Senior Entra ID & Active Directory Migration Specialist (f/m/x)

We are looking for an experienced Senior Entra ID & Active Directory Migration Specialist to join our team focused on consolidating a fragmented Active Directory (AD) estate into a single cloud-only Microsoft Entra ID environment. In this role, you will lead the architecture and personally execute domain migrations as part of a phased delivery approach. This position is fully remote, allowing you to work flexibly while contributing to a critical project in the Amsterdam Operations team. If you have a passion for hands-on migration delivery and enjoy working in a dynamic environment, this opportunity may be the right fit for you.

Your tasks

• Leading the discovery and classification of all domains in scope for migration
• Designing the target Entra ID architecture and migration sequence
• Executing domain migrations and decommissioning domain controllers
• Remediating Azure AD Connect Cloud Sync configurations
• Hardening permanently isolated on-prem AD domains
• Implementing service account controls for isolated systems
• Migrating Group Policy Objects (GPOs) to Intune and implementing the Conditional Access baseline
• Delivering knowledge transfer and creating BAU runbooks for internal IT
  
  

Requirements

• Minimum 5 years of experience in Windows administration and Active Directory management
• Demonstrable hands-on experience in delivering domain migrations, not just advisory roles
• Deep expertise in Active Directory, multi-forest environments, and Microsoft Entra ID (Azure AD)
• Strong knowledge of Azure AD Connect, Group Policy Objects (GPO), and CIS Benchmarks
• Experience in AD security hardening and credential management
• Proficiency in creating technical documentation, such as runbooks and architecture documents
• Ability to present technical concepts to steering groups and non-technical stakeholders
• Advanced level of English
  
  

Nice to have

• SC-300 / AZ-305 or equivalent certification
• Experience with air-gapped or OT/ICS environments
  
  

Job no. JOB-KKR3A

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care