Senior Windows System Administrator

Job Purpose: We are seeking a skilled Senior Windows System Administrator to oversee and manage Windows Server environments, Active Directory, DNS, DHCP, and operational workloads, including Microsoft SQL Server administration. The ideal candidate will have extensive experience in Windows system administration, MSSQL support, security best practices, and infrastructure optimization to ensure a stable and efficient IT environment.   Key Responsibilities Windows Server Administration: Maintain, configure, and optimize Windows Server environments (2016, 2019, 2022). Active Directory Management: Administer Active Directory (AD), Group Policies (GPO), authentication, and user/group management. Network Services: Configure and manage DNS, DHCP, and other core network services to ensure seamless connectivity and efficient name resolution. MSSQL Administration: Install, configure, and maintain Microsoft SQL Server instances; monitor database performance, manage backups/restores, and ensure high availability. Security & Compliance: Implement security hardening, access control policies, patching, and compliance measures to safeguard systems and data. Performance Monitoring & Troubleshooting: Proactively monitor system and database performance, identify bottlenecks, and resolve issues using Windows tools, SQL diagnostic utilities, and third-party platforms. Backup & Disaster Recovery: Implement and maintain server and database backup and recovery strategies using tools like Veeam, Windows Backup, SQL Server native backup, or third-party solutions. Automation & Scripting: Develop and maintain PowerShell scripts and T-SQL jobs to automate administrative tasks and improve operational efficiency. Incident & Change Management: Follow ITIL best practices for incident response, change management, and service request handling. Cloud & Hybrid Integration: Work with Azure Active Directory (AAD), Microsoft 365, hybrid identity, and SQL in Azure (IaaS/PaaS). Documentation & Collaboration: Maintain clear documentation of infrastructure, database configurations, policies, and standard operating procedures (SOPs).       Qualifications Education: Bachelor’s degree in Computer Science, Information Technology, or equivalent experience. Experience: 7+ years of experience as a Windows System Administrator in enterprise IT environments, with proven MSSQL administration experience. Certifications: Microsoft Certified: Windows Server Hybrid Administrator Associate, Azure Administrator Associate, Microsoft Certified: Azure Database Administrator Associate, or MCSE (preferred).   Technical Proficiency Deep expertise in Windows Server administration, Active Directory, Group Policies, and domain services. Strong knowledge of DNS, DHCP, and networking fundamentals. Hands-on experience with Microsoft SQL Server: installation, maintenance, performance tuning, backup/restore, high availability (AlwaysOn, clustering), and security. Proficiency in PowerShell scripting and T-SQL for automation and administrative tasks. Experience with security best practices, patch management, and access control. Familiarity with virtualization platforms (VMware, Hyper-V, OCI). Strong troubleshooting and problem-solving skills across systems and database environments.