2026 Intern Raytheon Software Systems Engineer

Date Posted:

Country:
United States of America
Location:
VA120: 2461 S Clark Street, Arlington 2461 S Clark Street Suite 1000, Arlington, VA, 22202 USA
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:
DoD Clearance: Secret

At Raytheon, the foundation of everything we do is rooted in our values and a higher calling - to help our nation and allies defend freedoms and deter aggression. We bring 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. Our team solves tough, meaningful problems that create a safer, more secure world.

The Integrated Solutions Modeling & Architecture (ISMA) Department supports customer focused mission modeling and simulation activities for all customer areas at Raytheon. Our teams develop, analyze, and create flexible integration solutions crossing all product areas such as sensors, effectors, command and control, logistics, and operations. They develop tools and methods to evaluate campaign, mission, and system level analysis and visualizations based on customer requirements.

What You Will Do

• This is an onsite internship for modeling and simulation (Mod Sim) using our Python-based proprietary Mod Sim software. You will learn to support design, development, and utilization of medium-fidelity digital simulation software in advanced technical computing environments.
• You will contribute to evaluating intern-level appropriate work across a wide range of intriguing problems to answer operational questions such as:
  • What should the next military system-of-systems look like?
  • What is the effectiveness of new technologies against large-force adversary and multiple threats?
  • What counter-measures should be considered to increase efficiency and/or improve survivability, and what are the answers to the customer's operational performance questions?
  • What numbers and costs get the best performance?
• You will contribute to mission-level system modeling and data analysis activities to support new business, system-of-systems design, and operational impacts of new concepts of operations.
• You will learn the skills which set apart this high performing team from other endeavors in the industry. You will collaborate with your team using inputs from program, external customers, or team experts. You will learn modeling & simulation principles and skills while working on projects across multiple military operational domains (aerospace, maritime, subsurface, land).
• You will support and build Mod Sim software and analyze results to influence the product lifecycle.
• You will develop and implement model-based solutions to support mission trade studies using mission level simulations to ensure they meet defined requirements and performance.
• You will innovate and explore ideas which make a difference.

Qualifications You Must Have

• Must be a rising Senior by the start of Summer 2026 majoring in Science, Technology, Engineering, or Mathematics (STEM), or equivalent.
• Academic experience of modeling and simulation, or related disciplines.

Qualifications We Prefer

• Specific majors: Systems Engineering, Software Engineering, Operations Research, Math, Applied Math, Industrial Engineering, Physics, Aerospace Engineering, or similar.
• Minimum 3.0 cumulative GPA is required.
• Knowledge of the system engineering life-cycle model.
• Completion of at least one course in data analysis and/or statistics.
• Coursework or demonstrated experience in at least two of the following areas:
  • Software development processes/object-oriented software design.
  • Scripting languages such as Python, Shell or Perl.
  • Numerical computing environments such as MATLAB.
  • AI/ML and high-performance computing (HPC) grids.
• Demonstrated desire to work with a high performing team.

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

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.
• Please upload a copy of your most recent transcripts with your resume when applying to this requisition. Include your cumulative GPA and projected graduation date on your resume

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.

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