Senior Microsoft Infrastructure Administrator Job Northern Kentucky USA,IT/Tech

Location: Northern

Provide expert-level administration, configuration, and engineering support for the client's Microsoft 365 environment
Lead planning and execution of Microsoft 365 service updates, feature rollouts, and configuration changes under ITIL 4 change management practices
Monitor Microsoft 365 service health, performance, and security posture and proactively address issues
Develop and maintain Microsoft 365 configuration standards, policies, and governance documentation
Support Microsoft 365 license management and optimization
Administer and engineer the client's Microsoft Azure Government environment
Lead Microsoft Entra identity service integrations and administration, including IAL2 identity assurance, multi-factor authentication, and single sign-on
Support Zero Trust Architecture through Entra identity, conditional access, and least-privilege access controls
Manage Azure Government subscriptions, resource groups, RBAC, and policy enforcement
Coordinate with Infrastructure and Platform Operations on Azure-hosted workloads and cloud infrastructure
Support FedRAMP compliance for Azure Government services
Lead Microsoft Endpoint Manager (Intune) administration and engineering for device management, compliance, and application deployment
Manage Microsoft Defender for Endpoint configuration, policies, and incident response coordination
Develop and maintain endpoint baselines, compliance policies, and security standards aligned with NIST SP 800-53
Support Windows endpoint patch management and software deployment
Coordinate with NOC and Service Desk teams on endpoint incidents and escalations
Administer and engineer Exchange Online, including mail flow, transport rules, anti-spam/anti-phishing policies, and mailbox management
Support Microsoft Teams administration, governance, meeting configurations, and A/V integrations
Manage DMARC, DKIM, SPF, and Microsoft Defender for Office 365 configurations
Coordinate on Microsoft Teams Rooms integration and support
Troubleshoot complex Exchange Online and Teams incidents as senior escalation point
Ensure Microsoft infrastructure complies with FISMA, NIST SP 800-53, FedRAMP, and client cybersecurity policies
Administer Microsoft Purview compliance solutions, including data loss prevention and information protection
Support Zero Trust Architecture principles under NIST SP 800-207 and OMB M-22-09
Apply least-privilege and separation-of-duties principles
Support security assessments, audit evidence collection, and remediation
Report suspected or confirmed Microsoft infrastructure security incidents
Serve as senior escalation point for complex Microsoft infrastructure incidents and problems
Independently diagnose and resolve cross-domain infrastructure issues
Manage the Microsoft infrastructure incident lifecycle in the Government ITSM platform
Coordinate with NOC, Service Desk, network, and infrastructure teams
Develop and maintain troubleshooting runbooks, escalation procedures, and knowledge base articles
Provide technical guidance and mentoring to junior administrators
Assign and prioritize Microsoft infrastructure work items aligned with Sprint commitments and operational priorities
Ensure team cross-training across Microsoft infrastructure functions
Conduct quality reviews of team members' work
Support recruitment, onboarding, and professional development of Microsoft infrastructure personnel

Requirements

Minimum 6–8 years of hands‑on enterprise Microsoft infrastructure administration and engineering experience
Demonstrated experience administering and engineering Microsoft 365, Azure Government, and Microsoft Entra in a Federal or comparable enterprise environment
Proven experience with Microsoft endpoint management using Microsoft Intune and Microsoft Defender for Endpoint
Experience implementing and maintaining Zero Trust Architecture principles across Microsoft platforms
Demonstrated experience in a Federal or private‑sector enterprise environment of comparable scale, complexity, and security posture
Proven ability to independently resolve complex, cross‑domain Microsoft infrastructure problems at the enterprise level
Experience with FedRAMP compliance for Azure Government services
Expert‑level…