Kforce is seeking a Systems Administrator (Infrastructure Apps) for a contract opportunity with a leading organization in the infrastructure sector in Tucson, AZ. Summary: The Systems Administrator will be responsible for the architecture, design, planning, testing, implementation, and administration of IT infrastructure and security applications. This role involves collaborating with various business units to deliver reliable and cost-effective IT solutions, ensuring optimal system performance and security. Key Responsibilities: * Troubleshoot server and client environments * Maintain and optimize Active Directory, including replication, LDAP authentication, DNS, and WINS * Develop and maintain PowerShell scripts * Monitor and support Windows Server OS (2019 and newer) * Manage server-based application architecture and dependencies * Support Microsoft Exchange and Exchange Online * Understand network protocols, switching, and routing * Utilize enterprise ticketing systems * Create documentation and communicate effectively across teams