#SGunited Jobs Senior Infrastructure Engineer

. Deliver advanced support and operational maintenance for:

o Windows Server Environments (2016, 2019, 2022)

o Active Directory, DNS, DHCP, Group Policy

o Endpoint Management Tools: BigFix, SCCM, WSUS

o VMware: ESXi, vCenter, vSphere environments

o PowerShell scripting for automation and reporting

o SharePoint (On-prem and Online) administration and access management

. Manage and resolve incidents, problems, and complex service requests in a production environment.

. Provide technical escalation support to L1/L2 teams and perform deep-dive analysis and troubleshooting.

. Monitor system performance, ensure availability, and conduct proactive capacity and patch planning.

. Execute recurring operational tasks like health checks, patch deployment, policy enforcement, and security validation.

. Prepare and maintain technical documentation, incident reports, and SOPs.

. Coordinate with vendors and OEM support teams for product-related escalations and issue resolution.

Optional / Good to Have:

Experience in Directory & Authentication Systems:

. Active Directory Federation Services (ADFS), Azure AD / Microsoft Entra ID

. LDAP, PKI, and DNS Infrastructure

. SAML, OAuth, and MFA implementations

. Identity lifecycle and compliance policy enforcement