Senior Systems Administrator

Senior Systems Administrator

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An SEI-er is a master communicator and active listener who understands how to navigate an audience. Self‑aware, almost to a fault, SEI-ers keenly understand how to adjust their support and problem‑solving based on the situation. Following a logical, fact‑based approach, SEI-ers possess the superior ability to see correlations others may not, ask the right questions and drive solutions.

The Senior Systems Administrator is responsible for supporting and evolving SEI’s cloud‑first technology foundation, ensuring secure, reliable, and scalable systems that enable over 600 employees across 14 offices nationwide. This role is part of SEI’s Shared Services organization and plays a critical role in empowering employees through modern technology, strong security practices, and continuous process improvement.

This position is hands‑on and autonomous by design, ideal for a Microsoft‑focused systems administrator who enjoys ownership, problem‑solving, and proactively improving environments. The role is hybrid and requires candidates to live in the greater Cincinnati area.

Microsoft Cloud & Systems Administration

• Administer, optimize, and support SEI’s Microsoft ecosystem, including Microsoft 365, Azure, Entra , and endpoint management platforms.

Security Operations & Identity Management

• Support and enhance SEI’s security posture through identity, access, endpoint, and email security initiatives aligned with internal policies and best practices.

Operational Efficiency & Process Improvement

• Identify opportunities to streamline systems, automate workflows, improve documentation, and reduce friction across internal technology processes.

Project Ownership & Vendor Collaboration

• Lead or co‑lead application implementations, upgrades, migrations, and proof‑of‑concept initiatives, partnering with vendors as needed.

End User Enablement & Escalation Support

• Provide occasional Tier 2/3 support for complex issues, ensuring system reliability and strong end‑user experiences.

• Strong experience administering Microsoft 365 services, including Teams, SharePoint, One Drive, Exchange Online, and Entra .
• Hands‑on experience managing Azure resources and cloud configurations.
• Solid experience with Intune for Windows and macOS endpoint management.
• Ability to troubleshoot complex issues independently in a cloud‑first environment.

• Experience supporting or administering Microsoft Defender and related security tooling.
• Knowledge of identity management, MFA, conditional access, and access controls.
• Comfort implementing security controls aligned with internal policies and governance standards.

• Proven ability to work autonomously while collaborating effectively with teammates and stakeholders.
• Strong documentation habits, including SOPs and knowledge base materials.
• Interest in improving systems and workflows through light automation (e.g., Power Automate).

• Clear communicator with both technical and non‑technical users.
• Team‑oriented mindset, thriving in a Shared Services environment where success is measured by enabling others.
• Strong judgment, problem‑solving skills, and ability to prioritize effectively.

• Hybrid work model with flexible onsite expectations; candidates must be local to the greater Cincinnati area.
• Fully cloud‑based environment with no legacy on‑prem infrastructure.
• Occasional after‑hours support