Senior System Administrator -L3

Role overview

Senior System Administrator -L3 at In Time Tec Visionsoft

Administer and troubleshoot Windows Server and Linux environments.

Responsibilities

• 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.

Required qualifications

• 6+ Years |

Preferred qualifications and skills

• Preferred Certifications Microsoft Certified: Windows Server Hybrid Administrator Associate Microsoft Certified: Azure Administrator Associate (AZ-104) Microsoft Certified: Identity and Access Administrator Associate (SC-300) Microsoft 365 Certified: Administrator Expert Microsoft Certified: Endpoint Administrator Associate VMware certification CompTIA Server +

Employment details

• Employment Type: Full-Time | Level: Senior / L3 Position Summary We are looking for an experienced Senior System Administrator with 6+ years of hands-on experience in IT infrastructure and system administration.
• The candidate will be responsible for managing, maintaining, monitoring, troubleshooting, and securing enterprise infrastructure across Windows Server, Active Directory, Microsoft 365, Azure, Intune, virtualization, backup, security, and IT operations .
• The role requires strong troubleshooting and problem-solving skills, the ability to independently handle complex infrastructure issues, perform system changes and upgrades, support critical incidents, and provide technical guidance to junior engineers.
• Location: Jaipur, Bangalore

Additional role details

• Senior System Administrator -L3