Lead Cloud Security Consultant

Company Description

At Quorum Cyber, we're on a mission to help good people win. Founded in Edinburgh in 2016, we're one of the fastest growing cyber security companies in the UK and North America, serving over 400 customers on four continents. We protect organisations against the rising threat of cyber-attacks, enabling them to thrive in an increasingly unpredictable and inhospitable digital landscape. As a Microsoft-only security house, a Microsoft Solutions Partner for Security, a member of the Microsoft Intelligent Security Association (MISA), and winner of the Microsoft Security MSSP of the Year 2025 award, we offer a unified security ecosystem comprised of innovative services, all delivered through our customer platform, Clarity.

In September 2024, Quorum Cyber acquired Canada-based, Microsoft Solutions Partner for Security, Difenda. This was closely followed in December 2024 by the acquisition of US-based, Kivu Consulting, a global cyber security firm with world‑leading incident response capabilities.

To act as the senior technical SME and technical/team lead for customer-facing Professional Services engagements across Microsoft cloud security and XDR managed‑service onboarding. The role leads complex technical delivery, provides design assurance, supports the development of the Cloud Security consulting team, and acts as the technical escalation point for Microsoft Defender XDR, Sentinel, Entra, Azure and Microsoft 365 security work. Resource allocation, utilisation forecasting and overall commercial governance remain led by the Head of Microsoft Security Professional Services, with this role providing technical input and early escalation of risks, blockers and capability gaps.

• Lead complex customer-facing cloud security projects as the technical delivery lead, from discovery, workshops and architecture through implementation, documentation, customer sign-off and transition into managed service.
• Act as the technical authority for cloud security engagements, shaping the technical approach and guiding decisions across design, implementation, risks, dependencies and quality.
• Provide day-to-day technical leadership, coaching and mentoring to Cloud Security Consultants, supporting capability development, consistent delivery standards and confidence with customers.
• Act as the technical escalation point for the Cloud Security team, supporting complex design, implementation and customer-facing challenges.
• Support the Head of Microsoft Security Professional Services with technical input into delivery planning, project risks, capability gaps, team development and delivery quality.
• Lead onboarding readiness assessments and transition-to-service planning for XDR managed-service customers, ensuring integrations, data sources, controls, alerting, handover and acceptance criteria are complete.
• Own or lead technical delivery across Azure, Microsoft 365, Microsoft Defender XDR, Microsoft Sentinel, Microsoft Entra and wider Microsoft security capabilities.
• Design and assure advanced cloud security architectures, governance models and operating models aligned to customer requirements, Microsoft best practice and managed-service delivery.
• Own and quality-review HLDs, LLDs, implementation plans, service transition documents, recommendations and customer-facing deliverables.
• Provide high-value SME input into presales, technical discovery, SoW input, proposal review and shaping of cloud security service offerings.
• Work closely with project managers, SOC, managed services, engineering and customer stakeholders to ensure successful delivery, clean handover and ongoing service operability.
• Drive standardisation and reuse of delivery methods, documentation templates, design patterns and cloud security offerings, while staying current with emerging Microsoft security capabilities, cloud threats, technologies and compliance mandates.

• Deep expertise in Microsoft cloud security, including Azure, Microsoft Defender XDR, Microsoft Sentinel, Microsoft Entra and Microsoft 365 security services.
• Advanced knowledge of the Defender suite, Sentinel architecture, Entra , identity security, cloud workload protection, endpoint security, threat detection and security operations.
• Advanced knowledge of cloud security frameworks and guidance, including CIS, NIST, ISO 27001, Azure Cloud Adoption Framework and Microsoft Cybersecurity Reference Architecture.
• Strong experience designing and implementing IAM, RBAC, Conditional Access, encryption, network security, logging, monitoring, secure Dev Ops and governance controls.
• Expert-level technical project leadership, including leading workshops, shaping the technical approach, managing technical risks/issues, guiding design decisions and driving customer confidence.
• Strong ability to own and quality-assure HLDs, LLDs, SoW technical inputs, implementation plans, project artefacts and service transition documentation.
• Strong coaching and mentoring skills, with the ability to…