The Role
Designs, implements, administers, and optimizes enterprise Microsoft 365 environments, including Exchange Online, Teams, SharePoint, Intune, Entra ID, Defender, and Purview. Manages identity, security, compliance, governance, migrations, endpoint management, monitoring, troubleshooting, and Tier 3 support. Develops automation using PowerShell, Microsoft Graph API, and Power Automate. Documents solutions, collaborates with cybersecurity teams, coordinates with Microsoft Support, and mentors junior administrators.
Summary Generated by Built In
Job Title: Microsoft 365 Engineer
Location: U.S. Army War College (USAWC), Carlisle Barrack, PA
Employment Type: Full-Time
Position Summary
We are seeking an experienced Microsoft 365 Engineer to design, implement, support, and optimize enterprise Microsoft 365 solutions. The ideal candidate will possess deep technical expertise across the Microsoft 365 ecosystem, including Exchange Online, SharePoint Online, Teams, OneDrive, Entra ID (Azure AD), Intune, and Microsoft Purview. This role will be responsible for maintaining a secure, scalable, and highly available collaboration environment while driving automation, governance, and end-user productivity initiatives.
Key Responsibilities
· Administer and support Microsoft 365 services including:
Exchange Online Microsoft Teams SharePoint Online
OneDrive for Business Microsoft Intune Microsoft Defender
Microsoft Purview Microsoft Entra ID (Azure AD)
· Design and implement M365 solutions to improve collaboration, communication, and productivity.
· Manage tenant configuration, licensing, security policies, and compliance controls.
· Configure and maintain identity and access management solutions, including:
Single Sign-On (SSO) Multi-Factor Authentication (MFA)
Conditional Access Policies Identity Governance
· Perform M365 migrations, upgrades, and integrations.
· Develop automation solutions using:
PowerShell Microsoft Graph API Power Automate
· Monitor platform performance, availability, and security posture.
· Troubleshoot complex M365 service issues and coordinate with Microsoft Support when necessary.
· Implement data protection, retention, governance, and compliance policies.
· Support endpoint management through Microsoft Intune and Autopilot.
· Collaborate with cybersecurity teams to strengthen M365 security controls.
· Create and maintain technical documentation, operating procedures, and architecture diagrams.
· Provide Tier 3 escalation support and mentor junior administrators.
Required Qualifications
· Bachelor's degree in Information Technology, Computer Science, or related field (or equivalent experience).
· 5+ years of Microsoft 365 administration and engineering experience.
· CompTIA Security+ certification
· Strong experience with:
Exchange Online Microsoft Teams SharePoint Online
Entra ID (Azure AD) Intune
· Experience managing enterprise-scale M365 environments.
· Proficiency with PowerShell scripting and automation.
· Knowledge of Microsoft security and compliance solutions.
· Experience with hybrid identity environments and Active Directory.
· Strong troubleshooting, analytical, and problem-solving skills.
· Excellent communication and stakeholder management abilities.
Preferred Qualifications
Experience with:
Microsoft Purview Microsoft Defender Suite Power Platform
Zero Trust Architecture Azure Infrastructure Services
Preferred Qualifications
Microsoft 365 Certified Administrator Expert
Microsoft Certified: Identity and Access Administrator Associate
Microsoft Certified Security Administrator Associate
or
Microsoft Certified Endpoint Administrator Associate
Technical Skills
Microsoft 365
Exchange Online Microsoft Teams SharePoint Online
OneDrive for Business Microsoft Viva
Identity & Security
Microsoft Entra ID Conditional Access MFA
Identity Governance Privileged Identity Management (PIM)
Endpoint Management
Microsoft Intune Windows Autopilot
Mobile Device Management (MDM)
Mobile Application Management (MAM)
Automation
PowerShell Microsoft Graph API Power Automate
Compliance & Governance
Microsoft Purview Data Loss Prevention (DLP) Retention Policies
eDiscovery Information Protection
What We Offer
· Competitive salary and bonus opportunities
· Comprehensive medical, dental, and vision coverage
· 401(k) with company match
· Generous paid time off
· Professional development and certification reimbursement
· Flexible work arrangements
· Collaborative and innovative work environment
Skills Required
- Bachelor’s degree in Information Technology, Computer Science, or a related field, or equivalent experience
- 5+ years of Microsoft 365 administration and engineering experience
- CompTIA Security+ certification
- Strong experience with Exchange Online, Microsoft Teams, SharePoint Online, Entra ID, and Intune
- Experience managing enterprise-scale Microsoft 365 environments
- Proficiency with PowerShell scripting and automation
- Knowledge of Microsoft security and compliance solutions
- Experience with hybrid identity environments and Active Directory
- Strong troubleshooting, analytical, and problem-solving skills
- Excellent communication and stakeholder management abilities
- Experience with Microsoft Purview and Microsoft Defender Suite
- Experience with Power Platform
- Experience with Zero Trust Architecture
- Experience with Azure Infrastructure Services
- Microsoft 365 Certified Administrator Expert
- Microsoft Certified Identity and Access Administrator Associate
- Microsoft Certified Security Administrator Associate
- Microsoft Certified Endpoint Administrator Associate
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The Company
What We Do
Caelum Research Corporation is an SBA-certified HUBZone and woman-owned small business established in 1987. The company provides a broad range of information technology (IT) solutions, systems engineering, software development, data analytics, cybersecurity, and program management services. Caelum serves various U.S. federal government agencies, including the Department of Defense (DoD) and NASA, as well as commercial clients, delivering innovative solutions for mission-critical requirements.







