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

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

Miejsce pracy: Białystok

Technologies we use

Expected

• Active Directory
• Azure AD Connect
• Microsoft Entra ID (Azure AD)
• Domains Migration
• AD security hardening
• Group Policy Objects GPO
• CIS Benchmarks

About the project

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 responsibilities

• 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

Our 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

Optional

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

What we offer

• Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
• Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
• We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
• Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
• Comfortable workplace – class A offices or remote work
• Dozens of fascinating projects for prestigious brands from all over the world – you can change them thanks to Job Changer application
• PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
• Investment in your growth – meetups, webinars, training platform and technology blog – you choose
• Fantastic atmosphere created by all Sii Power People

Recruitment stages

• Send your CV
• Talk to us about your expectations
• Learn more about our projects and choose the best
• Start your adventure with Sii!

Sii Sp. z o.o.

Sii is the leading technology consulting, digital transformation, engineering, and business services vendor in Poland. We already employ more than 7 300 professionals and implement projects in a variety of industries for clients from many countries around the world. The Great Place to Work title, won 10 times in a row, proves that at Sii, we create a friendly work environment.

Sii ensures that all employment-related decisions are made solely on the basis of qualifications and competencies. We are committed to equal treatment of all individuals, regardless of any protected characteristics, and promoting a diverse and inclusive work environment.