Infrastructure Engineer

Description
We are looking for an experienced Infrastructure Engineer to lead the administration and strategic improvement of a Microsoft 365 environment in Dublin, Ohio. This role combines day-to-day platform ownership with security, governance, and performance oversight across core cloud collaboration and identity services. The ideal candidate brings strong technical depth, a proactive approach to operational excellence, and the ability to work effectively with internal stakeholders and external technology partners.

Responsibilities

Oversee the daily administration, configuration, and continuous improvement of Microsoft 365 services such as Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID, and Intune. Monitor service health, usage trends, licensing, and capacity needs to maintain a stable, efficient, and scalable collaboration environment. Manage identity and access controls by supporting authentication policies, Conditional Access, and hybrid identity solutions across the enterprise.

Establish and maintain security, compliance, and governance standards within the Microsoft 365 ecosystem to support organizational and regulatory expectations. Work closely with infrastructure, security, and external service providers to resolve complex platform issues and maintain reliable service delivery. Serve as the senior technical escalation resource for Microsoft 365-related incidents, problems, and vendor coordination. Lead initiatives that enhance the platform through modernization, migrations, feature rollouts, and roadmap-driven improvements.

Create automation and scripting solutions to streamline administration, improve consistency, and reduce manual effort. Develop clear technical documentation and promote end-user adoption of new capabilities and best practices across the organization. Requirements
Bachelor's degree in Information Technology, Computer Science, or comparable relevant experience. At least 5 years of hands-on experience administering Microsoft 365 in a large or complex enterprise setting.

Strong expertise with Exchange Online, Teams, SharePoint Online, OneDrive, Entra ID, Intune, and related Microsoft cloud technologies. Demonstrated experience with identity and access management, including Conditional Access and hybrid identity environments. Proficiency in PowerShell scripting and automation for infrastructure or platform administration. Working knowledge of Microsoft security, compliance, governance, and endpoint management capabilities. Experience collaborating with managed service providers, vendors, or other third-party technology partners.

Microsoft 365 certifications, such as Enterprise Administrator Expert, and experience in regulated industries are preferred. Technology Doesn't Change the World, People Do. Robert Half is the world's first and largest specialized talent solutions firm that connects highly qualified job seekers to opportunities at great companies. We offer contract, temporary and permanent placement solutions for finance and accounting, technology, marketing and creative, legal, and administrative and customer support roles. Robert Half works to put you in the best position to succeed.

We provide access to top jobs, competitive compensation and benefits, and free online training. Stay on top of every opportunity - whenever you choose - even on the go. Download the Robert Half app and get 1-tap apply, notifications of AI-matched jobs, and much more. All applicants applying for U.S. job openings must be legally authorized to work in the United States. Benefits are available to contract/temporary professionals, including medical, vision, dental, and life and disability insurance. Hired contract/temporary professionals are also eligible to enroll in our company 401(k) plan.

Visit roberthalf.gobenefits.net for more information.
2025 Robert Half. An Equal Opportunity Employer. M/F/Disability/Veterans. By clicking "Apply Now," you're agreeing to Robert Half's Terms of Use and Privacy Notice.