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Sr. System Administrator

Raytheon
FULL_TIME Remote · US Pascagoula, MS, Jackson, US Posted: 2026-05-11 Until: 2026-07-10
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Job Description
Date Posted: 2026-03-27 Country: United States of America Location: US-MS-PASCAGOULA-1000-CUST ~ 1000 Access Rd ~ ACCESS (External Site) 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 with Poly - Current Security Clearance Status: Active and existing security clearance required on day 1 At Raytheon, 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. We bring the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. Our team solves tough, meaningful problems that create a safer, more secure world. Empowering a global business. Providing affordable solutions. Delivering competitive discriminators by unleashing deep expertise. These are just some of the many ways the Digital Technology team at Raytheon creates success for our customers. Joining our team will allow you to collaborate with Raytheon organizations to enable business growth, speed, and agility through business innovation, technical proficiency, and operational excellence. Our Digital Technology (DT) organization ensures that Raytheon teammates across the globe can communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, secure the integrity of our systems and support IT infrastructures around the world. Senior System Administrator , internally known as Senior Analyst, based in Stennis, MS position is on Stennis Space Center . Information Workplace Services collaborate with many teams to support exciting, critical programs with classified information system capabilities. Success in this role means you can develop, implement, and maintain secure, cost-efficient environments across various classified programs. Program teams rely on your collaboration and guidance to define computing requirements and create end-to-end solutions to solve complex IT infrastructure problems. What You Will Do: You will be supporting a Raytheon program in a classified environment as a System Administrator: You will be responsibilities include the monitoring and support of systems that are operational 24x7 and which occasionally require work effort beyond standard work hours. This position is 8x5 with after-hours call-in responsibility. You will collaborate with many teams to support exciting, critical programs with classified information system capabilities. Success in this role means you will be responsible for monitoring and maintaining system health and security posture, directly supporting customer mission-critical capabilities. Will work closely with program developers and system engineers to research issues, determine root causes, and implement solutions to system problems. Additionally, the position serves as a help desk team member in a customer-facing environment, so the ability to communicate effectively and respectfully with other teams and with the customer is of utmost importance, as you will be expected to uphold our excellent reputation. The ability to work effectively with frequent and direct customer interaction in a real-time operational environment The ability to work under pressure in restoring high priority systems back to operations This position is 100% onsite in Stennis, MS. Qualifications You Must Have : Requires a bachelor’s degree and a minimum of 2 years or prior relevant experience Must have an active and transferable U.S. government issued TS/SCI with poly security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance By start date must have an active DoD 8570 IAT Level 2 certification (or higher) on start date. IAT Level 2 requires one or more of the following Professional Certifications: Security+ CE, CCNA Security, GICSP, GSEC, SSCP, CySA+, CND Experience with VMWare or Linux Systems Administration Experience with Veritas tape libraries and/or Hitachi VSPs Experience configuring domain information utilities, such as Active Directory, Centrify, LDAP, and DNS Qualifications We Prefer: Ability to navigate, debug, and modify programs in an advanced programming language Experienc