MICROSOFT CLOUD SECURITY SPECIALIST
Role details
Job location
Tech stack
Job description
We are looking for a Microsoft Cloud Security Specialist to join our Cloud Security practice. In this role, you will design, implement, and secure hybrid environments combining on-premises infrastructure with Microsoft 365 and Azure services.
You will help our clients modernize their environments, adopt best practices in identity and data protection, and strengthen their compliance posture - across both technical and organizational dimensions.
What you will do..
Are you looking to work with the latest technologies and to join a team of passionate people? Then OSB is where you belong. You will…
- Design, deploy, and secure Microsoft hybrid infrastructures (on-premises AD, Exchange, File Servers, Azure AD, Microsoft 365).
- Implement and maintain Zero Trust architectures across identities, endpoints, data, and applications.
- Configure and manage Azure AD / Entra ID, Conditional Access, MFA, PIM, and identity synchronization (Entra Connect).
- Strengthen endpoint security and compliance through Microsoft Intune, Defender for Endpoint, and Security Baselines.
- Manage Exchange (on-premises and Online) environments, hybrid connectors, and mail flow protection.
- Support cloud migration and modernization projects, ensuring hybrid coherence and security alignment.
- Harden infrastructure and enforce Microsoft security best practices.
- Develop and maintain PowerShell automation for security operations, reporting, and configuration management.
- Monitor and investigate security events (Defender portals, audit logs, SIEM integration).
Requirements
Do you have experience in Windows?, * Minimum 5 years' experience administering Microsoft on-premises and hybrid environments.
- Strong expertise in Active Directory, Exchange, File Servers, and endpoint management (Intune, SCCM, WSUS).
- Proven experience with Microsoft 365 / Azure hybridation, Conditional Access, and security governance.
- Hands-on experience with PowerShell, Defender for Cloud / Endpoint, and Intune Security Baselines.
- Solid understanding of Zero Trust, Modern Authentication, and Data Protection., Identity & Access Management Active Directory / Entra ID, Entra Connect, Conditional Access, MFA, PIM, RBAC, hybrid identity design. Infrastructure & Hardening AD DS, GPO, DNS, DHCP, DFS; account/group management; Windows Server hardening and security policies. Messaging & Collaboration Exchange On-Prem and Online, hybrid configuration, mail security (SPF/DKIM/DMARC), anti-phishing, migration from On-Prem to Online. Endpoint Security & Compliance Intune, Defender for Endpoint, update management, compliance policies, MDM/MAM, device reporting, security baselines. Automation & Reporting Advanced PowerShell scripting for administration, compliance, and auditing. Cloud Security & Governance M365 governance, Secure Score, sensitivity labels, IP & DLP, audit logs, Defender for Cloud integration. Monitoring & Incident Response Microsoft 365 Defender portal, Sentinel or equivalent SIEM, alerts triage, investigation and troubleshooting.
Your Background…
- Security-oriented mindset and analytical rigor.
- Autonomy, attention to details, and a structured approach to documentation.
- Ability to communicate clearly and explain technical concepts to both IT and business audiences.
- Curiosity and enthusiasm for Modern Workplace, Cloud Security, and Microsoft ecosystem evolution.
- Good command of technical English (spoken and written) and French; German is an asset.