Principal Software Operating System Security Engineer

RTX (Raytheon); Woburn (MA); On-site; USD 108,000 - 205,000; Full time

Benefits offered by this job

Medical benefits

Dental benefits

Vision benefits

401(k) match

Flexible work schedules

Paid time off

Job summary

RTX seeks a seasoned systems engineer to design, deploy, and harden Linux environments on-site at our MA location. You will implement security baselines, automate configuration with Ansible and related tools, and support complex systems across Linux and Windows infrastructures.

The role requires a bachelor's degree and at least 8 years of hands-on experience, plus eligibility for an Interim Secret security clearance.

Qualifications

• Bachelor's degree in Computer Science, Computer Engineering, Electrical Engineering, Software Engineering, or related field and minimum 8 years of experience
• Hands-on experience with RHEL administration
• Background in OS hardening, security baselines, and compliance frameworks (STIGs, CIS Benchmarks)

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

Bash scripting

Python scripting

OS hardening

Security baselines

Education

Bachelor's degree in Computer Science/Engineering or related field

Tools

RHEL administration

Ansible

Puppet

Chef

SaltStack

Job description

Job Details

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.

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.

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.).

Salary and Benefits

The salary range for this role is 107,500 USD - 204,500 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 be