Raytheon
Principal Linux Systems Administrator – Raytheon
Location: 16510 E Hughes Drive, Aurora, CO 80011, USA. Position Type: Onsite.
Security Clearance : TS/SCI with CI Poly. Posting Date: 2025-12-08.
About Raytheon:
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. Raytheon Digital Technology is an organization that delivers for all those who defend us by distributing capabilities, solutions, and processes to ensure alignment around program priorities supporting program execution. We support critical programs with unclassified, classified, and proprietary information system capabilities and create end‑to‑end solutions to solve complex digital infrastructure problems.
What You Will Do
You will be supporting a Raytheon program in a classified environment as a Principal Linux System Administrator in Aurora, CO. Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission‑critical capabilities.
You will work closely with program developers and system engineers to research issues, determine root causes and implement solutions to system problems.
You must be able to support occasional after‑hour maintenance and on‑call support.
You must be able to lift to 35 pounds in support of hardware installations.
Occasional travel may be required for installation support.
This position is a 100% onsite role.
Qualifications You Must Have
Typically requires bachelor’s degree and minimum of 5 years of relevant prior experience or a master’s degree and 3 years of experience.
Must have an active and transferable U.S. government issued TS/SCI with polygraph security clearance prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
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 administering Red Hat Enterprise Linux.
Experience with patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening.
Experience installing, administering, and troubleshooting recent versions of VMware (ESXi and vCenter).
Qualifications We Prefer
Deployment and administration of systems in Amazon Web Services (AWS)/Commercial Cloud Services (C2S).
Using and developing with automation tools/frameworks such as Terraform, Ansible, and Chef as well as scripting—particularly in Bash and Python.
Experience administering Windows‑based systems.
Demonstrated ability to work independently and troubleshoot problems with efficiency.
Requires the ability to effectively interact with external personnel on significant technical matters often requiring coordination between organizations and vendors.
Ability to effectively interact with external personnel on significant technical matters often requiring coordination between organizations and other areas of RTX.
Salary Range The salary range for this role is 82,000 USD – 164,000 USD. The salary range provided is a good faith estimate representative of all experience levels.
What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. Relocation assistance is available.
Benefits Benefits may include medical, dental, vision, life insurance, short‑term disability, long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective‑bargaining agreement.
Additional Information This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
Equal Opportunity Employer RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
#J-18808-Ljbffr
Security Clearance : TS/SCI with CI Poly. Posting Date: 2025-12-08.
About Raytheon:
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. Raytheon Digital Technology is an organization that delivers for all those who defend us by distributing capabilities, solutions, and processes to ensure alignment around program priorities supporting program execution. We support critical programs with unclassified, classified, and proprietary information system capabilities and create end‑to‑end solutions to solve complex digital infrastructure problems.
What You Will Do
You will be supporting a Raytheon program in a classified environment as a Principal Linux System Administrator in Aurora, CO. Responsibilities include building, maintaining, and securing Information Technology systems and directly supporting customer mission‑critical capabilities.
You will work closely with program developers and system engineers to research issues, determine root causes and implement solutions to system problems.
You must be able to support occasional after‑hour maintenance and on‑call support.
You must be able to lift to 35 pounds in support of hardware installations.
Occasional travel may be required for installation support.
This position is a 100% onsite role.
Qualifications You Must Have
Typically requires bachelor’s degree and minimum of 5 years of relevant prior experience or a master’s degree and 3 years of experience.
Must have an active and transferable U.S. government issued TS/SCI with polygraph security clearance prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
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 administering Red Hat Enterprise Linux.
Experience with patching, creating/maintaining RPM packages, performance tuning, networking, user management (LDAP), and security hardening.
Experience installing, administering, and troubleshooting recent versions of VMware (ESXi and vCenter).
Qualifications We Prefer
Deployment and administration of systems in Amazon Web Services (AWS)/Commercial Cloud Services (C2S).
Using and developing with automation tools/frameworks such as Terraform, Ansible, and Chef as well as scripting—particularly in Bash and Python.
Experience administering Windows‑based systems.
Demonstrated ability to work independently and troubleshoot problems with efficiency.
Requires the ability to effectively interact with external personnel on significant technical matters often requiring coordination between organizations and vendors.
Ability to effectively interact with external personnel on significant technical matters often requiring coordination between organizations and other areas of RTX.
Salary Range The salary range for this role is 82,000 USD – 164,000 USD. The salary range provided is a good faith estimate representative of all experience levels.
What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. Relocation assistance is available.
Benefits Benefits may include medical, dental, vision, life insurance, short‑term disability, long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective‑bargaining agreement.
Additional Information This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply. RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.
Equal Opportunity Employer RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.
#J-18808-Ljbffr