Microsoft Security Engineer (Defender / Purview / Entra ID)
Salary: Up to £70,000 + Bonus + Benefits
Location: Central London - Hybrid (3 days per week onsite)
Job Type: Permanent

A globally established organisation is seeking a Microsoft Security Engineer to strengthen its security capability across identity, endpoint, data protection and threat detection.
This role will focus on leveraging the Microsoft security stack, including Defender XDR, Purview and Entra ID, to protect enterprise systems, manage risk and respond to security threats. You will work closely with internal teams to enhance security posture, implement controls and support ongoing improvements across the environment.
Responsibilities for the Microsoft Security Engineer:
*Implement and manage Microsoft Defender XDR across endpoint, identity, email and cloud environments
*Design and maintain Data Loss Prevention (DLP) and Information Protection policies using Microsoft Purview
*Monitor, investigate and respond to security threats, incidents and vulnerabilities
*Configure and manage identity and access controls using Microsoft Entra ID, including Conditional Access and MFA
*Implement and maintain Privileged Identity Management (PIM/PAM) and secure access policies
*Conduct proactive threat hunting and support incident response activities
*Secure cloud applications and endpoints, ensuring alignment with security best practices
*Support eDiscovery, audit and data governance requirements using Microsoft Purview
*Work with internal teams and external partners to improve overall security posture
*Produce documentation, reporting and insights on security performance and risks
Essential Skills for the Microsoft Security Engineer:
*Strong experience working within cybersecurity roles focused on Microsoft security technologies
*Hands-on experience with Microsoft Defender XDR, Microsoft Purview and Entra ID
*Experience implementing DLP, identity security and endpoint protection solutions
*Strong understanding of authentication protocols such as SAML, OAuth and OpenID Connect
*Experience with PowerShell scripting for automation and administration
*Understanding of security frameworks and threat models such as MITRE ATT&CK
*Relevant Microsoft certifications such as SC-200, SC-300 or SC-400
Desirable Skills for the Microsoft Security Engineer:
*CISSP or equivalent security certification
*Strong analytical and problem-solving capability
*Experience working within fast-paced, enterprise environments
*Strong stakeholder communication and collaboration skills
If you are a Microsoft-focused security professional looking to work across Defender, Purview and identity security within a complex enterprise environment, this role offers strong exposure to modern security technologies and the opportunity to make a meaningful impact.

Microsoft Security Engineer (Defender / Purview / Entra ID)