Senior Exchange Engineer

Meriton is a national team of experts driving HVAC innovation through a network of high-performing companies. From strategy and support to systems and solutions, we work behind the scenes to strengthen operations and build value—for our partners and our people.If you’re looking to make an impact, we’re glad you’re here. At Meriton, you’ll join a team that believes in big ideas, doing great work, and building careers that matter—every step of the way. Position Description Job Title: Senior Exchange EngineerReports To: Senior Manager, Workforce ProductivityFLSA Status: ExemptLocation: Irving, TX; Phoenix, AZ; or Tampa, FL Summary:The Senior Exchange Engineer serves as a deep technical expert responsible for the engineering, administration, architecture, migration, and advanced support of the company's Microsoft Exchange and Microsoft 365 messaging environment. This role owns Exchange Online, Hybrid Exchange, mail flow, tenant-to-tenant migrations, and messaging-related integrations, ensuring the environment remains secure, reliable, scalable, and aligned with enterprise standards.This role works closely with the Workforce Productivity, Service Delivery, Infrastructure, Identity, and Cybersecurity teams, serving as an advanced technical escalation point for complex Exchange and messaging issues while maintaining clear accountability for platform engineering and operational excellence. This position requires travel to Meriton locations and customer sites across the U.S. Essential Duties and Responsibilities:Exchange Engineering and Platform AdministrationOwn the design, administration, and troubleshooting of enterprise-scale Microsoft Exchange Online and Hybrid Exchange environmentsDrive technical decisions on Exchange architecture, configuration, platform health, resiliency, and lifecycle managementManage mailboxes, shared mailboxes, distribution groups, resource mailboxes, permissions, transport rules, and related messaging servicesEnsure reliable SMTP routing, connectors, accepted domains, Autodiscover, and hybrid mail flow through proactive configuration and troubleshootingMaintain technical standards, documentation, configuration baselines, and operational procedures for Exchange servicesExchange Migration and IntegrationLead complex Exchange migrations, including on-premises to Exchange Online, tenant-to-tenant, Hybrid Exchange, and cross-forest or cross-organization migrationsOwn migration assessments, planning, coexistence configuration, pilot migrations, cutovers, validation, and post-migration stabilizationDrive integrations between Exchange and other Microsoft 365, identity, collaboration, and enterprise platformsEvaluate and apply native Microsoft migration capabilities and third-party migration tools where appropriateService Model and Operational ExcellenceServe as the L2/L3 escalation point for Service Delivery on complex Exchange, mail-flow, mailbox, authentication, and messaging-related incidentsLead troubleshooting and root-cause analysis for critical messaging outages and recurring service issuesDrive service reliability, platform health, change discipline, documentation, and production support readinessDevelop and maintain PowerShell-based automation for Exchange administration, reporting, migrations, and bulk operationsPartner with Microsoft and other technology vendors to resolve complex platform issuesSecurity and Cybersecurity AlignmentPartner closely with Cybersecurity to ensure Exchange services and configurations align with enterprise security requirementsOwn messaging-related security configurations, including SPF, DKIM, DMARC, anti-spam, anti-phishing, and mail-flow protections, based on established security standardsEnsure Exchange-related identity, authentication, permissions, and access-control requirements are met in coordination with Identity and Cybersecurity teamsProvide Exchange engineering support during cybersecurity investigations and incidents involving messaging systemsMaintain clear separation between Exchange platform administration and Cybersecurity ownership of security policy, governance, and security operationsOther DutiesRegular, consistent and necessary to meet the needs of the businessAssists the leadership team and other team members with various research projects and/or special projectsPerforms other duties and responsibilities as assignedMust conduct self in an ethical, legal, and responsible manner at all timesMust adhere to the policies, principles, and guidance within the Employee Handbook and Code of Conduct Education/Experience:Required:7+ years of progressive IT experience with significant hands-on experience supporting Microsoft Exchange and Microsoft 365 messaging environmentsDeep technical expertise in Exchange Online, Hybrid Exchange, and Microsoft Exchange ServerDemonstrated experience executing large-scale Exchange migrations, particularly on-premises-to-cloud and tenant-to-tenant migrationsStrong knowledge of Exchange architecture, SMTP, mail routing, connectors, accepted domains, Autodiscover, and mailbox managementStrong PowerShell scripting and automation skillsWorking knowledge of Microsoft Entra ID, Entra ID Connect, authentication, and identity synchronizationExperience troubleshooting complex enterprise messaging, mail-flow, authentication, and migration issuesDemonstrated success working with Service Delivery teams while maintaining accountability for engineering and advanced escalationStrong documentation, communication, collaboration, and problem-solving skillsWilling to be hands-on and resolve complex technical issues directlyPreferred:Experience with third-party migration platforms such as Quest, BitTitan MigrationWiz, AvePoint, or similar technologiesKnowledge of Microsoft Defender for Office 365 and messaging-related security controlsFamiliarity with Microsoft Purview, including retention, eDiscovery, litigation hold, and Exchange-related compliance capabilitiesExperience with other Microsoft 365 platforms, including Teams, SharePoint Online, OneDrive, and Power PlatformFamiliarity with enterprise security, compliance, governance, and service-management practicesStrong analytical, troubleshooting, and operational support capabilities Work EnvironmentThe work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individualswith disabilities to perform the essentials functions. The noise level in the work environment is usually moderate. The workplace is in a corporate office environment and the temperature in the work environment is usually moderate. The position’s primary office is the Shared Services; however, telework or work at home, on the road, or in a satellite location for portions of the workweek may occur, depending upon project needs and requirements in coordination with your direct supervisor and/or most senior leader of your department. Some travel may be required. Physical Demands:The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable the individuals with disabilities to perform the essentials functions.Must be able to walk, bend, stand, and reach constantly during a workday.Must be able to lift 15 – 20 lbs.Standing for long periods of time (4-5 hours) occasionallyMust be able travel via plane or car to events Employment practices will not be influenced or affected by an applicant’s or employee’s race, color, religion, sex (including pregnancy), national origin, age, disability, genetic information, sexual orientation, gender identity or expression, veteran status or any other legally protected status. Reasonable accommodations will be made for qualified individuals with disabilities unless doing so would result in an undue hardship.Salary ranges listed are dependent upon a candidate’s qualifications, experience, internal equity, and the budgeted amount for the specific role and location.