M365 Infrastructure Engineer

3Core Systems , Inc • Sterling, VA

4d • $140,000 • Onsite

About The Position

We're partnering with a well-established enterprise that is investing heavily in modern workplace technologies, automation, and artificial intelligence. They are adding a senior engineer who can own key Microsoft collaboration platforms while helping drive the next phase of their AI strategy. This is a highly visible, hands-on role where you'll design, implement, and continuously improve enterprise solutions—not simply maintain existing environments.

Requirements

• 5+ years of Microsoft infrastructure engineering experience in an enterprise environment.
• Strong background supporting Microsoft 365 services, Exchange Online, and hybrid messaging environments.
• Experience with identity and endpoint management technologies, including Microsoft Entra ID and Intune.
• Hands-on knowledge of enterprise email security, threat protection, and messaging administration.
• Experience administering secure email platforms such as Proofpoint, Mimecast, or similar technologies.
• Comfortable working with PowerShell and automation tools.
• Experience with Power Platform technologies, including Power Automate.

Nice To Haves

• Exposure to Microsoft Copilot, Azure AI services, or other enterprise AI initiatives is highly desirable.
• Someone who enjoys designing and implementing new solutions while helping shape long-term technology strategy.

Responsibilities

• Lead engineering efforts across the Microsoft 365 ecosystem.
• Support and enhance enterprise messaging and collaboration platforms.
• Build scalable automation to streamline IT operations and business processes.
• Strengthen email security, governance, and compliance.
• Help stand up and mature the organization's AI platform while evaluating new Microsoft AI capabilities.
• Partner with infrastructure, cybersecurity, and business stakeholders to deliver modern technology solutions.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed