Senior System Administrator – L3

Marktine Technology Solutions Pvt. Ltd.; Jaipur; On-site; INR 900,000 - 1,600,000; Full time

Job summary

Vriti is seeking an IT Systems Administrator with strong focus on Active Directory, Windows Server, and cloud integration. The role involves managing on-premises and hybrid environments, implementing security controls like MFA/SSO, and automating tasks with PowerShell.

A solid foundation in VMware/Hyper-V and Azure AD is essential. The candidate will support identity and access management across Microsoft 365 and Entra ID, while ensuring reliable operations and incident resolution in a

Qualifications

• Bachelor’s degree in a computer-related field or equivalent experience.
• Proven experience in Active Directory administration and domain services.
• Strong troubleshooting skills for Windows Server and Linux environments.

Responsibilities

• Administer and troubleshoot Windows Server and Linux environments.
• Configure and manage Active Directory, Group Policy, DNS, DHCP, and domain services.
• Manage user accounts, groups, permissions, authentication, and access.
• Troubleshoot server performance, availability, and OS-related issues.
• Perform server patching, upgrades, and maintenance.

Skills

Active Directory administration

PowerShell

MFA

SSO

Azure AD

Education

Bachelor’s degree in computer science or related field

Tools

VMware

Hyper-V

Nutanix

VirtualBox

Job description

Key Responsibilities

• Administer and troubleshoot Windows Server and Linux environments.
• Manage server roles, services, processes, storage, permissions, and system performance.
• Configure and manage Active Directory, Group Policy, DNS, DHCP, and domain services.
• Manage user accounts, groups, permissions, authentication, and access.
• Troubleshoot server performance, availability, application, and OS-related issues.
• Perform operating system patching, upgrades, and maintenance.
• Monitor server health, CPU, memory, disk, services, and system logs.
• Perform server installation, configuration, migration, and decommissioning activities.
• Troubleshoot server-client connectivity and application-related issues.
• Strong hands-on experience with Active Directory administration.
• Troubleshoot AD replication, authentication, login, DNS, and Group Policy issues.
• Working knowledge of Microsoft Entra ID / Azure AD.
• Support hybrid identity environments involving Active Directory and Entra ID.
• Manage identity and access-related issues.
• Working knowledge of MFA, Conditional Access, SSO, and identity security.
• Administer and troubleshoot Microsoft 365 environments.
• Troubleshoot user authentication, mailbox, email delivery, permissions, licensing, and Microsoft 365 service issues.
• Support hybrid on-premises and cloud environments.
• Troubleshoot cloud connectivity, authentication, compute, storage, and access issues.
• Monitor Azure resources and identify performance or availability issues.
• Assist with cloud migration and infrastructure improvement projects.
• Manage and troubleshoot enterprise virtualization environments.
• Troubleshoot VM connectivity, resource utilization, storage, and performance issues.
• Manage and monitor enterprise backup solutions.
• Perform backup configuration, monitoring, restore, and recovery activities.
• Perform Root Cause Analysis (RCA) for major incidents.
• Identify recurring issues and recommend permanent corrective actions.
• Work with vendors and internal teams to resolve complex issues.
• Use PowerShell for system administration and automation.

Technical Skills

• Windows Server | Active Directory | Group Policy | DNS | DHCP | File Services | Windows Services | Server Monitoring | Patch Management | Server Hardening | Microsoft 365 | Exchange Online | Teams | SharePoint Online | OneDrive | Microsoft 365 Admin Center | Microsoft Entra ID / Azure AD | Active Directory | MFA | Conditional Access | SSO | RBAC | Authentication | Authorization | Microsoft Intune | Device Enrollment | Configuration Profiles | Compliance Policies | Application Deployment | Windows Update | Endpoint Security | Windows Autopilot | VMware | Hyper-V | Nutanix | VirtualBox | VM Provisioning | Snapshots | VM Migration | Resource Management

Qualifications

• Bachelor’s degree in computer science, Information Technology, Computer Engineering, or a related technical field, or equivalent industry experience.