L3 Engineer – Technical Infra & M365

Location: Pune Employment Type: full-time Designation: L3 Engineer – Technical Infra & M365

Job Details

Key Responsibilities

Technical Infrastructure Support

  • Act as L3 escalation point for complex infrastructure incidents
  • Own incident management, RCA, and permanent resolution
  • Maintain SOPs, runbooks, and knowledge-base documentation
  • Conduct proactive health checks, capacity planning, and monitoring

Microsoft 365

  • Administer Exchange Online, Teams, SharePoint, OneDrive, Intune, and Azure AD / Entra ID
  • Manage tenant config, licenses, security & compliance policies
  • Implement Conditional Access, MFA, SSO, and DLP policies
  • Lead M365 migrations, upgrades, and new rollouts

Server

  • Manage Windows Server (2016/2019/2022) and Linux environments
  • Administer AD, DNS, DHCP, GPO, and File Services
  • Handle VMware vSphere / ESXi and Hyper-V virtualization
  • Own patch management, server hardening, backup & DR operations

Network

  • Support enterprise LAN/WAN, VLAN, and SD-WAN infrastructure
  • Administer firewalls (Fortinet / Palo Alto / Cisco ASA), switches, routers
  • Manage site-to-site and remote access VPNs
  • Troubleshoot network outages and coordinate with ISPs/vendors

Team Mentoring

  • Mentor and coach L1/L2 engineers through knowledge sharing
  • Conduct technical training sessions and workshops
  • Review incident resolutions and documentation quality
  • Support hiring, onboarding, and performance evaluations

Required Skills

  • Deep expertise in M365 admin suite
  • Windows Server administration (AD, DNS, DHCP, GPO)
  • Virtualization – VMware / Hyper-V
  • Networking – TCP/IP, VLANs, VPN, firewall management
  • PowerShell scripting for automation
  • ITSM tools (ServiceNow / Jira) and ITIL process knowledge

Preferred Certifications

  • Microsoft 365 Certified: Enterprise Administrator Expert
  • AZ-104 – Azure Administrator Associate
  • CCNA / CCNP or CompTIA Network+
  • VCP – VMware Certified Professional
  • ITIL v4 Foundation

 

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