Software Engineer I (Onsite)

RTX (Raytheon); Sudbury (MA); On-site; USD 57,000 - 109,000; Full time

Benefits offered by this job

Medical, dental, vision

401(k) match

Paid time off

Holidays

Job summary

RTX is seeking a software engineer for an onsite role in the United States, requiring DoD security clearance. You will participate in cross-functional teams, manage full lifecycle development from architecture to field support, and work within mature SEI processes. A bachelor’s in STEM and C++ development experience are required.

U.S. citizenship is needed for clearance eligibility. Role emphasizes state-of-the-art aerospace/defense software practices, with relocation eligibility and

Qualifications

• Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related STEM by start date.
• Software development experience (internship, co-op, or project).
• Experience with Software Development Using C++.

Responsibilities

• Participate on cross-disciplined product teams, often using agile software development techniques.
• Own full lifecycle of product development from architecture and design to integration, test and field support.
• Operate within a high-m maturity software engineering process as recognized by SEI.

Skills

C++ development

Agile methods

Cross-functional work

Education

Bachelor's degree in STEM

Tools

UML

SysML

Jenkins

Linux

VxWorks/RTOS

Job description

Date Posted: 2026-10-13

Country: United States of America

Location: US-MA-MARLBOROUGH-MA4 ~ 1001 Boston Post Rd ~ BLDG 4

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. 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: Active and existing security clearance required after day 1

Job Description

Are you ready to explore the world of aerospace and defense? Do you want to learn from and collaborate with some of the greatest minds in the industry? At RTX, our internships, co-ops and full-time careers provide an exceptional foundation to work on complex problems, advance your skills and create a safer, more connected world. Discover opportunities to make a difference at RTX.

What You Will Do

• Participate on collaborative, cross-disciplined integrated product teams, often employing agile software development techniques
• Responsible for the full lifecycle of product development, from architecture and design, through integration, test, and field support
• Work and learn the highest software engineering process maturity level as recognized by the Software Engineering Institute
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

What You Will Learn

• Opportunity to work and learn in an engineering organization with the highest software engineering process maturity level as recognized by the Software Engineering Institute.
• Exposure to various development environments and tools.
• Collaboration with a dynamic group of engineers from a variety of disciplines.

Qualifications You Must Have

• Bachelor's degree in Software Engineering, Computer Engineering, Computer Science, or related Science, Technology, Engineering or Mathematics (STEM) major obtained by start date.
• Software development experience (i.e. internship, co-op, or other work or academic project experience)
• Experience with Software Development Using C++

Qualifications We Prefer

• Applied experience in Unified Modeling Language (UML) and Object-Oriented Analysis and Design (OOA/D)
• Understanding of standard system engineering design artifacts such as Use Cases and SysML diagrams.
• Experience with Agile lifecycle process including Scrum, Continuous Integration, and Test-Driven Development Methodologies
• Experience with DevOps, Jenkins and automated testing
• Exposure to Model Driven Development
• Working knowledge of Linux, VxWorks or other Real time operating systems

What We Offer:

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

Relocation Eligible

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

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.

The salary range for this role is 57,200 USD - 108,800 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 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 re