Senior Security Engineer

Quorum Network Resources; Scotland; On-site; GBP 60,000 - 80,000; Full time

Job summary

Quorum Network Resources seeks a Senior Security Engineer in Edinburgh to strengthen cybersecurity defenses for diverse clients. The candidate will lead incident response, manage detection rules, and mentor juniors, requiring expertise in Microsoft security tools and a passion for proactive threat hunting. Join an employee-owned, award-winning team focused on innovation and development.

Benefits

Highly competitive salary + Bonus scheme

Flexible holiday buying/selling

Home broadband paid

Private health care & contributory pension

Dedicated technical training budget

Family-friendly and flexible working culture

Qualifications

• 3+ years in cyber security, ideally within a Managed Service Provider.
• Deep experience with Microsoft Defender suite (MDE, MDO, MDCA, MDI) and Microsoft Sentinel.
• Excellent communicator comfortable explaining complex security risks.

Responsibilities

• 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 security tech stack (Defender XDR, Sentinel, Azure, M365).
• Onboarding clients to security platforms and managing secure configurations.
• Supporting internal and client teams with technical reporting and analysis.
• Mentoring junior engineers.

Skills

Microsoft Defender suite

KQL

Logic Apps

Automation/Orchestration tools

Endpoint security

Identity security

Cloud security

Job description

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.