Principal Software Infrastructure Engineer

Date Posted:

2025-08-26

Country:

United States of America

Location:

MA133: Tewksbury, Ma Bldg 3 Concord 50 Apple Hill Drive Concord - Building 3, Tewksbury, MA, 01876 USA

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:

DoD Clearance: Secret

At Raytheon, our foundation is rooted in our values and a higher calling – to help our nation and allies defend freedoms and deter aggression. With over 100 years of experience and renowned engineering expertise, we meet today’s mission needs and stay ahead of tomorrow’s threats. Our team solves tough, meaningful problems to create a safer, more secure world.

We’re seeking a Principal Software Engineer to lead the design, development, and integration of embedded software and infrastructure for distributed, real-time systems. This is a hands-on, high-impact role supporting critical defense programs.

What You Will Do 

• Provide technical leadership in configuring, managing, and developing infrastructure and COTS components in embedded systems

• Diagnose and resolve complex system-level issues using industry-standard tools and best practices

• Develop, test, and integrate embedded software components (OS, network stacks, bootloaders, etc.)

• Contribute to the technical roadmap and participate in design reviews and strategic planning

• Automate workflows and pipelines using DevSecOps tools and Agile methodologies

• Collaborate across engineering, program management, and cross-functional teams

• Produce clear, concise documentation for software processes, integration, and design

Qualifications You Must Have 

• Typically requires a Bachelor’s in Science, Technology, Engineering, or Mathematics (STEM preferred) and a minimum of 8 years of experience.

• Experience with real-time OSes such as Linux, VxWorks, LynxOS

• Scripting experience in Python or Bash

• Experience with network protocol configuration

• Experience with infrastructure code (e.g., kernel modules, thread auditing)

• Experience with debugging tools, performance profiling, and system integration

• Ability to obtain and maintain an interim secret U.S. security clearance prior to the start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Qualifications We Prefer 

• Active Secret security clearance.

• C/C++ development experience.

• Switch management experience

• Familiarity with Patriot Systems and Raytheon engineering processes

• Experience with COTS integration, license management, and vendor interaction

• Experience with data structures, OS architecture, and embedded system design

• Experience with CI/CD pipelines (e.g., Jenkins, GitLab, Bamboo, Travis)

• Background in Agile/SCRUM development and DevOps practices

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

Learn More & Apply Now!

• Please consider the following role type definition as you apply for this role.

• 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.

• This position requires a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), 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: https://www.state.gov/m/ds/clearances/c10978.htm 

• We Are RTX

The salary range for this role is 101,000 USD - 203,000 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 a