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Senior Microsoft Security Specialist

Job Description - Senior Microsoft Security Specialist

Senior Microsoft Security Specialist – 6-Month Contract

Location: Johannesburg / Gauteng
Workplace: Hybrid
Contract: 6 Months
Industry: Technology / Cybersecurity

An exciting 6-month contract opportunity is available for an experienced Senior Microsoft Security Specialist to join a leading technology environment.

We are looking for a senior security professional with extensive hands-on experience across the Microsoft security ecosystem, including Microsoft 365, Azure, Microsoft Defender, Sentinel, Entra ID, Intune and hybrid infrastructure environments.

The successful candidate will act as a senior technical authority, driving security posture improvements, cyber resilience, governance and technical security initiatives while serving as a high-level escalation point for complex Microsoft security matters.

Key Responsibilities

  • Own and manage the organisation's overall Microsoft security posture.
  • Lead the design, implementation, optimisation and governance of the Microsoft E5 Security stack.
  • Establish security standards, baselines, policies and operational procedures for Microsoft platforms.
  • Develop strategic roadmaps to improve Microsoft security capability maturity.
  • Lead the administration and optimisation of the Microsoft Defender ecosystem, including Defender for Endpoint, Office 365, Identity, Cloud Apps, Cloud and XDR.
  • Implement advanced threat protection controls and drive proactive threat hunting and detection improvements.
  • Own and manage the Microsoft Sentinel platform, including detection rules, analytics, workbooks, automation playbooks and threat-hunting capabilities.
  • Integrate Microsoft and third-party security data sources into Sentinel and improve security monitoring maturity.
  • Manage and secure Microsoft 365 services including Exchange Online, SharePoint Online, OneDrive, Teams and Power Platform.
  • Implement and maintain DLP, Information Protection, Sensitivity Labels, Retention Policies and Insider Risk Management controls.
  • Lead administration and security of Microsoft Entra ID (Azure AD).
  • Design and implement Conditional Access, PIM, Identity Protection, MFA, Passwordless Authentication, SSO and RBAC.
  • Conduct access reviews and privileged account governance while implementing Zero Trust security principles.
  • Design and implement security controls across Azure environments.
  • Manage Azure security governance, including Azure Policy, Landing Zones, subscription governance and resource governance.
  • Secure cloud workloads, networking, storage and platform services.
  • Own the organisation's Microsoft Intune and SCCM/MECM co-management environment.
  • Manage endpoint security policies, MDM, MAM, device compliance and configuration management.
  • Lead endpoint patch management and vulnerability remediation activities.
  • Drive continuous improvement of Microsoft Secure Score and overall cyber maturity.
  • Conduct security assessments, reviews, gap analyses, control effectiveness assessments and vulnerability reviews.
  • Develop and execute remediation plans for identified security weaknesses.
  • Act as an L3/L4 escalation point for critical and complex security incidents.
  • Lead technical investigations involving Microsoft 365, Azure, identity, endpoint compromises, insider threats and advanced persistent threats.
  • Coordinate containment, eradication, forensic investigation and recovery activities during major cyber incidents.
  • Produce root cause analyses and post-incident recommendations.
  • Review and approve security designs for projects impacting Microsoft cloud and hybrid platforms.
  • Provide security sign-off for platform-related changes and initiatives.
  • Maintain architecture decision records and security control documentation.
  • Provide technical leadership, coaching and mentorship to junior security specialists and operational teams.
  • Promote security best practices and a security-first culture across technology teams.

What We Are Looking For

The ideal candidate will have:

  • A Bachelor's Degree in Information Technology, Computer Science, Cybersecurity, Engineering or a related field.
  • Relevant Microsoft security certifications.
  • Minimum 8–10 years of IT infrastructure and security experience.
  • Minimum 5 years of hands-on Microsoft Security experience.
  • Proven experience managing Microsoft E5 Security environments within large enterprise organisations.
  • Extensive experience with Microsoft Sentinel and Microsoft Defender technologies.
  • Strong experience securing hybrid cloud environments.
  • Hands-on experience with Intune and SCCM/MECM co-management environments.
  • Experience leading major incident response and forensic investigations.
  • Proven experience developing security standards, governance frameworks and operating models.
  • Experience mentoring technical teams and operating as a senior escalation point.
  • Strong analytical, problem-solving and decision-making abilities.
  • Excellent stakeholder management, communication and presentation skills.

Technical Skills

  • Microsoft Defender XDR
  • Defender for Endpoint
  • Defender for Office 365
  • Defender for Identity
  • Defender for Cloud Apps
  • Defender for Cloud
  • Microsoft Sentinel
  • Microsoft Purview
  • Microsoft Secure Score
  • Microsoft Entra ID
  • Conditional Access
  • MFA and SSO
  • Privileged Identity Management (PIM)
  • Identity Protection
  • RBAC
  • Microsoft Intune
  • SCCM / MECM
  • Windows Autopilot
  • Patch Management
  • Application Packaging and Deployment
  • Azure Security
  • Azure Policy
  • Azure Landing Zones
  • Cloud Governance and Compliance
  • Cloud Workload Protection
  • Security Architecture
  • Incident Response
  • Threat Hunting
  • SIEM and SOAR
  • Vulnerability Management
  • Security Monitoring
  • Digital Forensics

Preferred Certifications

  • Microsoft Certified: Cybersecurity Architect Expert (SC-100)
  • Microsoft Certified: Security Operations Analyst Associate (SC-200)
  • Microsoft Certified: Identity and Access Administrator Associate (SC-300)
  • Microsoft Certified: Information Protection Administrator Associate (SC-400)
  • Microsoft Certified: Azure Security Engineer Associate (AZ-500)
  • Microsoft Certified: Azure Administrator Associate (AZ-104)
  • CISSP
  • CISM
  • CCSP
  • CompTIA Security+

Key Competencies

  • Strategic security leadership
  • Advanced problem-solving
  • Security architecture and design
  • Incident management
  • Risk assessment
  • Stakeholder management
  • Decision-making
  • Communication and presentation
  • Coaching and mentorship
  • Governance and compliance management
  • Continuous improvement
  • Strong analytical skills

Success Measures

Success in this role will be measured through:

  • Improvement of Microsoft Secure Score.
  • Reduction in security vulnerabilities and exposure risks.
  • Improved Microsoft Sentinel detection and incident response capabilities.
  • Successful implementation of Microsoft security roadmap initiatives.
  • Improved endpoint compliance and patch management effectiveness.
  • Effective incident response and resolution outcomes.
  • Increased adoption of security governance standards.
  • Overall improvement in the organisation's Microsoft cloud security maturity.

Contract Details

This is a 6-month hybrid contract position based in Johannesburg, with an opportunity to work across a dynamic enterprise technology and cybersecurity environment.

If you are a senior Microsoft security professional with strong hands-on technical expertise, enterprise security experience and the ability to lead complex security initiatives, we would like to hear from you.

Apply now to be considered for this opportunity.

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