📍 100% Remote (EU) | 💼 B2BAboutWe are looking for an experienced Windows System Administrator who will take responsibility for managing, securing, and maintaining Windows Server environments in enterprise-scale infrastructures.You’ll work with Active Directory, Group Policies, WSUS, and Microsoft Defender ATP, ensuring system stability, patch compliance, and security hardening in line with CIS standards.Responsibilities Manage and optimize Active Directory (AD) and Group Policy Objects (GPOs). Handle WSUS for updates, patching, and driver management. Configure and maintain Microsoft Defender ATP (cloud) with application control and WDAC. Implement CIS-based hardening for Windows clients and servers. Create and document PowerShell scripts for automation and configuration. Participate in incident, problem, and release management according to ITSM standards. Support system maintenance and change-based development in CRITIS (critical infrastructure) environments. Contribute to automation and deployment pipelines and take part in on-call rotations for 24/7 operations. Our offer Competitive salary on B2B contract Fully remote position Real impact and independence at work Individual career path Work-life balance A non-corporate atmosphere where innovation, personal growth, and teamwork thrive 100+ smart, curious & ambitious engineers What you bringMust-have: 5+ years of practical experience with:

Active Directory (AD) and Group Policy Objects (GPO) design and management WSUS configuration and patch management MS Defender ATP, WDAC, and CIS hardening

PowerShell scripting and documentation

Nice-to-have: Degree or certification in IT or engineering Experience with ITSM processes (incident, problem, release management). Knowledge of automation and deployment pipelines. Experience working in CRITIS / 24x7 environments. Benefits International Projects Small Teams Flat Structure Friendly Atmosphere Flexible Hours Individual Career Path We want your TALENT! Don’t hesitate and APPLY! We are happy to tell you more details about this position in a phone call.Our recruitment process is very fast and straightforward to ensure a great experience from the first interview to joining your dream team!