Software Engineer/Developer I (Onsite)

About the role

• Date Posted: 2026-10-21
• Country: United States of America
• Location: US-MA-MARLBOROUGH-MA2 ~ 1001 Boston Post Rd ~ BLDG 2
• 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

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

The mission of the software team in Marlborough, MA is to provide world-class software for our customers. We are looking to add software engineers to our development team for a wide array of products including Battle Management, Command & Control, Communications, Effectors, Advanced Sensor Systems, and Surveillance and Warning systems.

• We value your diverse skills and experience, so don't hold back.
• Your qualifications add tremendous value to our team.
• Our customers come from all different backgrounds, and so do our employees.
• If you're passionate about what you could accomplish here, we'd love to hear from you.

• Participate in collaborative, cross-discipline integrated product teams, employ agile software development techniques and resources to develop, test, and integrate complex software and systems solutions for aerospace and defense applications
• Responsible for some or all of a Software product, contributing as a software team member and possibly leading a small software team.

Qualifications You Must Have

• Bachlor's degree in Science, Technology, Engineering, or Mathematics (STEM) or similar technical degree
• Experience designing and programming with C++, Java or other object-oriented language
• Knowledge of data structures, algorithms, memory management, and multithreaded applications
• Experience utilizing Generative AI tools or machine learning-assisted technologies to accelerate technical workflows, automate repetitive tasks, improve code quality, or optimize team delivery
• Experience with open systems architecture (OSA) and modular design principles, including designing or developing loosely coupled software components, standardized APIs, or modular system interfaces
• Experience identifying and resolving operational, technical, or documentation deficiencies within an engineering environment (Technical Problem Solving)

Qualifications We Prefer

• Experience with CI/CD (Continuous Integration/Continuous Delivery) tools (e.g., Git, Atlassian Suite, Azure, Jenkins)
• Experience with configuration management tools (e.g., Azure, Jira, Git, Bitbucket, Artifactory)
• Experience with data analysis tools (e.g., MATLAB, Python)
• Experience using Agile frameworks such as Scrum, Scaled Agile (SAFe), or Scrum@Scale, Test-Driven Development (TDD) or DevOps principles
• Experience developing, building, or debugging software across diverse operating system environments, such as enterprise Linux distributions (e.g., Red Hat Enterprise Linux/RHEL), commercial Real-Time Operating Systems (e.g., VxWorks, Green Hills INTEGRITY), or Windows development environments
• Demonstrated track record of technical adaptability, including quickly learning, evaluating, and applying new programming languages, frameworks, or engineering tools to meet evolving project requirements
• Experience managing competing priorities and meeting firm project milestones within dynamic, deadline-driven development or operational environment

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 Eligibility

• 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.

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 require RTX to shorten or extend the application window.