Systems Security Engineering Intern (Summer 2027)

Prattwhitney; Fullerton (CA); On-site; USD 42,000 - 88,000; Full time

Benefits offered by this job

Medical insurance

401(k) match

Paid time off

Job summary

RTX in Fullerton, CA is seeking a Systems Security Engineering intern/co-op. The role focuses on cyber security, software assurance, and supply chain risk management across sensors, ground radars, and platform systems.

You will join a highly visible team delivering technically challenging assignments that protect our nation and Warfighters, with mentorship and hands-on experience in cybersecurity engineering within Mission Systems.

Qualifications

• Pursuing a STEM degree and enrolled through the internship/co-op session.
• Minimum 60 hours of credit by the start of the internship / co‑op session.
• Experience with MATLAB or Python for data analysis and automation.

Responsibilities

• Support program protection implementation on sensors and platform systems.
• Collaborate with engineering teams to perform security engineering tasks.
• Work onsite at RTX in Fullerton, CA and contribute to project milestones.

Skills

Quick learner

Motivated

Education

Bachelor’s or Advanced degree in STEM

Tools

MATLAB

Python

Job description

Date Posted: 2026-10-08 Country: United States of America Location: US-CA-FULLERTON-675 ~ 1801 Hughes Dr ~ BLDG 675 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

Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk Management to support Program Protection Implementation on Sensors, Ground Radars, and Platform systems.

Join our highly visible team and perform technically challenging assignments, which will directly contribute to protecting our nation and our Warfighters.

This is an onsite position at Raytheon in Fullerton, CA. You will support, contribute, and collaborate in a team environment, receiving inputs from the program or team experts, and work on different projects, determining and developing approaches and solutions. Collaborate across many engineering disciplines to execute program milestones.

What You Will Learn

You will gain technical experience, mentorship opportunities, and exposure to established cybersecurity engineers within Mission Systems that will help advance your career. You will become knowledgeable in a variety of cybersecurity tools and policies in the ever‑evolving cybersecurity engineering and program protection field.

Qualifications

• Must be pursuing Bachelor’s or Advanced degree in Science, Technology, Engineering or Mathematics (STEM) and actively enrolled through the completion of the internship/co‑op session.
• Must have a minimum of 60 hours of credit by the start of the internship / co‑op session.
• Experience with tools, such as MATLAB or Python, for data analysis and automation Experience may be obtained through on‑the‑job experience, research, coursework, or projects.

Preferred Qualifications

Specific majors: Systems Engineering, Cybersecurity Quick learner and motivated Prior internship, co‑op, or work experience Current/Active DoD security clearance or SSBI undefined

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.
• 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.

Relocation Eligibility

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 position requires ability to obtain a security clearance. DCSA Consolidated Adjudication Services (DCSA CAS), 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: Security Clearance FAQs - United States Department of State.

Salary

The salary range for this role is 42,000 USD - 88,000 USD. 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.

Company Culture & Values

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.

Equal Opportunity & Diversity

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

Privacy Policy and Terms: Click on this link to read the Policy and Terms.

Application Process

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.

Company Overview

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.