Responsibilities :

• Design, implement, and enhance Active Directories (AD) and Cloud Directories (Entra ID and 21Vianet). 

• Serve as a technical expert for authentication and authorization services, group policies and related Microsoft ecosystem components. 

• Provide advanced troubleshooting and third-level support for complex issues across global environments. 

• Collaborate closely with other architects, engineers, project managers and product owners in a global team setup. 

• Participate in lifecycle management, including updates, patching, migrations, and system hardening. 

• Document configurations, solution designs, and operational procedures. 

• Contribute to ongoing process improvements, automation, and optimization. 

• Create architectural blueprints, diagrams, and documentation. 

• Identify risks and provide mitigation strategies. 

• Promote innovation and continuous improvement within the technology landscape and provide technical leadership. 

• Share knowledge and best practices while interacting and building consensus across business and technical areas and teams. 

• Apply and adapt known tools/solutions after detailed analysis and sometimes develop creative approaches to solve problems which are typically undefined and unexpected. 

• Resolve topics with focus on efficiency or operational excellence and take new perspectives. 

• Influence strategic decisions within the product scope. 
  
  
  

Requirements 

Required Qualifications :

• Completed university degree in Business IT, Business Economics, Business SCM, Information Science, Engineering or Natural Science (Bachelor) with at least five years of professional experience in: 

• Active Directory administration 

• Windows Server environments (2016/2019/2022/2025) 

• Solution architecture or infrastructure design 

• Troubleshooting complex enterprise environments 

• Second-level or third-level support roles 

• Strong understanding of identity and access management, security principles, and best practices. 

• Experience working in global or distributed teams with cross‑functional collaboration. 

• Proficiency with scripting tools (e.g., PowerShell) for automation and operational tasks. 

• Excellent communication skills in English. 
  
  

Preferred Qualifications :

• Windows Server–based infrastructure solutions. 

• Experience with Azure AD / Entra ID, hybrid identity, or cloud‑based identity services. 

• Familiarity with ITIL processes (Incident, Change, Problem Management). 

• Knowledge of virtualization (Hyper‑V, VMware), networking fundamentals, or enterprise monitoring tools. 

• Experience with Linux-based Operating Systems.