SW Integration and Test Engineer – Principal SW Engineer

Raytheon; Woburn (MA); On-site; USD 130,000 - 180,000; Full time

Job summary

RTX is seeking a Software Integration and Test (SWIT) Engineer - Principal Software Engineer to join the Missile Defense Sensors Software Department in Woburn, MA. This onsite role requires coordinating radar software builds, troubleshooting in Linux, and developing robust test plans with cross-functional teams.

Applicants should have a STEM degree and 5+ years of relevant experience, with proficiency in C++, Python, Matlab, and Java. U.S.

Qualifications

• Bachelor’s degree in STEM is required with 5+ years of related experience.
• Experience in software integration, testing, and troubleshooting in Linux environments.
• Proficiency in C++, Python, Matlab, Java or similar languages and debugging skills.

Responsibilities

• Install, integrate, and configure new radar builds and software patches.
• Merge and build multiple software components for radar execution.
• Troubleshoot complex software and system issues in Linux with cross-functional teams.
• Architect and execute detailed test plans to validate builds against requirements.
• Prepare technical documentation and lead testing activities in Agile Scrum.

Skills

C++

Python

Matlab

Java

Linux

Education

Bachelor’s in STEM

Tools

Jira

SIL

Hardware-in-the-loop

Job description

Location

US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER BLDG

Date Posted

2026-11-02

Country

United States of America

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 freedom and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. We are seeking a Software Integration and Test (SWIT) Engineer - Principal Software Engineer to join the Missile Defense Sensors (MDS) Software Department. The MDS Software mission is to provide world-class radar and Command and Control (C2) Software for our customers' wide array of surveillance and warning systems. SWIT Leads are responsible for coordination and integration of our software into a system, troubleshooting issues, designing new test cases, analyzing performance and designing new test cases. This is an onsite role in Woburn, MA or Tewksbury, MA depending on the assigned program.

What You Will Do

• Own, coordinate, and conduct the installation, integration, and configuration of new radar builds, software updates, and patches onto lab systems.
• Own, coordinate, and conduct the merging and building of multiple software components for execution on the radar.
• Drive the troubleshooting and resolution of highly complex software and system issues in a Linux environment, working collaboratively with multi-disciplinary teams.
• Architect, develop, and execute detailed test plans and procedures to validate new software builds, ensuring they meet system requirements and operational performance standards.
• Author analysis scripts to analyze system performance and implement improvements to the software baseline.
• Mentor junior engineers and provide technical oversight on integration and testing activities.
• Collaborate with cross-functional engineering teams, including systems, hardware, and cybersecurity specialists, to support the development and deployment of robust radar system solutions.
• Identify, coordinate, and implement updates to support the continuous improvement of integration and testing processes, tools, and methodologies.
• Prepare and present technical documentation, including test reports, analysis findings, and recommendations, to internal and external stakeholders.
• Provide leadership in an Agile Scrum environment, supporting planning, estimation and technical execution.

Qualifications You Must Have

• Typically requires a Bachelor’s in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience unless prohibited by local laws/regulations.
• Experience in software integration, testing, troubleshooting or administration in a Linux-based environment.
• Experience with software development and debugging skills using languages such as C++, Matlab Python, Java or similar.
• The 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

• Experience with advanced knowledge of radar systems, real-time software, or missile defense applications.
• Experience working in field-deployed operational support roles, including direct interaction with customers and end-users.
• Experience with Agile development methodologies and tools such as Jira.
• Experience with system integration labs (SIL) or hardware-in-the-loop