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Vattenfall Logo Vattenfall · IT - Administration

Technical Expert Active Directory

Poland, Katowice · Job Posted May 15, 2026
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Job Description

As a Technical Expert Active Directory, you will operate and develop Vattenfall's core identity services, including Active Directory, Azure AD, authentication services, remote access solutions and certificate services. You will be responsible for operational stability, incident resolution (as 3rd-level support), implementing complex changes, and improving services through problem management. You will work across both traditional infrastructure and cloud services, supporting secure onboarding of applications and playing a key role in enabling modern authentication technologies such as Conditional Access, OAuth and SAML.

Job Responsibility

  • Handling incidents as 3rd-level engineer, ensuring service stability and fast recovery
  • Analyzing root causes and support problem management to improve long-term service quality
  • Managing capacity, identify bottlenecks and report risks
  • Installing, configuring and testing new releases, patches and upgrades (software & hardware lifecycle)
  • Driving approved changes following Vattenfall's change management processes
  • Taking part in projects from request to operational handover
  • Ensuring secure authentication for Microsoft 365 and cloud services using Azure AD and Conditional Access
  • Operating and maintain secure authentication environments based on a tiering model
  • Supporting integration of authentication and authorization for internal and cloud solutions
  • Automating administrative tasks using PowerShell

Requirements

  • A background in IT, engineering, mathematics or a similar technical field
  • Knowledge of Active Directory, Azure AD and Windows Server infrastructure
  • Understanding of networking fundamentals (firewalls, security zones, encryption)
  • Solid PowerShell scripting skills
  • Interest in IT security and identity management
  • Strong communication skills and ability to build trust
  • Knowledge of ITIL processes and IT security
  • Advanced English language skills (technical English included)
  • Ability to work collaboratively with cross-functional teams
  • (Required for specific work areas) Ability to obtain Swedish national security vetting level 1 or level 2

Nice to have

Microsoft certifications such as MSCA/E, M365 Enterprise Administrator Expert

What we offer

  • Good remuneration
  • A challenging and international work environment
  • Possibility to work with some of the best in the field
  • Working in interdisciplinary teams
  • Support from committed colleagues
  • Attractive employment conditions
  • Opportunities for personal and professional development
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