Senior O365 Messaging Engineer

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🕒 June 2

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Jones Lang LaSalle Americas, Inc.

WebsiteLinkedInAll Job Openings

10,000+ employees

We provide commercial real estate services for corporations and investors across the globe that save money, increase productivity and improve sustainability.

📋 Description

• Support administration and management of the O365 messaging infrastructure, including both Exchange Online and on-premises environments, to ensure availability and performance. • Provide technical expertise and guidance in O365 messaging, primarily focused on Exchange. • Responsible for Proofpoint and Defender configuration and internal alignment on best practice operations. • Assist with regular management reporting and provide telemetry to track service health and progress against operational goals. • Work with third-party providers to ensure O365 messaging services are delivered in alignment with service level agreements and quality expectations. • Support cost optimization efforts and help manage the O365 messaging budget in line with organizational targets. • Ensure the messaging infrastructure is maintained according to business requirements, industry standards, and best practices. • Follow and enforce O365 messaging policies, procedures, and governance frameworks. • Troubleshoot and resolve complex or escalated O365 messaging incidents, problems, changes, and requests, acting as an escalation point for support issues. • Provide technical support and guidance to end users and stakeholders for O365 messaging-related issues. • Participate in O365 messaging projects and initiatives, such as tenant migrations, integrations, and service improvements, from planning through to execution. • Creates, tests and manages scripts as needed for management and administration.

🎯 Requirements

• Bachelor's degree in Computer Science, Information Technology, or related field. • At least 7 years of experience in O365 messaging engineering and administration. • Strong knowledge of Exchange Online (Microsoft 365) administration and hybrid Exchange deployments including Microsoft Exchange Server (2016/2019) architecture, installation, and upgrades • Strong knowledge of mail flow design, connectors, transport rules, and routing • Expert knowledge of Microsoft Defender for Office 365 , Microsoft Purview Suite and Proofpoint including Mail Protection, TAP, EFD, threat analysis, eDiscovery, retention, DLP & Legal hold processes • Strong knowledge and skills in O365 Email security (anti-spam, anti-malware, phishing protection), role-based access control (RBAC), TLS, certificates • Strong knowledge of email transport security including DMARC, DKIM, SPF and how these can effect mail delivery • Experience with cross‑tenant migrations and coexistence strategies including integration with third‑party email security, archiving & Migration tools (e.g MigrationWiz, AvePoint Fly, Quest QMM) • Experience with Intune - Mobile Device Management, including understanding of ABM, Google Enterprise, Compliance , Configuration and App protection policies • Knowledge of Teams, SharePoint, and OneDrive dependencies on Exchange • Knowledge of capacity planning, performance tuning and patch management • Experience with monitoring tools and alerting (Microsoft and third‑party) • Strong Scripting skills i.e PowerShell (Exchange, Microsoft 365, Azure AD modules) • Strong communication, collaboration and stakeholder management skills, both verbal and written. • Strong analytical, troubleshooting and critical thinking skills using logs, message traces, and PowerShell diagnostics • Preference will be given to candidates who have one or more of the following Microsoft certifications: Microsoft 365 Certified: Messaging Administrator Associate, Microsoft 365 Certified: Enterprise Administrator Expert, or Microsoft 365 Certified: Teams Administrator Associate.

🏖️ Benefits

• Health insurance • Flexible working hours • Professional development opportunities