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Offer summary
(Summary generated by AI based on the full job description)
The project involves consolidating Active Directory estates into a Microsoft Entra ID cloud-only environment. It requires domain migrations, managing Azure AD Connect, implementing Group Policy Objects (GPO) to Intune, and hardening AD security. Key technologies are Active Directory, Entra ID, Azure AD Connect, Intune. Responsibilities include architecture design, migration execution, and documentation creation. The offer includes benefits package, private healthcare, and support for professional growth.
from: 24 June 2026
to: 24 July 2026
salary not specifiedB2B contract (full-time)
salary not specifiedcontract of employment
Offer parameters
level:senior
working mode:remote • hybrid • full office
Białystok, Centrum
Requirements
Expected technologies
Active Directory
Azure AD Connect
Microsoft Entra ID (Azure AD)
Domains Migration
AD security hardening
Group Policy Objects GPO
CIS Benchmarks
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
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
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.
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
- 1.Send your CV
- 2.Talk to us about your expectations
- 3.Learn more about our projects and choose the best
- 4.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.
This is how we work
Senior Entra ID & Active Directory Migration Specialist (f/m/x)
I apply to:
Sii Sp. z o.o.
Białystok, Centrum
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