PrincipalSystemsEngineer-Algorithms

**Date Posted:** 2026-06-02 **Country:** United States of America **Location:** US-CA-FULLERTON-676 ~ 1801 Hughes Dr ~ BLDG 676 **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 **Raytheon Company, Managed by Collins Aerospace** At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Collins Aerospace, an RTX company, is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense. We are looking for **Principal Systems Engineers** in Algorithms to support the Joint Precision Approach and Landing System (JPALS) program. This individual will be required to run and test modeling and simulation of algorithmic models using Simulink and MATLAB. The work is highly technical, and the individual must be comfortable with documenting equations, derivation, and generation of plots in MATLAB. The individual must be comfortable with data and statistical analysis. The successful candidate must be able to work on individual tasks under limited supervision, or with a team to achieve operational targets and