[Remote] Messaging & Cloud Collaboration Engineer (O365/Exchange/Email Migration)

Note: The job is a remote job and is open to candidates in USA. Optomi is seeking an experienced, infrastructure-focused Messaging & Cloud Collaboration Engineer to support enterprise Microsoft 365 messaging operations and Exchange administration. The role will execute email and tenant migrations, troubleshoot mail flow and messaging issues, and collaborate with infrastructure, identity, security, and collaboration teams on transformation and acquisition-related initiatives.

Responsibilities

• Support Exchange Online, on-premises Exchange, and hybrid messaging environments
• Execute mailbox, email, and tenant-to-tenant Microsoft 365 migrations
• Configure and troubleshoot mail flow, SMTP, connectors, transport rules, and email routing
• Support migration from Proofpoint to Microsoft Defender for Office 365 and Abnormal Security
• Assist with Microsoft 365 tenant consolidation, identity alignment, and directory synchronization
• Troubleshoot complex messaging and migration issues while minimizing business disruption
• Collaborate with infrastructure, identity, security, and collaboration teams on migration and operational activities
• Document configurations, procedures, technical findings, and remediation activities

Skills

• 7+ years of enterprise messaging or Exchange engineering experience
• Strong hands-on experience with Microsoft 365 and Exchange Online
• Experience with on-premises and hybrid Exchange environments
• Experience supporting large-scale Microsoft 365 and email migration projects
• Experience with tenant-to-tenant migrations and/or M&A integration initiatives
• Strong knowledge of email routing, mail flow, SMTP, connectors, and transport rules
• Experience with Entra ID/Azure AD and directory synchronization
• Strong enterprise troubleshooting and operational support skills
• Experience with Microsoft Defender for Office 365, Proofpoint, or Abnormal Security
• Experience supporting large, multi-tenant or global enterprise environments
• Working knowledge of SharePoint Online and Microsoft Teams

Benefits

• Contract with potential extensions
• Fully Remote

Company Overview

OPTOMI is an IT staffing firm that serves its consultants, clients, and employees through its consultant-focused approach. It was founded in 2012, and is headquartered in Roswell, Georgia, USA, with a workforce of 501-1000 employees. Its website is http://www.optomi.com/.

Company H1B Sponsorship

Optomi has a track record of offering H1B sponsorships, with 7 in 2025, 6 in 2024, 2 in 2023, 5 in 2022, 8 in 2021, 7 in 2020. Please note that this does not guarantee sponsorship for this specific role.