Exchange Online Architecture Lead | Hybrid & Migrations

Bank of America; South Dakota; On-site; USD 141,000 - 205,000; Full time

Benefits offered by this job

Discretionary incentive eligible

Industry-leading benefits

Job summary

Bank of America seeks an experienced Enterprise Messaging Architect to define an architectural vision for complex Exchange Online solutions. The role drives migrations, mailbox topology, high availability, and secure mail flow while partnering with desktop, identity, and network teams to ensure seamless user experience.

The candidate will implement hybrid/online designs, governance, and compliance integrations, delivering scalable, resilient messaging across enterprise environments.

Qualifications

• 8+ years in enterprise messaging or collaboration architecture
• 4+ years hands-on experience with Exchange Online
• Deep expertise in: Exchange Server 2016/2019 (hybrid and coexistence)
• Exchange Online mail flow and transport
• Exchange Edge services
• Autodiscover, DNS, and SMTP architecture
• Email hygiene systems (DLP, Malware, Spoofing, Phishing, Tagging)
• Strong understanding of: Microsoft 365 identity integration
• Hybrid connectivity and network dependencies
• Client protocols (MAPI, REST, ActiveSync)
• Proven experience delivering large-scale migrations (10k+ mailboxes preferred)
• Strong understanding of: Throttling, concurrency, and migration optimization
• End-user impact management and communications

Responsibilities

• Works across the business, operations and technology to create the solution intent and architectural vision for complex solutions and prioritize functional and non-functional requirements into a technology backlog to enable the technology roadmap and functionality to support evolving capabilities and services
• Contributes to the creation of the architecture roadmap of defined domains (Business, Application, Data, and Technology) in support of the product roadmap and the development of best practices including standardized templates
• Clarifies the architecture, assists with system design to support implementation, and provides solution options to resolve any architectural impediments
• Facilitates solution driven discussions, leads the design of complex architectures, and finds creative solutions through knowledge of domain, practical experiments, and proof of concepts while ensuring architecture is flexible, modular, and adaptable
• Educates team members on the technology practices, standardization strategies, and best practices to create innovative solutions
• Supports the team as needed to select the technology stack required for solutions and helps select preferred technology products
• Performs design and code reviews to ensure all non-functional requirements are sufficiently met (for example, security, performance, maintainability, scalability, usability and reliability)
• Design and own Exchange Online architectures, including: Hybrid Exchange (Exchange 2016/2019 → Exchange Online)
• Coexistence and staged migration models
• Multi-geo tenant design and mailbox placement strategies
• High availability, disaster recovery, and service resilience
• Define standards for: Mailbox sizing and quotas
• Shared mailboxes, resource mailboxes, and service accounts
• SMTP relay and application integrations
• Transport rules and mail flow architecture
• Lead large-scale Exchange migrations, including: On-premises Exchange to Exchange Online
• Cross-forest or tenant-to-tenant migrations
• Public folder modernization or replacement
• Design and execution: Migration throughput and throttling strategies
• Cutover, staged, and hybrid migration plans
• Rollback and business continuity strategies
• Partner with desktop, identity, and network teams to ensure seamless end-user experience
• Architect secure messaging solutions aligned to enterprise standards: Email authentication (SPF, DKIM, DMARC)
• Anti-spam, anti-phishing, and malware protection
• Secure mail flow and transport encryption
• Integrate Exchange Online with: Microsoft Purview (retention, eDiscovery, DLP)
• Microsoft Defender for Office 365
• Microsoft Entra ID Conditional Access
• Support regulatory requirements such as: Legal hold and litigation workflows
• Journaling, retention, and supervision
• Data residency and cross-border considerations

Skills

Analytical Thinking

Architecture

Result Orientation

Solution Design

Technical Strategy Development

Application Development

Collaboration

Data Management

DevOps Practices

Risk Management

Agile Practices

Automation

Influence

Solution Delivery

Process

Test Engineering

Tools

Microsoft 365

Exchange Online

Job description

Bank of America seeks an experienced Enterprise Messaging Architect to define an architectural vision for complex Exchange Online solutions. The role drives migrations, mailbox topology, high availability, and secure mail flow while partnering with desktop, identity, and network teams to ensure seamless user experience.

The candidate will implement hybrid/online designs, governance, and compliance integrations, delivering scalable, resilient messaging across enterprise environments.