Senior Microsoft Infra Architect & Engineer (AD, 365, Intune)

careers-sentinel

Cicero (IL)

On-site

USD 66,000 - 79,000

Full time

14 days+

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Job summary

Sentinel Technologies, Inc. is seeking a Senior Systems Engineer to act as the on-site technical subject matter expert for Microsoft infrastructure, including Active Directory, Microsoft 365, Entra ID, Intune, and VMware environments.

The role focuses on supporting and modernizing the existing infrastructure, establishing governance, standards, and best practices, and mentoring teammates. This contract-to-hire position is onsite in Cicero, Illinois.

Qualifications

Significant hands-on experience administering enterprise Microsoft infrastructure environments.
Strong expertise with: Active Directory, Microsoft 365, Entra ID, Intune, VMware.
Experience supporting hybrid Microsoft environments.
Strong understanding of identity and access management principles.
Experience with PowerShell scripting and automation.
Proven ability to troubleshoot complex infrastructure issues.
Experience documenting environments, implementing standards, and driving infrastructure improvements.
Strong communication and collaboration skills with the ability to work effectively across teams.
Legally authorized to work in the US without sponsorship
Must demonstrate a “can-do” attitude
Bachelor's degree in IT, CS, or related field preferred.

Responsibilities

Serve as onsite technical subject matter expert for Microsoft infrastructure (AD, M365, Entra ID, Intune, VMware).
Support and modernize current infrastructure while establishing long-term architecture, standards, governance, and best practices.
Collaborate with team members through knowledge sharing and mentorship to drive improvements.
Transform and optimize enterprise environments rather than simply maintain them.