Senior IT Administrator

Our requirements

• 4+ years of professional experience in IT infrastructure administration.
• Strong hands-on experience with Active Directory / ADDS.
• Practical experience with SCCM, particularly 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 such as DNS, DHCP, VPN, NPS, and 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.
• Experience with PowerShell automation.
• Strong troubleshooting and problem-solving skills.
• Ability to work independently while being a collaborative team player.
• Good communication skills and a proactive approach to identifying and solving problems.
• Polish language at C1+ level, English at B2+ level.
• Openess to work in a hybrid model from our Warsaw office.

Your responsibilities

• 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 with a focus on software deployment, OS imaging, and patch management.
• Manage and monitor backup solutions, including Veeam and Synology NAS, and ensure data can be successfully recovered.
• Administer and maintain Remote Desktop Services (RDS).
• Manage Microsoft Defender for Endpoint, including device onboarding and security policy configuration.
• Administer Microsoft Intune, Autopilot, Windows Autopatch, and other endpoint management solutions.
• Administer Microsoft 365 and Entra ID, 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 effective solutions.
• Monitor infrastructure performance, availability, and security and proactively address potential issues.
• Maintain web hosting, domains, and public DNS.
• Use PowerShell to automate repetitive administrative tasks and improve operational efficiency.
• Maintain technical documentation and contribute to IT infrastructure projects and continuous improvement initiatives.
• Collaborate with the Security Engineer on infrastructure security, vulnerabilities, and security incidents.
• Support the maintenance and operation of the company's server room and related infrastructure.

About the project

Technologies you will work with:

• Core infrastructure: ADDS, ADFS, ADCS/PKI, Windows Server, File Server/DFS, DNS, DHCP, GPO, Hyper-V, RDS, Linux
• Endpoint & device management: SCCM, Intune, WSUS, Windows Autopatch, Autopilot, Windows 365
• Microsoft 365: Entra ID, Exchange Online, Teams, SharePoint Online, OneDrive
• Security: Microsoft Defender for Endpoint, NPS, 802.1X, VPN, password management
• Backup & hardware: Veeam, Synology NAS, physical servers, storage, iDRAC/iLO/iRMC
• Tools & automation: PowerShell, GLPI

Benefits

• sharing the costs of sports activities
• private medical care
• sharing the costs of foreign language classes
• sharing the costs of professional training & courses
• life insurance
• remote work opportunities
• flexible working time
• fruits
• corporate products and services at discounted prices
• integration events

APN Promise S.A.