# Senior IT Engineer

> XR Extreme Reach · Chicago, United States (Hybrid) · — · Posted 2026-04-22

**Workplace:** hybrid

**Department:** IT

## Description

The Senior IT Engineer plays a critical role in ensuring the stability, security, and scalability of the organization’s global IT environment. This position sits at the intersection of end-user support and enterprise infrastructure, providing hands-on technical expertise across Microsoft 365, cloud platforms, and core systems while delivering a seamless experience for both onsite and remote employees.

Acting as a senior escalation point, this individual is responsible for managing and optimizing Microsoft 365 services, overseeing identity and access management, and maintaining endpoint and infrastructure health across a complex, fast-paced environment. The role combines operational excellence with strategic input—driving automation, improving system performance, and implementing governance and security best practices.

In addition to day-to-day support and troubleshooting, the Senior IT Engineer partners cross-functionally on projects, contributes to continuous improvement initiatives, and helps elevate team capability through documentation and knowledge sharing. This is a highly collaborative, hands-on role suited for someone who thrives in a dynamic environment, takes ownership of challenges, and is motivated to enhance both systems and user experience at scale.

**Responsibilities**

-   Manage and maintain the overall M365 tenant configuration and health.

-   Support hybrid identity and authentication (Azure AD, SSO, MFA).
-   Administer mail flow, mailbox management, and email security.
-   Configure transport rules, retention policies, and hybrid Exchange setups.
-   Manage site collections, permissions, and sharing settings.
-   Support OneDrive sync issues and implement DLP policies.
-   Configure Teams policies, lifecycle management, and integrations.
-   Support Teams voice, calling plans, and meeting configurations.
-   Implement and monitor Microsoft Defender for Office 365 and Purview.
-   Manage Conditional Access, audit logs, and compliance features.
-   Deploy and manage devices using Microsoft Intune.
-   Configure compliance policies, app protection, and Autopilot.
-   Provide insights and recommendations to improve M365 usage.
-   Develop PowerShell scripts for automation and reporting.
-   Utilize Power Automate and Graph API for workflow automation.
-   Act as Tier 3 support for M365-related issues.
-   Extensive knowledge of Windows OS’s & MAC OS's
-   Administer and support global active directory domain including but not limited to DHCP, DNS, Group Policy, Sites & Services.
-   Undertake additional duties and special projects as assigned.

_**Pursuant to Chicago's Pay Transparency Laws, the base pay range for this position is $85,000-$95,000 per year; base pay offered may vary depending on job-related knowledge, skills, and experience.**_

## Requirements

-   5+ years of experience managing Microsoft 365 environments.
-   Strong expertise in Exchange Online, SharePoint Online, Microsoft Teams, and Intune.
-   Deep understanding of Active Directory (AD) and Azure Active Directory (Azure AD), including:

-   Group Policy Objects (GPOs), OU structure, and domain trust relationships.
-   User and group management, permissions, and access control.
-   AD replication, DNS, and troubleshooting domain-related issues.

-   Experience with hybrid identity environments, including Azure AD Connect and synchronization troubleshooting.
-   Proficiency in PowerShell scripting for automation, reporting, and bulk operations.
-   Solid grasp of Conditional Access, MFA, and identity protection strategies.
-   Familiarity with compliance tools such as eDiscovery, DLP, and audit logging.
-   Excellent troubleshooting, documentation, and communication skills.
-   End point management systems (Jamf, Intune, Endpoint Central).
-   Troubleshooting remote and onsite user issues across multiple different endpoint types and OSs.
-   In-depth understanding of Microsoft Active Directory.
-   VMware/vSphere experience (installation, configuration, maintenance and troubleshooting).
-   Experience with Linux & Windows Servers.
-   Domain trusts, AD replication, AD Connect, GPO, OU structure management.
-   Storage skills, Fibre channel, ISCSI, SAN and NAS.
-   Experience with cloud technologies, especially Azure, AWS, EC2, WorkSpaces .
-   Technical proficiency and knowledge of IT infrastructure, networks, and systems to effectively manage and troubleshoot issues.

## Apply

[Apply at XR Extreme Reach](https://apply.workable.com/extremereach/j/525658639F/apply)

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