Principal System Administrator

Location: US-CA-SAN JOSE-826 ~ 200 Holger Way ~ BLDG 826

 Position Role Type: Onsite

 U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date.​ U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance​

 Security Clearance Type: TS/SCI - Current

 Security Clearance Status: Active and existing security clearance required on day 1 Raytheon Company managed by Collins Aerospace At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. At Applied Signal Technology (AST), the foundation of everything we do is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. Our team solves tough, meaningful problems that create a safer, more secure world. AST is seeking a Principal Systems Administrator to join our team.  This is an ONSITE role at our San Jose, CA location.  To find out more about AST, please click the following link - Applied Signal Technology:

What You Will Do Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. Understanding and knowledge of Windows Server internals or Linux fundamentals to include DNS, DHCP, AD, and server replication methods.  Working as a team member in a fast-paced technological environment.  Use troubleshooting techniques to resolve technical problems of a moderate to high scope and complexity to include the integration of hardware and operating systems (OS). Work with Cybersecurity professionals to maintain security requirements.  Provide documentation and training on advanced IT processes and procedures and other tasks as assigned. Must be able to obtain certification requirements (CompTIA Security+ CE or equivalent certification) within a reasonable amount of time Systems are operational 24x7 and occasionally require work effort beyond standard work hours. Travel required as business needs dictate to other US Domestic locations, up to 10% per year.

You Must Have Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience Experience with Windows and Linux Operating systems. Experience with scripting. Experience with helpdesk operations, ticket troubleshooting and resolution. Experience with audit logs collection. Experience with system hardening. Experience with working in a team environment and collaborating with others. Experience working face to face with others and being comfortable in a demanding environment. Active and transferable U.S. government issued Top Secret SCI (TS/SCI) security clearance is required prior to start date with the ability to obtain a polygraph after start. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

We Prefer Experience serving as a technical SME or primary point of contact for patching, vulnerability remediation, or compliance initiatives. Experience with VMware virtualization technologies, including ESXi, vCenter, VM