Sr. Systems Administrator

Our client is seeking a Senior Systems Administrator to help manage and expand its Microsoft 365 technology environment, with a particular focus on Power Platform, AI enablement, identity integrations, and enterprise application connectivity. This is a hands-on role for someone who enjoys working at the intersection of systems administration, cloud platforms, security, automation, and emerging AI technologies. The successful candidate will help establish and maintain a secure and scalable Microsoft environment while partnering with technical teams and business users to turn technology capabilities into practical solutions. You'll play a key role in balancing enterprise governance and security requirements with the need for business teams to innovate quickly. What You'll Do Provide senior-level administration and technical support across Microsoft 365, with an emphasis on Power Platform, AI capabilities, and application integrations. Manage identity and application integrations within Microsoft Entra ID, including application registrations, enterprise applications, permissions, consent, and service identities. Oversee the lifecycle of enterprise application integrations to ensure they remain secure, supportable, and aligned with organizational standards. Evaluate and onboard internal and third-party applications that integrate with the Microsoft environment. Work with application owners, developers, security teams, and business stakeholders to implement appropriate authentication and authorization solutions. Administer Microsoft Power Platform, including environments, capacity, usage, solutions, and lifecycle management across development, testing, and production. Establish and enforce governance practices that provide appropriate controls around low-code development while still allowing business teams to build approved solutions. Assist with moving Power Platform solutions through development, testing, and production while providing ongoing operational support. Help drive adoption and effective use of Microsoft Copilot and related AI capabilities across the organization. Partner with business and technical teams to identify opportunities for AI-assisted workflows, automation, and intelligent applications. Help design practical AI and automation solutions that meet security, compliance, and operational requirements. Promote responsible and sustainable approaches to enterprise AI adoption. Act as an escalation resource for complex Microsoft 365 issues involving automation, integrations, identity, and AI-enabled solutions. Develop and maintain technical documentation, configuration standards, procedures, and operational runbooks. Provide technical guidance and mentoring to other administrators and business technology users. Collaborate with infrastructure, cybersecurity, identity, and compliance teams on enterprise technology initiatives. Identify opportunities to improve platform reliability, automate administrative processes, and increase the organization's overall Microsoft 365 maturity. Maintain accurate records of system configurations, changes, incidents, and other work within established IT service management processes. Perform additional responsibilities as needed. What We're Looking For Education & Experience Bachelor's degree in Computer Science, Information Technology, or a related discipline, or an equivalent combination of education and professional experience. 5-8 years of experience supporting or administering Microsoft 365, cloud platforms, or enterprise collaboration technologies. Professional experience administering Microsoft Power Platform in a production environment. Microsoft Power Platform certification is a plus, but not required. Technical Skills Strong experience with several of the following: Microsoft Power Platform administration and governance Microsoft Entra ID and enterprise application integrations Application registrations, service identities, permissions, and authentication Microsoft 365 administration and associated service integrations Power Platform environments, solutions, capacity, and lifecycle management Microsoft Copilot and enterprise AI enablement Low-code/no-code governance Enterprise application integration and access management IT service management, documentation, and change management Nexus IT Group