Software Engineering Intern (ISET-IN-2)

Prattwhitney; Oak Grove (VA); On-site; USD 42,000 - 88,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) match

Paid time off & holidays

Job summary

RTX's Sterling, VA based Software Engineer Internship offers hands-on experience in real-time, multi-threaded software for simulation and training systems. You will work with an Agile team to design, develop, test, and debug applications across Windows and Linux environments.

Ideal candidates are pursuing a STEM degree with strong C/C++ skills, familiarity with AI/ML, Unreal Engine, and cloud technologies, and a passion for aerospace and defense.

Qualifications

• Pursuing a Bachelor's or advanced degree in STEM and enrolled through internship session.

Responsibilities

• Design, develop, test, and debug real-time, multi-threaded software for simulation and training.
• Collaborate with software engineers and project management in an Agile team.
• Support, maintain, and enhance existing software products as needed.
• Learn new technologies and apply them to new domains.

Skills

C/C++/C# programming

Object‑Oriented design

Unit testing (GoogleTest/NUnit)

Version control (git, Subversion)

Agile/SCRUM/Kanban

Windows/Linux development

AI/ML/OpenAI development

Unreal Engine with C++

VR/AR development

Cloud technologies (AWS)

PostgreSQL database familiarity

Multithreading IPCs

CI/CD tools (Jenkins/TeamCity/Bamboo)

Education

Bachelor's or advanced degree in Software/Computer Engineering, CS or related STEM

Tools

Docker

Kubernetes

AWS

Git

Subversion

ClearCase

Job description

Date Posted: 2026-11-11 Country: United States of America Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS 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

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. This Software Engineer Internship position is within the Strategic Defense Solutions (SDS) business area. SDS develops and builds simulators and training systems for both military and commercial customers. Devices range in complexity from desktop trainers to high-fidelity weapon systems and full-flight training systems. This position is in Sterling, VA.

What You Will Do

• Design, develop, test, and debug real-time, multi-threaded, multiprocessing software applications, APIs, and associated user interfaces for simulation and training
• Regularly collaborate with other software engineers and project management to plan and prioritize development tasks on an Agile development team
• Support, maintain, and enhance existing software products as necessary
• Actively learn new technologies and techniques and apply them to new domains and problem sets

Qualifications

• Must be pursuing a Bachelor's or advanced degree in Software Engineering, Computer Engineering, Computer Science or related Science, Technology, Engineering, or Mathematics (STEM) major and actively enrolled through the completion of the internship/co‑op session.
• Object‑Oriented Design and Programming using C/C++ and/or C#
• Unit testing (GoogleTest, NUnit or similar) and software maintenance
• Source code control (Subversion, git, ClearCase, etc.)
• Agile, Kanban, or SCRUM development methodologies
• Windows 10, Windows 11, and/or Linux software development
• Experience may be obtained through on-the-job experience, research, coursework, or projects.

• Excellent written and oral communication skills
• AI/ML and/or OpenAI development experience
• Unreal Engine experience with C++ and Blueprints for gaming development.
• Virtual reality and mixed reality development experience
• Docker, Kubernetes, AWS, and other virtualization and cloud computing technologies
• RDBMS databases such as PostgreSQL
• Multithreading IPCs (e.g. Mutex, Semaphore, Shared Memory, etc.)
• Continuous Integration experience (Bamboo, Jenkins, TeamCity or similar)

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

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 42,000 USD - 88,000 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 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.

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.

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.