Senior M365 System Administrator (m/f/d)

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As a Senior M365 System Administrator (m/f/d), you will own the administration, security, and governance of Microsoft 365 collaboration services - SharePoint Online, OneDrive for Business, Microsoft Teams, and Microsoft 365 Copilot - across the enterprise. You will partner with Identity, Security, Compliance, and Infrastructure teams to implement access controls, data protection, and platform standards; lead automation and migration initiatives; and act as the senior technical escalation point and mentor for Level 1/2 support.

How you create impact

• Administer and govern Microsoft 365 collaboration tools, including SharePoint Online, OneDrive for Business, Microsoft Teams, and Microsoft 365 Copilot, covering adoption and usage oversight.
• Design and implement platform security and governance controls: permissions and sharing policies, conditional access alignment, sensitivity labels, DLP, and retention policies, in partnership with Security and Compliance teams.
• Assess the collaboration impact of Microsoft Entra configurations, including Microsoft 365 Groups, B2B guest access, application permissions, Conditional Access, and authentication dependencies.
• Monitor platform health, performance, compliance posture, and governance risks, including permission drift, unmanaged sharing, inactive and ownerless workspaces; coordinate remediation activities with workspace owners and relevant control functions.
• Evaluate requirements and recommend configurations, guiding stakeholders on integrating third-party and custom solutions into the M365 ecosystem.
• Perform advanced troubleshooting and root-cause analysis for complex, cross-team incidents, collaborating with Infrastructure, Cloud, Security, and Application teams.
• Act as a technical mentor and escalation point for Level 1/2 teams, maintaining technical documentation, operational runbooks, configuration standards, architecture diagrams, knowledge base content, and providing coaching and knowledge transfer to strengthen team capability.
• Review Microsoft Message Center and roadmap changes, assess technical and operational impact, coordinate testing, and support stakeholder communications. Manage escalation to Microsoft and third-party suppliers when platform incidents or defects require vendor involvement.

What we would like you to bring

• Deep, hands-on experience administering Microsoft Teams, SharePoint Online, and OneDrive for Business: architecture, governance, and day-to-day operational support.
• In-depth understanding of the content collaboration and productivity landscape within M365, with a platform-ownership mindset and strong attention to detail.
• Working knowledge of Microsoft Entra ID as it relates to collaboration services, including groups, guest identities, enterprise applications, app registrations, RBAC, application permissions, authentication, and Conditional Access dependencies.
• Expert-level PowerShell scripting for automation, reporting, and enterprise-scale migration tasks, using tools such as PnP.PowerShell and the Microsoft Graph PowerShell SDK, with working knowledge of CI/CD concepts and tooling such as Git and DevOps as applied to platform automation.
• Fluent in spoken and written English. Clear, confident communication across technical and non-technical audiences.
• Proven ability to mentor engineers and act as a technical escalation point across teams.
• Comfortable operating with autonomy and making architecture/configuration decisions within governance guardrails.
• Additional hands-on experience across the broader Microsoft 365 and Azure ecosystem, including managing Microsoft Teams Rooms, operating within a multi-geo and/or multi-tenant organization, managing data lifecycle Microsoft Purview features, Azure Automation, Azure Functions, and Logic Apps, is a plus. Relevant Microsoft certifications, such as MS-102, MS-700, SC-401, or equivalent, and an interest in continued certification are also considered an advantage.

What's in it for you

You will have a direct influence on the future of logistics and IT. Your colleagues are experts who shape the IT industry in Portugal and worldwide. We want you to feel comfortable in your working surroundings. Therefore, we are offering you flexible working hours and mobile working arrangements. We value teamwork, continuous learning, and diversity. Kuehne+Nagel offers you a custom-made career – through individual planning and supervisors who support and advise you in every way. You get supported by many work-life balance offerings and supplementary health insurance.