SeniorAdministrator - Microsoft Message Queuing

Job Summary

O365 L2 Admin : The Global Microsoft 365 Administrator (L2) is a senior technical specialist responsible for the stability, security, and optimization of Microsoft 365 services across a global enterprise environment. The role provides advanced (L2) operational support and technical ownership for Exchange Online, Share Point Online, One Drive for Business, Microsoft Teams, and Linux‑based SMTP relay services, ensuring high availability, performance, and compliance. This position acts as the key escalation point for complex and critical incidents, driving root cause resolution in collaboration with Microsoft support and third‑party vendors. The role owns tenant‑wide configurations, security and compliance controls, and change implementation activities, ensuring alignment with internal governance standards, regulatory requirements, and industry best practices. In addition to operational responsibility, the L2 administrator plays a significant role in service optimization, capacity planning, and lifecycle management of Microsoft 365 services. The role also contributes to knowledge management by maintaining standards, SOPs, and architecture documentation, while mentoring L1 engineers and driving skill uplift across global support teams.

Key Responsibilities

• Platform Ownership • Own the end to end architecture of Microsoft 365 services including: o Exchange Online o Share Point Online & One Drive for Business o Microsoft Teams o SMTP Relay (Linux) • Maintain global tenant configurations, service boundaries, and regional deployment models.
• Provide L2 level support for Linux based Mail Relay services & Linux SMTP relay • Support of Mail relay management tool, Mail Self Service Portal, Email Admin Tool (EAT) tool, Email Mgmt. Policy Exemption App, Litigation Hold app, Dynamic Groups Mgmt. Tool, Mail encryption tool, Mail forwarding tool, Corporate Signature tool, Mail Security Tool, Exchange Online Protection, Mail Classification tool, S/MIME for mail encryption, MS Defender for O365 • Provide L2 support for M365 services, including Exchange Online, M365 apps such as Yammer, Planner, Copilot, Linux Based SMTP Mail Relay Service (e.g., List Serv, Post Fix, etc.), SMTP Out, POP3, Scan2Mail Security, Compliance & Governance • Administer M365 security and compliance posture, including: o Conditional Access and identity protection o Sensitivity labels, retention, DLP, e Discovery, audit logging o External collaboration and sharing standards • Ensure alignment with internal policies, regulatory frameworks, and industry best practices.
• Provide support for remediation of security risks, misconfigurations, and audit findings. Incident Management & Escalation (L2) • Act as the technical point for critical and daily or routine M365 incidents.
• Drive the issues related to service outages and systemic failures.
• Coordinate and provide support for escalations with Microsoft support and third party vendors. Service Optimization & Performance • Analyze platform usage, performance trends, and capacity requirements.
• Support the ongoing optimization initiatives for: o Mail flow and messaging performance o Teams meeting/call quality o Share Point and One Drive storage efficiency o Tenant-wide configuration hygiene • Recommend improvements to enhance user experience and operational efficiency. Change, Release & Lifecycle Management • Schedule and implement global M365 changes.
• Govern change validation, testing, communication, and rollback strategies.
• Participate in and implement service lifecycle management, including onboarding of new services and deprecation of legacy features.
• Ensure minimal business disruption during major platform changes. Identity, Access & Integration Oversight • Administer authentication, authorization, and privileged access models.
• Implement and maintain integrations with: o Endpoint management platforms o Power Platform o Third-party collaboration or security tools Reporting & Stakeholder Engagement • Provide inputs for reporting on service health, risks, and improvement opportunities. Knowledge Management & Leadership • Establish and maintain global standards, SOPs, architecture documentation, and runbooks.
• Review and approve L1 operational procedures.
• Mentor and coach L1 administrators and engineers.
• Drive skill uplift and knowledge transfer across global support teams.

Skill Requirements

Microsoft 365 Core Services – Exchange Online, Share Point Online, One Drive, Microsoft Teams • Email & Messaging – Mail flow, Exchange Online Protection, SMTP relay (Linux-based) • Security & Compliance – DLP, retention, sensitivity labels, e Discovery, audit logging, Defender for O365 • Tenant Architecture & Governance – global M365 tenant administration • Incident & Problem Management (L2) – Routine and critical incidents support • Service Optimization & Monitoring – Knowledge on Performance, Capacity, Health metrics • Linux Mail Systems – Knowledge on Postfix/List Serv, SMTP, POP3, Scan to Mail Nice to have Skills – • PowerShell Automation – Hands on experience with M365 administration and operational scripting • Identity & Integration – Knowledge on authentication models, third party and platform integrations

Other Requirements

NA