About the mission
The role is for a Senior Microsoft 365 Security Specialist/Engineer to support the implementation of a Zero Trust approach, focusing on Identity and Apps. Key responsibilities include providing operational support and experience with Office 365, security governance, and Agile methodologies.
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Overview
We are looking for temporary reinforcement in the form of an experienced Microsoft 365 Security Specialist/Engineer to support the implementation of our Zero Trust approach. We are guided by the Rapid Modernisation Plan. The assignment mainly focuses on the domains of Identity and Apps (including Entra ID, Conditional Access, app access and security).Key Responsibilities
Demonstrable experience with Office 365
Demonstrable experience in the implementation of Office 365 environments and experience in supporting the rollout and management of Office 365.
Demonstrable experience in programming tasks can be performed very smoothly: coding, testing and debugging.
Demonstrable experience in providing operational support, user support, documenting procedures and manuals, monitoring services.
Demonstrable knowledge and experience of Agile development methodology.
Skills & Experience
Demonstrable experience with Entra ID
Demonstrable experience with Office 365
Demonstrable experience with security governance in M365 environment
Demonstrable experience in developing security policy framework in M365 environment
Demonstrable knowledge of Powershell
Holder of certificate SC 300 (Identity and Access Administrator Associate) or MS 102 (Microsoft 365 Administrator)
Demonstrable experience in the implementation of Office 365 environments and experience in supporting the rollout and management of Office 365.
Demonstrable experience in providing operational support, user support, documenting procedures and manuals, monitoring services.
Demonstrable experience in programming tasks can be performed very smoothly: coding, testing and debugging.
Demonstrable experience with conditional access (Zero Trust implementation)
Demonstrable experience with managing IDP (Identity Provider)
Demonstrable experience with IAM
Demonstrable experience with Purview
Demonstrable knowledge and experience of Agile development methodology.
Languages
Language requirement: Dutch at European CEFR level C2.
Additional Info
Received on: 25/02/2026
Latest reaction date: 04/03/2026
Preferred start date: 01/04/2026
Preferred end date: 30/09/2026
Number requested: 1
Assignment type: Framework contract 2022 - 2027 (Lot 1)
Cost center: -
Working hours: Day
Estimated number of hours per person: 800
Employment regime (percentage): 20
Remote work possible: Yes
Candidate weighting: 50% quality - 50% price.
What you'll do
- Demonstrable experience with Office 365
- Demonstrable experience in the implementation of Office 365 environments and experience in supporting the rollout and management of Office 365.
- Demonstrable experience in programming tasks can be performed very smoothly: coding, testing and debugging.
- Demonstrable experience in providing operational support, user support, documenting procedures and manuals, monitoring services.
- Demonstrable knowledge and experience of Agile development methodology.
What we're looking for
- Demonstrable experience with Entra ID
- Demonstrable experience with Office 365
- Demonstrable experience with security governance in M365 environment
- Demonstrable experience in developing security policy framework in M365 environment
- Demonstrable knowledge of Powershell
- Holder of certificate SC 300 or MS 102
- Demonstrable experience in the implementation of Office 365 environments
- Demonstrable experience in providing operational support
- Demonstrable experience in programming tasks
- Demonstrable experience with conditional access
- Demonstrable experience with managing IDP
- Demonstrable experience with IAM
- Demonstrable experience with Purview
- Demonstrable knowledge and experience of Agile development methodology
Skills
- Office 365
- Entra ID
- Powershell