FullStackSeniorSoftwareEngineer

**Date Posted:** 2026-05-28 **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: ** 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 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. Our Software Department in Fullerton, CA is looking to hire a Full Stack Senior Software Engineer to work onsite in Fullerton, CA**.** * [Our Culture | RTX Careers](https://careers.rtx.com/global/en/culture#benefits) _What You Will Do:_ This position offers the opportunity to work across multiple technology domains including back-end data processing, front-end web interfaces, and DevSecOps automation, while contributing to next-generation situational awareness and decision support systems. * Collaborate within an Agile team environment to design, implement, test, and deploy software components that enable real-time data collection, processing, and user interaction across complex distributed environments. * Design, implement, and maintain software applications using Python, SQL, JavaScript, and CSS. * Develop and integrate back-end data services and RESTful APIs to support real-time and historical data analytics. * Contribute to data pipeline development, ML Ops, and Data Ops workflows that improve automation, traceabil