Cybersecurity Infrastructure Engineer

Technology, Data & Digital · IT Infrastructure & Security · Cybersecurity · Systems Engineering

In short

As a Cybersecurity Infrastructure Engineer with Microsoft's Detection and Response Team (DART), you will be responsible for leading infrastructure recovery and identity containment during security incidents. This remote role involves working with customers to restore operations, ensure security, and build resilience against cyber threats.

Responsibilities

Lead and support evidence-driven infrastructure response, identity recovery, and technical hardening workstreams across enterprise on-premises and cloud environments.
Set infrastructure recovery objectives, technical priorities, and evidence requirements for identity, directory, privileged access, and enterprise infrastructure workstreams.
Lead or support containment and recovery for compromised Active Directory, Entra ID, Tier 0, and hybrid infrastructure environments.
Assess compromise scope, recovery readiness, trust relationships, privileged access pathways, and security-control gaps.
Direct or guide technical response activities balancing containment, recovery urgency, evidence preservation, and customer business constraints.
Collect, preserve, and analyze infrastructure and identity evidence.
Serve as a technical point of contact for infrastructure recovery, briefing customer technical teams, executives, and internal stakeholders.
Maintain technical documentation and clear handovers covering evidence, decisions, risks, dependencies, and next actions.

Requirements

A relevant degree in Computer Science, Computer Security, Statistics, Mathematics or a related field, or equivalent practical experience in cybersecurity, infrastructure engineering, incident response or related operations, and of industry experience.
Demonstrated hands-on experience with Active Directory, Entra ID or other enterprise identity platforms in complex enterprise environments.
Understanding of identity-related attack techniques.
Experience supporting identity recovery, infrastructure recovery, and post-breach hardening decisions under operational pressure.
Familiarity with Windows Server infrastructure, DNS, DHCP, Group Policy, privileged access, and hybrid identity dependencies.
Ability to script or automate recovery, validation or analysis tasks using PowerShell or similar tools.
Demonstrated ability to explain technical findings, dependencies, risk, and residual uncertainty clearly to customers and internal stakeholders.
Flexibility to work non-standard business hours that may include evening, nighttime, weekends and/or holidays.
Ability to obtain Security Check (SC) or Developed Vetting (DV) clearance as issued by the United Kingdom Security Vetting Unit (UKSV).

Desired Qualifications

Experience in cybersecurity incident response, digital forensics, threat hunting or enterprise recovery.
Familiarity with Microsoft Defender XDR, Microsoft Sentinel, Entra ID, Microsoft Graph, Azure, Windows security eventing and third-party SIEM/SOAR or EDR platforms.
Experience leading infrastructure workstreams in high-pressure, customer-facing incident response while balancing investigation, containment and recovery needs.
Demonstrated ability to translate technical constraints into practical response plans and executive-ready recommendations.
Relevant security, identity, cloud or incident response certifications, or equivalent practical expertise.
Demonstrated research, analytical automation, data-quality improvement or technical mentoring that strengthens infrastructure response capability.

Benefits

Certain roles may be eligible for benefits and other compensation.
Find additional benefits and pay information here: https://careers.microsoft.com/v2/global/en/corporate-pay/united-kingdom-corporate-pay.html

Skills

PowerShellActive DirectoryEntra IDWindows ServerDNSDHCPMicrosoft Defender XDRMicrosoft SentinelMicrosoft GraphAzure

#security#cybersecurity#incident response#infrastructure#identity

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