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.