection, automation, and innovation.

Why Join Quorum?

Highly competitive salary + Bonus scheme linked to Microsoft accreditations
Flexible holiday buying/selling
Home broadband paid
Private health care & contributory pension
Dedicated technical training budget and development pathways
Award-winning family-friendly and flexible working culture
A genuinely friendly, collaborative team environment with low turnover
What You'll Be Doing:

As a Senior Security Engineer, you'll be a key player in our mission to protect, detect, and respond to evolving cyber threats. Your day-to-day will include:

Leading as an escalation point for cyber incidents and alerts
Integrating threat intelligence into Microsoft Defender and Sentinel
Developing, tuning, and managing detection rules and response policies
Performing threat hunting across client environments
Maintaining and optimising our security tech stack (Defender XDR, Sentinel, Entra ID, Azure, M365)
Onboarding clients to security platforms and managing secure configurations
Supporting internal and client teams with technical reporting and analysis
Mentoring junior engineers and contributing to a culture of continuous improvement
What We’re Looking For:

3+ years in cyber security, ideally within a Managed Service Provider
Deep experience with Microsoft Defender suite (MDE, MDO, MDCA, MDI) and Microsoft Sentinel
Strong knowledge of KQL, Logic Apps, and automation/orchestration tools
Skilled in endpoint, identity, and cloud security
Familiar with Microsoft 365 and Azure security best practices
Excellent communicator—comfortable explaining complex security risks to both tech teams and business leaders
Passion for learning, team mentorship, and staying ahead of cyber threats
Bonus points if you hold certifications such as SC-100, SC-200, CompTIA Security+, or Network+

What’s Next?

If you’re an experienced security engineer who thrives in a fast-paced, supportive environment—and you’re ready to help shape the future of cyber defence for a diverse client base—we want to hear from you.

Apply today and make your next career move your best yet

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