Staff M365 Platform Engineer & Owner

Confirmed live in the last 24 hours

IonQ

Compensation

$131,962 - $172,773/year

Remote, US

Remote

Posted March 31, 2026

Job Description

About IonQ:

IonQ, Inc. [NYSE: IONQ] is the world’s leading quantum company delivering solutions to solve the world’s most complex problems. IonQ’s newest generation quantum computers, IonQ Tempo and IonQ Forte Enterprise, are the latest in cutting-edge systems that have been helping customers and partners such as Amazon Web Services, AstraZeneca, and NVIDIA achieve 20x performance results. The company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance in 2025.

The company is accelerating its technology roadmap and intends to deliver the world’s most powerful quantum computers with 2 million qubits by 2030 to accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. IonQ’s advancements in quantum networking position the company as a leader in building the quantum internet.

IONQ is seeking a Staff M365 Platform Engineer & Owner to serve as the primary technical lead and operational steward for our Microsoft 365 GCC High ecosystem. This role is designed for a high-level individual contributor who can bridge the gap between strategic governance and deep technical execution. You will own the technical roadmap for our tenant while personally driving the complex configurations, migrations, and automations required to maintain a secure, compliant, and high-performing environment.

Responsibilities:

Platform Ownership & Engineering

Tenant Stewardship: Act as the primary technical owner for the M365 GCC High tenant, ensuring all workloads (Exchange, SharePoint, Teams, Entra ID) are integrated and optimized.
Hands-on Administration: Lead the technical configuration of mail flow, transport rules, and DNS for Exchange Online, ensuring GCC High compliance and reliability.
Automation & Scripting: Build and maintain PowerShell scripts and Graph API integrations to automate lifecycle management, site provisioning, and security auditing.
Governance Implementation: Translate high-level governance policies into technical controls, including DLP, Conditional Access, and retention labels.

Migration & Integration (M&A)

Technical Execution: Lead the hands-on migration of identities and data (mailboxes, drives, sites) during Mergers and Acquisitions, utilizing tools like ShareGate or BitTitan.
Mail Flow Design: Design and validate complex mail routing and shared/resource mailbox mapping during tenant consolidations.
Vendor Validation: Review and validate the technical deliverables of external partners to ensure they meet IONQ’s engineering and compliance standards.

Operational Excellence

Tier 3 Support: Serve as the final escalation point for complex technical issues involving mail routing, identity synchronization, or platform performance.
Service Lifecycle: Manage the rollout of new M365 features, assessing their impact on the GCC High environment and security posture.
Documentation: Create and maintain technical runbooks, architectural diagrams, and standard operating procedures (SOPs).

You’d be a good fit with:

Platform Depth: 6-8+ years of hands-on experience managing M365/Exchange Online in an enterprise environment.
GCC High Expertise: Proven experience operating within sovereign cloud boundaries (GCC/GCCH) and understanding their specific technical limitations.
Identity & Security: Strong proficiency in Entra ID (Azure AD), including identity synchronization, application registrations, and security/compliance center configurations.
Scripting Mastery: Expert-level PowerShell skills for managing M365 workloads at scale.
M&A Experience: Direct experience executing at least one major tenant-to-tenant migration.
Education: Bachelor’s degree in Computer Science, Information Systems, or a related technical field.
Compliance: Familiarity with NIST 800-171, CMMC, or DFARS 7012 requirements.
Clearance: Must be a U.S. Citizen and be eligible to obtain and maintain a U.S. government securit