Senior Microsoft 365 & Security Collaboration Engineer

Onepoint; Zele; On-site; EUR 60,000 - 90,000; Full time

Job summary

Onepoint is looking for an experienced Microsoft 365 Administrator to drive the firm’s M365 ecosystem across SharePoint Online, OneDrive, Teams and Copilot. You will own Identity and Access Management, perform advanced troubleshooting, and strengthen security and compliance in line with CIS, NIS2 and ISO standards.

You will support Citrix/VDI environments, collaborate with engineers and architects on deployments and migrations, and document best practices while coaching colleagues in adopting AI

Qualifications

• 5+ years hands-on experience across the Microsoft 365 ecosystem including SharePoint Online, Entra ID, Exchange Online, Teams, OneDrive and Intune
• Strong PowerShell capabilities for administration, automation and environment management
• Solid security and cyber-resilience mindset covering Conditional Access, least privilege, external sharing, guest access, and data protection
• Coaching experience and ability to transfer knowledge to colleagues and stakeholders
• Good level of English and Dutch

Responsibilities

• Microsoft 365 administration and continuous improvement of the ecosystem (SharePoint, OneDrive, Teams, Copilot) ensuring security, efficiency, and proper configuration
• Identity and Access Management
• Advanced troubleshooting and incident resolution for L2/L3 issues with root-cause analysis and long-term corrective actions
• Security and compliance reinforcement aligned with CIS benchmarks, NIS2, ISO standards, and cybersecurity objectives
• Support for virtual workspace environments using Citrix-based infrastructures or equivalent VDI platforms
• Project delivery and cross-functional collaboration with engineers and architects
• Documentation and knowledge sharing through technical documentation and best-practice sharing
• Coaching colleagues on M365 usage and adoption of Copilot and AI tools

Skills

Microsoft 365

SharePoint Online

Entra ID

Exchange Online

Teams

OneDrive

Intune

PowerShell

Security mindset

Coaching

English and Dutch proficiency

Job description

Onepoint is looking for an experienced Microsoft 365 Administrator to drive the firm’s M365 ecosystem across SharePoint Online, OneDrive, Teams and Copilot. You will own Identity and Access Management, perform advanced troubleshooting, and strengthen security and compliance in line with CIS, NIS2 and ISO standards.

You will support Citrix/VDI environments, collaborate with engineers and architects on deployments and migrations, and document best practices while coaching colleagues in adopting AI