- Configure and manage Exchange Online and Microsoft 365 messaging services according to approved architecture
- Design, implement and troubleshoot mail-routing configurations across existing and target environments
- Configure and manage connectors, accepted domains, transport rules, recipient settings and mail-flow controls
- Establish and validate secure coexistence arrangements between messaging environments
- Prepare and execute mailbox and messaging-object migrations across pilot and production waves
- Develop migration plans and readiness checks
- Validate mailbox permissions, delegates, shared mailboxes, calendars, distribution groups and messaging dependencies
- Test and support mobile access and Outlook/client behaviour
- Implement and validate DNS changes supporting messaging services
- Configure and troubleshoot Autodiscover, SMTP relay and application mail-flow requirements
- Implement email-security and compliance configurations
- Support Defender for Office 365, anti-spam, anti-phishing and other messaging security controls
- Assess migration readiness using scripts and tooling
- Develop PowerShell automation for configuration, migration, validation, reporting and remediation
- Produce migration reporting covering progress, success rates, failures, exceptions and outstanding actions
- Monitor and troubleshoot mail-flow issues across internal and external systems
- Investigate complex messaging, identity, DNS, client and application-integration issues
- Support application and service teams with SMTP relay and messaging integrations
- Diagnose authentication and identity-related messaging issues
- Support cutover activities and service-continuity controls
- Contribute to rollback and recovery planning
- Provide early-life support after migration
- Produce technical documentation, configuration records, runbooks and knowledge-transfer materials for operational handover
Requirements
- Extensive hands‑on experience with Exchange Online and Microsoft 365 messaging
- Proven experience delivering mailbox migrations within complex enterprise environments
- Experience with tenant‑to‑tenant and/or hybrid Exchange migrations at scale
- Strong understanding of Exchange Online architecture and administration
- Strong knowledge of mail flow, connectors, accepted domains, transport rules and recipient configuration
- Strong understanding of DNS, Autodiscover and SMTP relay
- Experience managing mailbox permissions, delegates, shared mailboxes, calendars and distribution groups
- Experience troubleshooting Outlook, mobile access and other messaging clients
- Strong PowerShell and Exchange Online automation skills
- Experience using scripting and migration tooling to assess readiness, execute changes and report progress
- Good knowledge of email security, retention, compliance and Defender for Office 365
- Experience supporting application‑to‑email integration and SMTP relay requirements
- Strong troubleshooting capability across messaging, identity, DNS, client and application‑integration issues
- Experience supporting messaging migrations through pilot, production, cutover and early‑life‑support phases
- Strong testing and validation skills, with ability to produce clear test evidence
- Good documentation skills, including technical runbooks, configuration records and operational handover documentation
Core Competencies
Demonstrates extensive hands‑on experience with Exchange Online and Microsoft 365 messaging, including mailbox migrations and complex enterprise environments. Proficient in PowerShell automation, email security, and troubleshooting across messaging systems.
Highest-signal resume keywords
- Exchange Online Administration
- Mailbox Migration Expertise
- PowerShell Automation Skills
- Email Security Knowledge
- Troubleshooting Messaging Issues
ATS Optimization Keywords
Hard Skills
- Exchange Online
- Mailbox Migration
- PowerShell
- DNS Management
- SMTP Relay
- Mail Flow Configuration
- Transport Rules
- Messaging Security
- Application Integration
- Testing and Validation
Soft Skills
- Documentation Skills
- Problem‑Solving Capability
Industry Keywords
- Messaging Services
- Tenant‑to‑Tenant Migration
- Hybrid Exchange Migration
- Operational Handover
- Service Continuity
Tools & Technologies
- Microsoft 365
- Defender for Office 365
- Migration Tooling
- Outlook
- Mobile Access
#J-18808-Ljbffr
M365 Engineer employer: Jobtailor
As a Client Services Coordinator at our dynamic company, you will thrive in a supportive work culture that prioritises employee growth and development. We offer comprehensive training, opportunities for advancement, and a collaborative environment where your contributions are valued. Located in a vibrant area, our team enjoys a healthy work-life balance and the chance to engage with diverse clients, making every day rewarding and meaningful.
