GDIT is seeking a Senior Windows Admin to join our team, TS/SCI with poly required.ROLES & RESPONSIBILITES:Provides support for implementation, troubleshooting and maintenance of Information Technology (IT) systems.Manages IT system infrastructure and any processes related to these systems. Provides support to IT systems including day-to-day operations, monitoring and problem resolution for the client window server devices.Provides Tier 1 through Tier 3 problem identification, diagnosis, and resolution of problems.Candidate must be able to coordinate and partner with various work centers, network engineers/administrators, and customer organizations in the execution of daily tasks.Strong communication skills, as well as excellent teaming skills and a positive, customer-focused attitude.REQUIRED SKILLS:Must have Sys Admin experience with Linux and Windows Server Platform.Ability to maintain, deploy and operate the servers.Experience with Microsoft SCCM, EPO or EXCHANGE server design and operations.DESIRED SKILLS:PowershellNovice experience with LinuxKnowledge in setup and use of certs in Windows 7 environmentREQUIRED EDUCATION AND EXPERIENCE:Bachelor's Degree and 5 years' experience OR equivalent combination of education/experienceOne of the following DoD approved certifications is required to meet the category/level IAT-2 (DoD 8570) requirement for this position. Security+, GSEC, SSCP, CCNA-Security, CISA, CISSP (or Associate), CASP, GSIH, or GCED. Training and Certification provided for applicants meeting the above requirementsMust possess an ACTIVE TS/SCI with POLYGRAPH CLEARANCE For more than 50 years, General Dynamics Information Technology has served as a trusted provider of information technology, systems engineering, training, and professional services to customers across federal, state, and local governments, and in the commercial sector. Over 40,000 GDIT professionals deliver enterprise solutions, manage mission-critical IT programs, and provide mission support services worldwide. GDIT is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status, or any other protected class.