Senior IT Administrator

Promise Group is a trusted Microsoft Partner delivering technology solutions in cloud, AI, security, modern workplace, data, and infrastructure across CEE, the Baltics, SEE, and CCA markets. The company values collaboration, responsibility, trust, and proactive improvement in an international environment.

• Minimum 4 years professional experience in IT infrastructure administration.
• Strong hands-on experience with Active Directory / ADDS.
• Practical experience with SCCM, especially software deployment, imaging, and patch management.
• Experience with backup solutions, preferably Veeam and/or Synology.
• Experience administering RDS.
• Experience with Microsoft Defender for Endpoint.
• Good knowledge of Windows Server and Microsoft 365 administration.
• Experience with Intune and endpoint management.
• Good understanding of networking concepts: DNS, DHCP, VPN, NPS, 802.1X.
• Experience with virtualization, preferably Hyper-V.
• Working knowledge of PowerShell.
• Experience with ADFS and ADCS/PKI.
• Knowledge of Linux administration.
• Experience with Windows Autopilot, Windows Autopatch, or Windows 365.
• Experience with enterprise storage and physical server infrastructure.
• Knowledge of web hosting and public DNS.
• Experience with ITSM tools such as GLPI.
• Strong troubleshooting and problem-solving skills.
• Ability to work independently and collaboratively.
• Good communication skills and proactive problem-solving.
• Polish language at C1+ level and English at B2+ level.
• Openness to work in a hybrid model from the Warsaw office.

• Administer and maintain Windows Server infrastructure including ADDS, DNS, DHCP, GPO, File Server/DFS, and related services.
• Manage and maintain Active Directory, including users, groups, permissions, policies, and identity-related services.
• Administer SCCM focusing on software deployment, OS imaging, and patch management.
• Manage and monitor backup solutions such as Veeam and Synology NAS.
• Administer and maintain Remote Desktop Services (RDS).
• Manage Microsoft Defender for Endpoint, including device onboarding and security policies.
• Administer Microsoft Intune, Autopilot, Windows Autopatch, and other endpoint management solutions.
• Administer Microsoft 365 and Entra ID services including Exchange Online, Teams, SharePoint Online, and OneDrive.
• Maintain and troubleshoot Hyper-V, physical servers, storage, and server hardware.
• Support VPN, DirectAccess/Always On VPN, NPS, 802.1X, and other core network services.
• Diagnose infrastructure incidents, identify root causes, and implement solutions.
• Monitor infrastructure performance, availability, and security proactively.
• Maintain web hosting, domains, and public DNS.
• Use PowerShell to automate administrative tasks.
• Maintain technical documentation and contribute to IT infrastructure projects.
• Collaborate with the Security Engineer on infrastructure security and incident management.
• Support maintenance and operation of the company's server room and related infrastructure.