Expert Systems Engineer - Windows

Expert Systems Engineer – Windows Infrastructure Job Description: Responsibilities: - Serve as the primary Windows Infrastructure SME supporting Windows Server, Active Directory, Cloud infra and VMware technologies, providing L4-level support and guidance. - Own the administration, maintenance, troubleshooting, and lifecycle management of Windows Server 2012/2016/2019/2022/2025 environments. - Manage and support Active Directory, Group Policy, DNS, DHCP, DFS, IIS, Certificate Services, Failover Clustering, and File & Print Services. - Lead complex troubleshooting efforts and act as the highest technical escalation point for critical production incidents, major outages, and customer escalations. - Collaborate with customers, architects, project teams, and service delivery leadership to drive infrastructure stability, transformation, and customer satisfaction. - Participate in service transitions, customer onboarding, knowledge transfer activities, and infrastructure assessments. - Lead root cause analysis (RCA), problem management, and service improvement initiatives to reduce recurring incidents. - Perform server provisioning, patching, upgrades, migrations, decommissioning, and operating system modernization initiatives. - Working knowledge of VMware vSphere, vCenter, ESXi, HA, DRS, vMotion, and related virtualization technologies as a primary infrastructure platform. - Support hybrid infrastructure environments spanning on-premises datacentres and Microsoft Azure, including Azure VM administration, monitoring, backup, recovery, and identity-related services. - Drive automation and operational efficiency using PowerShell, PowerShell DSC with Azure management, Ansible and other automation technologies is an added plus. - Proven experience acting as the final technical escalation point for Windows, Active Directory, Entra ID, VMware, and Azure-related critical incidents. - Administer enterprise monitoring and observability platforms including ServiceNow, Grafana, LogicMonitor, SolarWinds, SCOM, Dynatrace, and similar tools. - Ensure infrastructure compliance with security standards through vulnerability remediation, Windows hardening, patch management, and audit support. - Support backup, recovery, disaster recovery, and business continuity solutions using Veeam, Commvault, NetBackup, or equivalent technologies. - Create and maintain technical documentation, operational runbooks, standards, and support procedures. - Mentor L3 engineers and provide technical guidance across the Windows practices. Qualifications - Bachelor’s degree in computer science, Information Technology, Engineering, or equivalent experience. - Minimum 15+ years of hands-on experience managing enterprise Windows Infrastructure environments. - 10+ years of strong hands-on experience with Active Directory Domain Services (AD DS), including administration, troubleshooting, Group Policy management, replication, DNS integration and security best practices, VMware, PowerShell automation, enterprise monitoring, backup/recovery, and ITSM processes. - Minimum 3 to 5 years of Microsoft Azure, Entra ID / Hybrid Identity experience. - Technical knowledge of: - Windows Server 2012/2016/2019/2022/2025 - Active Directory Domain Services - Federation Services (ADFS) and Single Sign-On (SSO) - Active Directory Sites and Services, Trusts and Replication - Active Directory Certificate Services - Group Policy Administration - DNS, DHCP, DFS, DFS-R - Microsoft Entra ID (Azure AD), - Azure AD Connect / Microsoft Entra Connect - Hybrid Identity, and Identity & Access Management - Multi-Factor Authentication (MFA) - Privileged Identity Management (PIM) - IIS and Certificate Services - Windows Failover Clustering - File & Print Services - Strong experience with VMware technologies including ESXi, vCenter, vSphere, HA, DRS, vMotion, and virtualization best practices. - Working knowledge of Microsoft Azure services including Azure VMs, Azure Backup, Azure Site Recovery, Azure Monitor, Azure Arc, and Hybrid Identity solutions with the ability to perform day-to-day administration and troubleshooting activities. - Advanced PowerShell scripting expertise with demonstrated experience in automation, orchestration, and operational efficiency initiatives. - Hands-on experience with monitoring tools such as Grafana, SolarWinds, LogicMonitor, Dynatrace, BMC Truesight, AppDynamics, and Microsoft SCOM. - Strong understanding of ITSM processes including Incident, Problem, Change, Major Incident, and Escalation Management using ServiceNow. - Experience managing enterprise backup and disaster recovery solutions such as Veeam, Commvault, or NetBackup. - Strong knowledge of security, vulnerability remediation, CIS hardening standards, Microsoft Defender, Qualys, Tenable, and compliance frameworks. - Proven experience leading P1/P2 incidents, executive escalations, customer governance meetings, and technical reviews. - Experience with infrastructure transitions, service onboarding, due diligence, and operational readiness assessments. - Strong communication, stakeholder management, customer-facing, documentation, and leadership skills.