Infrastructure Engineer II (Microsoft 365 and Exchange)

Travelers•Hartford, CT

2d•Hybrid

About The Position

Travelers is seeking an Infrastructure Engineer II to join our organization as we grow and transform our Enterprise Technology Solutions organization. The Infrastructure Engineers II focuses on administering and improving enterprise Microsoft 365 messaging and collaboration services. The position combines Exchange, Teams, automation, troubleshooting, security, compliance, and project delivery responsibilities.

Requirements

Bachelor’s degree in Computer Science, or its equivalent in work experience.
5 years of relevant Infrastructure or Systems Engineering experience.
Substantial Exchange hybrid and Teams expertise, and experience with SharePoint Online and OneDrive for Business.
Required technical knowledge spans Exchange architecture, Teams policies and voice, Azure AD identity and security, Conditional Access, MFA, PowerShell, Windows Server, Active Directory, DNS, networking, and monitoring.
Bachelor’s degree in computer science, related STEM field, or its equivalent in work experience plus 4 years of infrastructure engineering experience.

Nice To Haves

Microsoft certifications
advanced Microsoft 365 services
third-party administration tools
enterprise or regulated-industry experience
leadership of migrations or upgrade projects

Responsibilities

Manages Exchange Online and on-premises Exchange Server in a hybrid environment, including Azure AD Connect, mail flow, mailboxes, distribution groups, routing policies, server health, queues, retention, and archiving.
Administers enterprise Teams policies, meetings, client updates, and Teams Phone System capabilities such as Direct Routing, dial plans, call queues, normalization rules, and E911 services.
Maintains integrations with Exchange, SharePoint, and OneDrive.
Utilizes PowerShell automation for onboarding and offboarding, license and mailbox setup, Teams configuration, batch changes, health reporting, usage analysis, monitoring, configuration management, patching, and backups.
Provides Tier 3 troubleshooting, performs root cause analysis, and manages escalations to Microsoft Support.
Plans and executes Exchange updates, mailbox migrations, new Microsoft 365 feature deployments, and possible tenant-to-tenant migrations through testing and change-management processes.
Requires detailed documentation, runbooks, training, and collaboration with Network, Security, and Help Desk teams.