We are seeking a Senior Systems Administrator to support and maintain an environment centered on Active Directory, Microsoft Azure, and Microsoft 365. In this role, you will help ensure the availability, stability, and security of core systems, partner with cross-functional teams to resolve incidents and improve services and participate in an on-call rotation for incident management. You will administer and optimize Active Directory, Azure-hosted servers, and Microsoft 365 services. You will monitor system health, automate repeatable tasks, and troubleshoot issues through to resolution while communicating clearly with stakeholders. You will also contribute to continuous infrastructure improvement by applying strong system engineering practices across Windows and Linux systems and by using tools such as Terraform in a Microsoft Azure environment. To be successful, you should bring hands-on experience administering Active Directory, Azure, and Microsoft 365, along with strong troubleshooting skills and a track record of improving reliability through monitoring and automation. Experience supporting both Windows and Linux systems and using infrastructure-as-code (such as Terraform) is highly valued. If you are interested, please submit your resume and a brief note highlighting relevant experience and your availability for on-call rotation. Essential Functions: Manage and maintain Active Directory infrastructure, including domain controllers, group policies, and user account management. Deploy, configure, and maintain servers hosted in Microsoft Azure, ensuring optimal performance, scalability, and security. Contribute to the stability and reliability of our systems by leveraging expertise in monitoring, automation, and administration of Windows and Linux systems using Terraform in a Microsoft Azure environment. Administer and support Azure Virtual Desktop (for developers and business personnel) Microsoft Office 365 services, including SharePoint, Teams, Exchange/Outlook, OneDrive, Forms, and Power Automate. Monitor system performance, proactively analyze logs, and implement necessary optimizations to ensure high availability and reliability. Participate in an on-call rotation for incident management, responding to and resolving system-related incidents and service requests within defined SLAs. Collaborate with cross-functional teams to plan, implement, and upgrade system infrastructure components. Implement and maintain security measures, data protection, and disaster recovery solutions for the environment. Provide technical expertise, mentoring and guidance to internal teams and end-users on system related matters. Stay updated with the latest technologies, trends, and best practices in system engineering, Microsoft Azure, and Microsoft Office 365. Consistently exhibits behavior and communication skills that demonstrate Tandigm Health’s commitment to superior customer service, including quality, care and concern with every internal and external customer. Uses, protects, and discloses Tandigm’s patients’ protected health information (PHI) only in accordance with Health Insurance Portability and Accountability Act (HIPAA) standards and protects Tandigm assets from unauthorized access, disclosure, modification, destruction or interference. Adheres to and is responsible for abiding by all information security policies, processes, and/or activities. Reports security events or potential events or other security risks to the organization, to management. Design, implement, and maintain enterprise monitoring and observability solutions across cloud environments. Performs additional duties as assigned.