Senior Security Engineer

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.