Principal Linux Systems Administrator with Security Clearance

RTX Corporation is an Aerospace and Defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Its 185,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, VA. To realize our full potential, RTX is committed to creating a company where all employees are respected, valued and supported in the pursuit of their goals. We know companies that embrace diversity in all its forms not only deliver stronger business results, but also become a force for good, fueling stronger business performance and greater opportunity for employees, partners, investors and communities to succeed. The following position is to join our RTX Corporate, Enterprise Services, Research Center or BBN team: Job Summary: Our DT organization ensures that RTX teammates across the globe are able to communicate, collaborate and innovate for customer success. We create leading-edge technology solutions to prevent security threats, protect the integrity of our systems and support the RTX DT infrastructures around the world. As an RTX Enterprise Common Classified (ECC) System Administrator you will collaborate and partner with a diverse cross-section of DT, Engineering, and Program Management teammates supporting RMD's programs across the Enterprise Wide Area Network (eWAN) to support fast-paced, critical programs with classified information system capabilities. This role will involve supporting end-user facing systems (especially Linux systems), account maintenance, and security hardening of program resources. This position is located in Tewksbury, MA, Tucson, AZ, or El Segundo, CA, with potential for domestic travel. We value diverse skills and experience, so don't hold back. Your qualification could add tremendous value to our team. Our customers come from all different backgrounds, and so do our employees. If you're passionate about what you could accomplish here, we'd love to hear from you. Please note that this position needs an active U.S. DOD Secret Security Clearance as of day one of employment. Except in rare cases, only US Citizens are eligible for US Security Clearances. Responsibilities: Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. Strong experience with hybrid (virtual and on-premises) infrastructure and enterprise applications using Windows and Linux platforms (Windows Server, Active Directory, SAML, Virtualization, RHEL, Debian, etc.) Strong skills and significant experience in enabling developer experience through CI/CD pipelines and automation including automating security and QA automation in CI/CD. Experience implementing metrics, KPI and usage dashboards for continuous feedback in CI/CD. Hands on cloud architecture experience with Cloud technology. 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 and provide documentation and training on advanced IT processes and procedures and other tasks as assigned. Must be able to obtain Department of Defense Directive (DoDD) 8140 / 8570 Certification requirements (CompTIA Security+ CE or equivalent certification) within 6 months of start date. Basic Qualifications: Typically requires bachelor's degree and minimum of 5 years of prior relevant experience or a master's degree and minimum of 3 years of prior relevant experience or in lieu of a bachelor's degree minimum 9 years of prior relevant experience or associate degree and minimum 7 years of relevant experience is required. Must have an active and transferable Secret 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." Must have Linux experience and solid working knowledge of Linux operating systems, especially Red Hat Enterprise Linux 7, 8, or 9 Good understanding of security complaince technologies, e.g. MECM, SCCM, WSUS Excellent troubleshooting skills, with a focus on testing OS and application patching to include Visual Studio, PuTTY, and Amazon Corretto Preferred Qualifications: RedHat certifications Experience generating documentation/tooling aids Ability to learn new skills and knowledge in a constantly changing environment Working experience in Windows Desktop & Server The ability to use automation tools or scripts through PowerShell or Ansible to rollout new software or patch updates Location: Tewksbury MA, Tucson AZ, or El Segundo CA - relocation assistance available. What We Offer: Whether you're just starting out on your career journey or are an experienced professional, we offer a robust total rewards package that goes above and beyond with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the superior benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care. Additional Details: Clearance Information: This position requires an active security clearance. Non-US citizens may not be eligible to obtain a security clearance. The Defense Industrial Security Clearance Office (DISCO), an agency of the Department of Defense, handles and adjudicates the security clearance process. More information about Security Clearances can be found on the US Department of State government website here: