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Principal Software Operating System Security Engineer

RTX
Woburn, USA
Full-time
Senior · 8+ years experience
Discovered Yesterday
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Location:

  • Position Role Type:
  • U.S. Citizen, U.S. Person, or Immigration Status Requirements:
  • Security Clearance Type:
  • Security Clearance Status:
  • 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.
  • Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense.

What You Will Do

  • Design, deploy, and maintain RHEL-based systems in production and development environments.
  • Implement OS hardening standards and security controls across Linux systems.
  • Develop and maintain automated configuration workflows using Ansible or other IaC/CM tools.
  • Write and maintain scripts to support system configuration, monitoring, and operational tasks.
  • Apply systems engineering principles to requirements analysis, design documentation, verification, and lifecycle support.
  • Troubleshoot complex issues across Linux/Windows hosts, networks, infrastructure services, and applications.
  • Collaborate with cross-functional engineering teams to ensure system reliability, security, and scalability.
  • Participate in technical reviews, architecture discussions, and design planning.
  • Qualifications You Must Have
  • Typically requires a bachelor’s degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field and minimum 8 years of experience
  • Demonstrated hands-on experience with RHEL administration.
  • Demonstrated background in OS hardening, security baselines, and compliance frameworks (e.g., STIGs, CIS Benchmarks)
  • The ability to obtain and maintain an Interim Secret U.S security clearance is required. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance
  • Qualifications We Prefer
  • Proficiency in scripting languages such as Bash, Python, or similar.
  • Experience with Ansible or equivalent IaC/configuration management tools (e.g., Puppet, Chef, SaltStack).
  • Solid understanding of Linux and Windows networking fundamentals (DNS, DHCP, routing, firewalls, services).
  • Ability to approach problems with systems engineering thinking, including structured analysis and clear documentation.
  • Familiarity with virtualization or containerization technologies (KVM, VMware, Docker, Podman) is a plus.
  • Ability to work both independently and collaboratively in a fast-paced engineering environment.
  • Experience in secure enterprise or government environments.
  • Knowledge of CI/CD pipelines and automated testing.
  • Understanding of reliability, maintainability, or other systems engineering specialty areas.
  • Relevant certifications (RHCSA/RHCE, Security+, Network+, etc.).
  • Learn More & Apply Now
  • Please ensure the role type defined below is appropriate for your needs before applying to this role. This position is classified as:
  • Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.
  • As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.
  • 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.
  • Privacy Policy and Terms:
  • Click on this link to read the Policy and Terms

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