Senior System Administrator

Company: “VLand Systems” LLC (former “STP Metal Structures” LLC) Key Responsibilities: Install, administer, and ensure the continuous availability of Windows and Linux server infrastructure; Administer Microsoft Active Directory Domain Services (AD DS), DNS, DHCP, Group Policy (GPO), DFS, File Server, Print Server, and other core infrastructure services; Manage Microsoft 365, Exchange Server (On-Premises), Exchange Hybrid, Exchange Database Availability Group (DAG), SharePoint, Microsoft Teams, Microsoft Entra ID (Azure AD), and Microsoft Intune platforms; Administer including Virtual Machines, Virtual Networks, Storage; Administer server and endpoint management; Install, configure, administer, and optimize Proxmox VE virtualization platforms; Manage virtual machines, virtual networks, storage integrations, and High Availability (HA) environments; Administer HPE ProLiant Gen10/Gen11 servers, HPE OneView, and HPE iLO platforms; Administer Fibre Channel SAN, Brocade FC Switches, iSCSI, Multipath, LUN Provisioning, Snapshot, and Replication technologies; Administer Veeam Backup & Replication, HPE StoreOnce, Synology, and QNAP backup solutions; Plan, implement, monitor, and test backup, replication, disaster recovery, and business continuity solutions; Automate system administration tasks using Ansible, PowerShell, and Bash; Monitor infrastructure performance and availability using Zabbix, PRTG, Wazuh; Administer Open Source Software-Defined Storage (SDS) solutions, including Ceph, LINSTOR, and DRBD; Monitor, analyze, and optimize the performance of server, storage, and virtualization infrastructure; Prepare, maintain, and update infrastructure documentation and technical procedures; Participate in the implementation of new technologies and the continuous improvement of the IT infrastructure; Support the implementation and enforcement of information security policies and best practices. Requirements: Bachelor's degree in Information Technology, Computer Science, or a related field; Minimum 5 years of experience as a Senior System Administrator, Infrastructure Administrator, or in a similar role; Strong expertise in Windows Server infrastructure administration; Hands-on experience administering Linux operating systems, including Ubuntu, Debian, Red Hat Enterprise Linux (RHEL); In-depth knowledge of Active Directory Domain Services (AD DS), DNS, DHCP, Group Policy (GPO), DFS, Windows Server Failover Clustering (WSFC), and Active Directory Certificate Services (AD CS/PKI); Hands-on experience with Microsoft 365, Exchange Server (On-Premises), Exchange Hybrid, Exchange Database Availability Group (DAG), SharePoint, Microsoft Entra ID (Azure AD), Microsoft Intune, Microsoft Azure, WSUS; Strong knowledge of VMware vSphere, ESXi, vCenter, and Proxmox VE virtualization platforms; Experience with clustering, High Availability (HA), and virtualization infrastructure; Experience administering HPE ProLiant servers, HPE OneView, and HPE iLO; Knowledge of Pure Storage FlashArray, HPE MSA Storage, Fibre Channel SAN, and Brocade Fibre Channel Switch infrastructure; Knowledge of Microsoft SQL Server Always On, Windows Server Failover Clustering (WSFC), and High Availability solutions; Experience with Veeam Backup & Replication, HPE Aletra and QNAP backup solutions; Hands-on experience with Microsoft and open-source infrastructure technologies; Proficiency in automation using PowerShell and Bash; Experience with open-source monitoring and security solutions, including Zabbix, Wazuh; Knowledge of Open Source Software-Defined Storage (SDS) solutions, including Ceph, LINSTOR, and DRBD; Basic to intermediate knowledge of SIEM solutions; Strong analytical, problem-solving, and technical decision-making skills; Strong technical documentation skills; Ability to work effectively in a team environment; Eagerness to learn and adopt new technologies; Results-oriented mindset with a proactive approach; Fluency in Azerbaijani and technical proficiency in English. Preferred Qualifications Knowledge of LDAP, RADIUS, Single Sign-On (SSO), and Multi-Factor Authentication (MFA) technologies; Experience with automated operating system deployment using PXE, Windows Deployment Services (WDS), and Microsoft Deployment Toolkit (MDT); Knowledge of NGINX, HAProxy, reverse proxy, and load balancing solutions; Experience with Microsoft Exchange SE ; Professional certifications such as VMware Certified Professional (VCP), Microsoft Certified: Azure Administrator Associate (AZ-104), RHCSA/RHCE, Veeam Certified Engineer (VMCE), or ITIL Foundation are considered an advantage. Technologies Used in the Work Environment Windows Server 2022/2025 Active Directory Domain Services (AD DS) DNS DHCP Group Policy (GPO) Active Directory Certificate Services (AD CS) Microsoft 365 Exchange Server Exchange DAG SharePoint Microsoft Teams Microsoft Entra ID (Azure AD) Microsoft Intune Microsoft Azure WSUS Network Proxmox SDN CCNA - basics Network Technologies TCP/IP VLAN VPN DHCP DNS NAT Virtualization & Backup Proxmox VE Server HPE ProLiant Gen12 HPE OneView HPE iLO Storage Pure Storage FlashArray HPE Aletra iSCSI Multipath Snapshot Replication Database PostgreSQL PostgreSQL WAL Backup Proxmox Backup HPE Aletra QNAP Linux Ubuntu Debian Red Hat Enterprise Linux (RHEL) Open Source Zabbix Wazuh Ceph LINSTOR DRBD Monitoring Zabbix OpManager PRTG Working Conditions: 5-day work week, 08:00-17:00 working hours Work location: Sumgayit, Azerbaijan Voluntary medical insurance Company-provided lunch and transportation Competitive salary based on the candidate's qualifications, skills, and experience. Candidates who meet the requirements are invited to send their CVs to the e-mail address in theApply for jobbutton, indicating “Senior System Administrator” in the subject line. Only shortlisted candidates will be invited for an interview.