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L3 Senior System Administrator - Microsoft Wintel Domain

L3 Senior System Administrator - Microsoft Wintel Domain

Talent WorxBangalore
23 days ago
Job description

Key Responsibilities :

Server Administration & Troubleshooting :

  • Manage Microsoft servers including Hyper-V, Active Directory, DHCP, DNS, SQL, etc.
  • Perform new deployments, migrations, and troubleshooting of production servers with minimal downtime.
  • Troubleshoot Windows performance issues (server crashes, no boot, memory leaks, registry issues, sluggish / unresponsive systems).
  • Analyze and configure memory dumps, user mode & kernel mode processes.

Escalation & Incident Management :

  • Act as the designated escalation point for L2 / L1 engineers.
  • Resolve L3 incidents independently and lead complex cross-technology issue resolutions.
  • Provide leadership in crisis situations and ensure timely closure of escalations.

    • Change, Patch & Configuration Management :

  • Plan, review, and implement change records with proper risk / impact analysis.
  • Apply security patches and monitor environments for compliance.
  • Maintain CMDB accuracy and contribute to process improvements.

    • Performance & Optimization :

  • Identify root causes and perform trend analysis for recurring problems.
  • Lead proactive efforts to prevent future incidents and optimize infrastructure performance.

    • Cloud & Virtualization :

  • Manage and troubleshoot VMware (ESXi, vCenter, vSAN, SRM, vMSC) and Microsoft Hyper-V.
  • Support Windows performance on Azure & AWS platforms, including IaaS, PaaS, and SaaS.
  • Design and implement solutions on Microsoft Azure with a focus on performance, security, and compliance.

    • Automation & Scripting :

  • Develop automation using PowerShell, Python, Ansible, Puppet, etc.
  • Contribute to CI / CD pipelines and automation initiatives for efficiency.

    • Collaboration & Leadership :

  • Mentor and guide L1 / L2 engineers, preparing them for L3 responsibilities.
  • Collaborate with cross-functional teams, vendors, and clients to design solutions and resolve complex issues.
  • Ensure secure handling of sensitive data, access credentials, and configurations.

    • Technical Skills :

  • Microsoft Technologies : Windows Server 2008 / 2012 / 2016 / 2019, AD Group Policies, DNS, DHCP, SQL Server.
  • Virtualization : VMware (vSphere, vSAN, SRM), Microsoft Hyper-V, System Center.
  • Cloud Platforms : Azure (IaaS, PaaS, SaaS), AWS (Windows performance troubleshooting).
  • Performance Troubleshooting : Registry, BIOS, CPU, Memory, Sysinternals tools, hidden processes, kernel / user mode debugging.
  • Networking : Strong understanding of TCP / IP, load balancing, firewall basics.
  • Storage & Backup : HPE / NetApp / Pure, Commvault, antivirus, compliance and patch management.
  • Automation : PowerShell, Python, Ansible, Puppet; CI / CD pipeline knowledge.
  • Security & Compliance : OS hardening, vulnerability assessment, audit readiness.

    • Qualifications : Education :

  • BE / B.
  • Tech / M.
  • Tech / MSc / MCA or equivalent.

    • Certifications :

  • Microsoft certifications (latest track).
  • ITIL Certified (mandatory).
  • Azure Administrator Associate or Azure Solutions Architect Expert (preferred).
  • VMware VCP / VCAP certifications (a plus).

    • Experience :

  • 7 to 9 years of experience as a System Administrator in the Microsoft Wintel domain.
  • Strong scripting and automation experience with proven ability to lead escalations.
  • Hands-on experience supporting enterprise-class Data Centers and hybrid cloud environments.
  • Prior experience in customer-facing L3 engineering roles with leadership responsibilities.

    • Business Skills :

  • Excellent communication (written & verbal) and client interaction skills.
  • Strong decision-making, problem-solving, and time / resource management abilities.
  • Ability to collaborate with global, cross-functional teams in high-pressure environments.
  • Strong sense of accountability, confidentiality, and customer-first mindset.
  • Experience mentoring and motivating support teams across L1 / L2 levels

    • (ref : hirist.tech)

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