Sr Enterprise Msg Spec II

Messaging & Collaboration Administrator

Jeppesen Fore Flight builds industry-leading aviation software used by pilots, aircraft operators, and major airlines worldwide. As a high-growth, private equity-backed company, we are focused on scaling our operations, strengthening our financial infrastructure, and driving operational excellence across the business. Our team combines deep domain expertise with a collaborative, high-performance culture to solve complex challenges and support continued growth.

We are seeking a Messaging & Collaboration Administrator to own the day-to-day operation, coexistence management, and ongoing evolution of Jeppesen's corporate email environment. This is a hands-on administration role at a pivotal point in the company's post-divestiture transformation: the primary responsibility is executing the migration of an aging on-premises Microsoft Exchange environment into our Microsoft 365 tenant, while maintaining reliable mail delivery across a complex, multi-platform coexistence landscape.

The environment currently spans three platforms managed in parallel:

• Microsoft Exchange (on-premises) — a legacy server that supports a significant volume of production and external-facing business processes. Migration of mailboxes and services into M365 is the primary near-term project for this role, with the eventual goal of decommissioning the on-prem environment entirely.
• Microsoft 365 (Exchange Online) — our target productivity platform and future primary mail system.
• Google Workspace (Gmail) — the current productivity platform for a wholly-owned but not yet fully integrated subsidiary. This environment is modern and stable; separation of its mail domain from the primary domain is a longer-horizon effort.
• Proofpoint — serving as the coexistence "traffic cop," routing mail between platforms based on group-based policies during the transition period. Proofpoint is a critical dependency until the Exchange migration is substantially complete.

This role operates as a collaborative partner — not a sole authority — working closely with the Security, End User Services, Network, and broader IT teams. The successful candidate understands email security concepts and can implement controls as directed, but is not expected to independently design security architecture. When not engaged in messaging administration, this person will contribute to general End User Services support alongside the broader EUS team.

Key Responsibilities

Exchange Migration & M365 Buildout (Primary Near-Term Focus)

• Plan and execute the migration of mailboxes, shared mailboxes, distribution groups, and related configurations from on-premises Exchange to Exchange Online / M365.
• Identify and document production business processes and external-facing mail flows dependent on the on-prem environment; coordinate with business stakeholders to remediate or migrate each dependency prior to cutover.
• Validate mail flow, routing, and delivery integrity throughout migration phases; manage cutover events with minimal user disruption.
• Contribute to the decommission plan for the on-premises Exchange server, ensuring a clean, well-documented transition to the cloud-centric operating model.
• Configure and maintain Exchange Online settings including transport rules, connectors, hybrid configuration, and mail-flow policies as needed throughout the coexistence period.

Proofpoint Coexistence & Mail Routing

• Administer Proofpoint as the central routing layer directing mail between on-prem Exchange, Exchange Online, and Google Workspace under the shared primary mail domain.
• Maintain and update group-based routing policies in Proofpoint as mailboxes migrate and the user population shifts between platforms.
• Troubleshoot mail flow issues across the coexistence topology, including delivery failures, routing anomalies, and quarantine events.
• Implement and maintain email security controls in Proofpoint (anti-spam, anti-phishing, anti-malware, sandboxing) in coordination with and per guidance from the Security team.
• Monitor Proofpoint dashboards and logs proactively; escalate security events to the Security Operations team as appropriate.

M365 & Google Workspace…