We are currently seeking an experienced Senior Systems Administrator/Windows to join our team to begin an exciting and challenging career with Unisys Federal Systems. This is a 24 / 7 environment. Shift Hours: 11:00PM - 7:00AM Must have DoD issued Interim Top Secret Clearance !Key Responsibilities:Support the installation, configuration, and operation of the Windows server environment and provide in-depth technical expertise.Troubleshoot and resolve unique or complex problems in an efficient manner.Prepare documentation that explains the technical solution clearly.Interface directly with the client and parallel teams when necessary.Apply DISA STIGs and resolve security vulnerabilities.Support operational transition of enterprise solutions into production. Requirements Proficient understanding of technology areas such as Active Directory, DHCP, DNS, Group Policy and DFS.Fundamental understanding of authentication mechanisms such as Kerberos, LDAP and NTLM and use of necessary tools to troubleshoot them.Experience implementing Public Key Infrastructure (PKI) with Active Directory.Strong knowledge of PowerShell and .NET scripting.Expert knowledge of networking concepts and technologies.Analytical approach to solve complex problems in a complex, large-scale, and multi datacenter environmentsEducation / Certification / Security Clearance Requirements:Bachelor's Degree in Computer Science, Information Systems, or other related field or equivalent work experience and 5 years overall experience.8570 IAT Level II Certification or HigherMust have DoD issued Interim Top Secret Clearance or higher About Unisys Do you have what it takes to be mission critical? Your skills and experience could be mission critical for our Unisys team supporting the Federal Government in their mission to protect and defend our nation, and transform the way government agencies manage information and improve responsiveness to their customers. As a member of our diverse team, you'll gain valuable career-enhancing experience as we support the design, development, testing, implementation, training, and maintenance of our federal government's critical systems. Apply today to become mission critical and help our nation meet the growing need for IT security, improved infrastructure, big data, and advanced analytics.Unisys is a global information technology company that solves complex IT challenges at the intersection of modern and mission critical. We work with many of the world's largest companies and government organizations to secure and keep their mission-critical operations running at peak performance; streamline and transform their data centers; enhance support to their end users and constituents; and modernize their enterprise applications. We do this while protecting and building on their legacy IT investments. Our offerings include outsourcing and managed services, systems integration and consulting services, high-end server technology, cybersecurity and cloud management software, and maintenance and support services. Unisys has more than 23,000 employees serving clients around the world. Unisys offers a very competitive benefits package including health insurance coverage from first day of employment, a 401k with an immediately vested company match, vacation and educational benefits. To learn more about Unisys visit us at www.Unisys.com.Unisys is an Equal Opportunity Employer (EOE) - Minorities, Females, Disabled Persons, and Veterans.#FED#