Principal M365 Exchange & Collaboration Architect

Minimum

Clearance Required:

None

Job

Location: REMOTE WORK, VA, US

Date Posted:

Category: Information Technology

Subcategory: Sys Administrator

Schedule: Full-time

Shift: Day Job

Travel: No

Clearance Level Must Be Able to Obtain: Public Trust

Potential for Remote Work: Yes

We are seeking a highly experienced Principal M365 and Exchange Architect to support a federal customer in designing, operating, and modernizing enterprise collaboration, messaging, and identity platforms. This role provides architectural leadership and hands‑on technical expertise across Microsoft 365, Exchange (SE and Online), Entra , Teams, and hybrid cloud environments in a highly regulated setting. The ideal candidate will function as a technical authority and trusted advisor to government stakeholders, leading architecture decisions, large‑scale migrations, and platform optimization efforts while ensuring security, compliance, and operational excellence.

• Serve as the lead architect for Microsoft 365, Exchange, and collaboration services in support of a federal customer.
• Design and maintain enterprise reference architectures, standards, and patterns for hybrid and cloud‑based collaboration systems.
• Provide architectural guidance aligned with federal security, compliance, and governance requirements.
• Evaluate Microsoft roadmap features and recommend adoption strategies based on mission needs.

• Provide senior‑level administration and architectural oversight of Exchange SE and Exchange Online environments.
• Architect and manage mail flow, security, compliance, retention, and eDiscovery solutions.
• Lead and support enterprise migrations, including hybrid‑to‑cloud transitions and tenant consolidations.
• Architect, configure, and support Microsoft Teams deployments, integrations, and lifecycle management.

• Design and support hybrid identity solutions using Entra  Entra .
• Implement and maintain identity synchronization, access controls, and governance policies.
• Support conditional access, privileged identity management, and zero trust initiatives in coordination with security teams.

• Design and maintain Power Shell‑based automation frameworks to improve operational efficiency and reliability.
• Develop scripts and tools for administration, monitoring, reporting, and compliance validation.
• Apply engineering best practices to scripting, version control, and documentation.

• Support Azure and VMware environments hosting collaboration and identity workloads.
• Provide guidance on capacity planning, performance optimization, patching, and lifecycle management.
• Ensure infrastructure configurations align with architectural standards and security requirements.

• Act as technical lead on task orders, projects, and modernization initiatives.
• Collaborate with government stakeholders to translate requirements into implementable technical designs.
• Support Service Now workflows, including complex incidents, problems, and changes.
• Provide technical input to project plans, schedules, and risk mitigation strategies.

• Produce and maintain architecture diagrams, design documents, SOPs, and operational runbooks.
• Support audits, assessments, and compliance activities through accurate documentation.
• Contribute to architecture reviews and change control boards.

• Mentor junior contractor staff and provide technical escalation support.
• Promote knowledge transfer and operational continuity for government personnel.

• 10+ years of enterprise experience supporting Microsoft Exchange, M365, and identity platforms.
• Demonstrated experience in architecting and supporting large‑scale, hybrid environments.
• Experience supporting federal or highly regulated customers preferred.

• Expert knowledge of Exchange SE and Exchange Online.
• Strong experience with Entra  Entra .
• Hands‑on administration and architecture experience with Microsoft Teams.
• Advanced Power Shell scripting…