Senior Systems Administrator

Job description

Position Summary: UDRI is seeking a skilled System Analyst & Team Lead to oversee the design, modernization, and operation of UDRI’s on-premises and Microsoft-based enterprise infrastructure. This role is responsible for leading a small technical team while ensuring reliability, security, and compliance across mission-critical systems including Active Directory, Microsoft 365 GCC High, Azure Government, and Hyper-V environments. The ideal candidate has strong leadership ability, deep expertise in Microsoft enterprise systems, and the ability to translate business needs into secure and scalable technical solutions. Key Responsibilities: - Serve as team lead for a group of 3–4 IT staff, including system administrators and helpdesk personnel. - Architect, administer, and modernize Windows Server, Active Directory, Group Policy, and Microsoft 365 GCC High environments. - Manage virtualization platforms including Hyper-V, VM lifecycle, performance, and capacity planning. - Oversee enterprise server operations including patching, upgrades, lifecycle management, and automation. - Develop technical documentation, architecture diagrams, and operational standards. - Collaborate with cybersec...