Senior Software Operating System Security Engineer

RTX (Raytheon); Woburn (MA); On-site; USD 87,000 - 165,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) match

Job summary

RTX is seeking a Linux Systems Engineer to design, deploy, and maintain RHEL-based environments at the Woburn, MA site, ensuring secure and scalable infrastructure for mission-critical applications.

The role requires a bachelor’s degree and 5 years of experience, with the ability to obtain an Interim Secret clearance. Onsite work with comprehensive benefits is offered to join RTX’s defense technology teams.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field and 5 years of experience.
• Hands-on experience with RHEL administration.
• Background in OS hardening, security baselines, and compliance frameworks (e.g., STIGs, CIS Benchmarks).
• Ability to obtain and maintain an Interim Secret U.S. security clearance; U.S. citizenship is required.

Responsibilities

• 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.

Skills

Linux administration

OS hardening

Security baselines

Scripting Bash/Python

CI/CD pipelines

Education

Bachelor's degree in CS/CE/SE or related field

Tools

Ansible

Puppet/Chef/SaltStack

VMware

Docker/Podman

Job description

Date Posted: 2026-09-14

Country: United States of America

Location: US-MA-WOBURN-WB2 ~ 225 Presidential Way ~ GODDARD BLDG

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: DoD Clearance: Secret

Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

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 5 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.).

The salary range for this role is 86,800 USD - 165,200 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate's work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, 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 depe