SW Integration and Test Engineer – Principal SW Engineer

Prattwhitney; Woburn (MA); On-site; USD 118,000 - 225,000; Full time

Benefits offered by this job

Relocation eligibility

Medical benefits

401(k) match

Job summary

RTX is seeking a Software Integration and Test (SWIT) Engineer – Principal Software Engineer to join the Missile Defense Sensors software team in Woburn, MA. The role focuses on coordinating installation, integration, and testing of radar builds, with emphasis on Linux environments and real-time software integration.

Ideal candidates have 5+ years in software integration/test, strong C++/Python/Matlab/Java skills, and the ability to obtain an interim secret clearance. U.S.

Qualifications

• Bachelor’s in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience.
• 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.

Responsibilities

• 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.

Skills

Linux-based environment experience

C++/Python/Java debugging

Agile/Scrum practices

Mentoring junior engineers

Education

Bachelor's in STEM

Tools

Jira

Git

CI/CD

Job description

Date Posted: 2026-11-02 Country: United States of America Location: US-MA-WOBURN-WB1 ~ 235 Presidential Way ~ SPENCER 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 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 (HWIL) testing environments.
• Experience with cybersecurity and information assurance requirements in a Linux setting.
• Experience with leadership abilities, including mentoring junior engineers and leading cross‑functional teams.
• Experience leading software integration and testing efforts for real‑time or mission‑critical systems.
• Experience with software configuration management tools such as Git and continuous integration/continuous deployment (CI/CD) pipelines.

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.

Relocation Eligibility.

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. Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility. This position requires a security clearance.

DCSA Consolidated Adjudication Services (DCSA , 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 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.

The salary range for this role is 118,300 USD - 224,900 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.

Benefits

• 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 dependent upon the specific business unit as well as whether or not the position is covered by a collective‑bargaining agreement.
• Hired applicants may be eligible for annual short‑term and/or long‑term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective‑bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.
• This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.
• RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

Equal Opportunity

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

Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry‑leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.