What are the responsibilities and job description for the Senior Messaging Engineer position at CorSource?
Position requires US citizenship and the ability to clear a government background screen.
Overview
We are seeking a senior-level Systems Administrator to support enterprise Microsoft cloud and messaging platforms within a regulated, mission-critical IT environment. This role focuses on Microsoft 365, Exchange Online, hybrid Exchange systems, identity management, and secure collaboration services.
This is a fully remote position; candidates must reside in Washington, Oregon, Idaho, or Montana.
What You’ll Do
- Administer and support Exchange Online, M365, Teams, OneDrive, Entra ID, Defender, and Purview
- Manage hybrid Exchange and on-prem messaging systems
- Support identity, access management, and secure service integrations
- Participate in incident response, ITSM workflows, and on-call rotations
- Collaborate with cybersecurity, VoIP, network, and help desk teams
- Support compliance efforts including eDiscovery and litigation holds
- Maintain documentation, security controls, and operational standards
What We’re Looking For
- 8 years of IT experience with a relevant degree, or 10 years without
- Hands-on experience administering Microsoft cloud and messaging platforms
- Strong troubleshooting skills in hybrid and cloud environments
- Scripting experience (PowerShell preferred)
- Experience supporting large, secure, or regulated environments
Preferred Experience
- Teams Phone / Direct Routing
- Email security and SMTP filtering
- PKI and certificate management
- High-availability enterprise systems