Global Messaging Architect

Endeavor

. Define and maintain global messaging architecture across Exchange Online, M365, and integrated security/compliance platforms .

Posted 9/28/2026full-timeRemote • New York • United StatesSeniorLead💰 $135,000 - $180,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in defining and maintaining global messaging architecture, ensuring compliance with regulatory standards, and leading identity and access management strategies in large-scale hybrid environments. Proficient in architecting secure messaging services and integrating collaboration tools while optimizing performance and governance.

Highest-signal resume keywords

Microsoft 365 ExpertiseIdentity And Access ManagementMessaging Architecture DesignRegulatory ComplianceAnti-Phishing Solutions

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Exchange OnlineMicrosoft Active DirectoryOkta Identity CloudMicrosoft Entra ID / Azure ADSPF/DKIM/DMARC ImplementationMail Routing ArchitectureDomain ConsolidationHybrid CoexistencePerformance OptimizationMonitoring Frameworks

Soft Skills

LeadershipMentoringStrategic AdvisingCollaboration

Tools & Technologies

TeamsSlackZoomMimecastProofpointMicrosoft Defender for Office 365

Certifications & Qualifications

Microsoft Exchange Server 2019 / Exchange Online ExpertMimecast Certified Specialist / EngineerMicrosoft Certified: Identity And Access Administrator Associate (SC-300)Microsoft Certified: Azure Solutions Architect ExpertCISSPGIAC Certifications

Industry Keywords

SOXPCIGDPRPIPLHIPAAM&ARebrandingLitigation HoldsIdentity GovernancePrivileged Access

Tech Stack

Tools & technologies

AzureCloud

About the role

Key responsibilities & impact

Define and maintain global messaging architecture across Exchange Online, M365, and integrated security/compliance platforms
Develop and enforce governance models, standards, and best practices for secure, scalable messaging services
Lead messaging strategy through M&A, divestiture, and rebranding initiatives
Architect and oversee global mail routing, security filtering, SPF/DKIM/DMARC authentication, and hybrid coexistence
Direct engineering teams on monitoring, troubleshooting, and performance optimization for mail and calendaring systems
Partner with Global Security Operations on phishing defense, vulnerability patching, and threat detection
Provide architectural leadership for integrations with Teams, Slack, Zoom, and other collaboration tools
Ensure compliance with SOX, PCI, GDPR, PIPL, and HIPAA through secure design and retention/eDiscovery controls
Establish architecture for journaling, litigation holds, retention, and regulatory reporting with Legal and Compliance
Govern role-based administration, privileged access, and identity controls across messaging platforms
Serve as enterprise subject matter expert for messaging and influence cross-functional roadmaps and vendor strategy
Advise executives and senior leadership on risk, cost optimization, and strategic messaging investments
Mentor engineers and administrators and promote best practices

Requirements

What you’ll need

Bachelor’s degree in computer science, Information Technology, Engineering, or a related field, or equivalent hands-on experience
8+ years of experience in identity and access management and enterprise infrastructure
Experience leading identity architecture and delivery for large-scale, hybrid environments
Expert-level proficiency with Microsoft 365, including Exchange Online, Teams Online, and SharePoint Online
Expert-level proficiency with Google Workspace
Expert-level proficiency with Okta Identity Cloud, including SSO, MFA, Workflows, Lifecycle Management, and Identity Governance
Expert-level proficiency with Microsoft Active Directory, including forest/domain design, GPOs, trusts, and replication
Expert-level proficiency with Microsoft Entra ID / Azure AD, including hybrid join, conditional access, and identity federation
Experience with messaging separation or integration during complex M&A events
Experience with domain consolidation, rebranding, and tenant-to-tenant migrations
Experience architecting mail routing and coexistence between acquired/divested entities
Experience implementing SPF, DKIM, DMARC, MTA-STS, and DANE
Experience with anti-phishing and advanced threat protection platforms such as Mimecast, Proofpoint, and Microsoft Defender for Office 365
Experience building global monitoring and alerting frameworks for messaging health, performance, and mail flow
Preferred certifications include Microsoft Exchange Server 2019 / Exchange Online Expert, Mimecast Certified Specialist / Engineer, Microsoft Certified: Identity and Access Administrator Associate (SC-300), Microsoft Certified: Azure Solutions Architect Expert, CISSP, GIAC certifications, and Zero Trust Architecture, PIM/PAM Design, or IAM Governance training/certification

Benefits

Comp & perks

Base rate
Short- and long-term incentives, as applicable
Growth and developmental opportunities
Health care
Retirement
Vacation and other paid time off
Additional offerings
Reasonable accommodations for qualified individuals with disabilities