Senior Systems Engineer, M365

This is a remote position.

Position Overview

The Senior Systems Engineer, M365, is a subject matter expert responsible for designing, administering, and optimizing the Microsoft 365 ecosystem within the IT environment. This role will focus heavily on Exchange, Teams, SharePoint, OneDrive, security & compliance, identity & access management, and automation.

As a senior technical resource, the individual will ensure the performance, security, and availability of Microsoft 365 services while collaborating with cross-functional IT teams, business stakeholders, and third-party vendors. This position requires technical expertise combined with a strategic approach to drive innovation, streamline processes, and support the company’s digital transformation initiatives.

The ideal candidate is a proactive, adaptable professional with deep expertise in Microsoft 365 platforms, automation, identity governance, and cloud service optimization.

Key Responsibilities

Microsoft 365 Systems Engineering & Administration

• Design, implement, and maintain Microsoft 365 solutions, including Exchange Online, Teams, SharePoint, OneDrive, and other M365 collaboration services.
  
• Oversee the health, performance, and scalability of M365 systems, ensuring optimal end-user experience.
  
• Administer email systems, including mail flow, distribution groups, shared mailboxes, and email security (e.g., Defender, DKIM, SPF, DMARC).
  
• Lead configuration and management of Microsoft 365 security & compliance tools (eDiscovery, Data Loss Prevention, Retention, Litigation Hold).
  
• Manage M365 licensing, subscriptions, and service feature rollouts.
  

Identity, Authentication & Access Management

• Administer Azure Active Directory (Azure AD), Entra Connect, and hybrid identity environments.
  
• Configure and manage Conditional Access, Multi-Factor Authentication (MFA), and Privileged Identity Management (PIM).
  
• Automate identity lifecycle processes (user provisioning, access assignments, offboarding) using PowerShell and Azure Automation.
  
• Support and maintain hybrid identity synchronization (Entra Connect) and federated authentication.
  

Automation & Optimization

• Develop and maintain PowerShell scripts and automation workflows for system administration, user lifecycle management, and reporting.
  
• Implement Infrastructure as Code (IaC) principles where applicable to manage cloud resources efficiently.
  
• Drive efficiency improvements across the M365 platform through process automation and configuration optimization.
  

Collaboration Platform Enhancement

• Enhance the Microsoft Teams and SharePoint Online user experience through governance, configuration, and customization.
  
• Support the adoption and optimization of collaborative tools within M365 to streamline workflows and improve user productivity.
  

Security & Compliance

• Implement security best practices within the Microsoft 365 ecosystem, including role-based access controls, email threat protection, and data governance policies.
  
• Collaborate with cybersecurity and compliance teams to maintain M365 security posture and ensure regulatory compliance (e.g., SOX).
  
• Assist with internal and external audits related to M365, identity management, and access controls.
  

Backup, Recovery & Business Continuity

• Administer Microsoft 365 backup and recovery solutions to ensure data protection and business continuity.
  
• Develop recovery procedures and ensure M365 services align with disaster recovery requirements.
  

Collaboration, Mentorship & Support

• Work alongside IT infrastructure, security, and application teams to deliver integrated cloud solutions.
  
• Mentor junior team members and serve as a technical escalation point for Microsoft 365-related issues.
  
• Engage with Microsoft Premier Support and third-party vendors to resolve platform-specific incidents and optimize services.
  
  

Requirements

• Education & Experience
  

  • 7+ years of IT experience, with at least 4 years of hands-on experience administering and engineering Microsoft 365 platforms and hybrid cloud environments.
    

  Technical Skills
  

  • Deep expertise in Microsoft 365 services: Exchange Online, Teams, SharePoint, OneDrive, Security & Compliance.
    
  • Strong understanding of Active Directory (On-Prem), Azure Active Directory (Azure AD), hybrid identity synchronization (Entra Connect), and authentication protocols.
    
  • Proficiency in PowerShell scripting and automation for M365 administration.
    
  • Experience with email security standards (SPF, DKIM, DMARC) and Microsoft Defender.
    
  • Familiarity with Microsoft 365 compliance tools (eDiscovery, Retention, DLP) and SOX-related IT controls.
    
  • Knowledge of network protocols and concepts as they relate to cloud services (DNS, TCP/IP, VPN).