Senior System Administrator L3

18 hours ago

Jodhpur, Rajasthan, India AMSYS IT SERVICES PRIVATE LIMITED Full time

Job Title: System Administrator Level 3

Location: Mumbai, Thane, India

Job Type: Full-Time

Shift: 24x7 Operations Support

Department: NOC, SOC, and Help Desk

Job Summary:

Position Overview

We are seeking a highly skilled Level 3 (L3) Windows System Administrator with strong expertise in Microsoft 365, Azure, SharePoint, Power BI, and workflow automation. The ideal candidate will be responsible for advanced system administration, troubleshooting, migrations, and automation while ensuring a secure, reliable, and scalable IT infrastructure. This role requires deep technical knowledge, hands-on experience, and the ability to mentor junior team members.

Key ResponsibilitiesWindows & Infrastructure Administration
  • Manage, configure, and troubleshoot Windows Server environments (AD, DNS, DHCP, Group Policy, File/Print services).
  • Maintain virtualized environments (Hyper-V, VMware, or Azure Virtual Desktop).
  • Perform patch management, upgrades, and system performance optimization.
  • Implement backup, disaster recovery, and high-availability strategies.
Microsoft 365 & Azure Administration
  • Administer O365 tenant services including Exchange Online, Teams, OneDrive, and SharePoint Online.
  • Manage Azure AD, Conditional Access Policies, Security & Compliance Center.
  • Configure and maintain Intune MDM/MAM for endpoint security and compliance.
  • Support hybrid environments (on-premises AD + Azure AD Connect).
SharePoint & Power Platform
  • Administer and support SharePoint Online/On-Prem, including site collections, permissions, and workflows.
  • Design, implement, and maintain Power Automate (Flow) solutions for business process automation.
  • Develop Power BI dashboards and reports integrating data from multiple sources.
  • Collaborate with business stakeholders to optimize collaboration and reporting platforms.
Migration Projects
  • Lead and execute migrations to O365, SharePoint Online, and Azure.
  • Perform email and data migrations (Exchange, PST, file shares, SharePoint, legacy systems).
  • Ensure minimal downtime and data integrity during migration processes.
Security & Compliance
  • Implement identity and access management (IAM) best practices.
  • Monitor and respond to security alerts and incidents across O365/Azure.
  • Ensure compliance with regulatory standards (ISO, SOC2, HIPAA, etc.).
Support & Mentorship
  • Provide L3 support for escalated incidents and problem management.
  • Create documentation, SOPs, and runbooks for IT operations.
  • Mentor and guide L1/L2 engineers in troubleshooting and best practices.
Required Skills & Experience
  • 7+ years of experience in Windows Server administration.
  • 5+ years of hands-on experience with Microsoft 365 & Azure Administration.
  • Strong knowledge of Active Directory, Group Policy, DNS, DHCP.
  • Expertise in SharePoint Online/On-Prem, Power BI, and Power Automate.
  • Proven track record in O365 / Exchange Online migrations and SharePoint migrations.
  • Experience with Intune, Endpoint Manager, and security tools.
  • Solid understanding of networking fundamentals (TCP/IP, VPN, firewalls, load balancers).
  • Strong scripting skills in PowerShell for automation and administration.
  • Excellent troubleshooting, analytical, and problem-solving abilities.
Preferred Qualifications
  • Microsoft certifications (MCSE, MS-100, MS-101, AZ-104, AZ-305, etc.).
  • Experience with hybrid cloud environments.
  • Familiarity with third-party migration tools (Quest, BitTitan, ShareGate, etc.).
  • Knowledge of SIEM, SOC monitoring, and advanced security tools.
Soft Skills
  • Strong communication and documentation skills.
  • Ability to work independently and as part of a global IT team.
  • Leadership qualities to mentor and guide junior staff.
  • Customer-focused mindset with a commitment to service excellence.

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