Principal Systems Engineer

Company Overview

RTX, the world’s largest aerospace and defense company, combines more than 100 years of experience with advanced engineering expertise to develop solutions that defend freedoms and deter aggression. The company operates three market‑leading businesses and invests heavily in research, development, and innovation.

Systems Engineers are needed to support missile programs in the Systems Engineering and Test Capabilities (SE&TC) organization. The role focuses on the Systems V life cycle – from concept development to production and maintenance – and includes hardware and software integration, verification, and troubleshooting for missile systems such as Standard Missile, Tomahawk, Javelin, Coyote, AMRAAM, Storm Breaker, and emerging hypersonic and space technologies.

• Update, maintain, and improve requirements and documentation for development and production efforts, including software and hardware subsystems.
• Create and manage system architecture, interface definitions and description documents, and oversee system integration and verification, collaborating with multiple product team leads and subject matter experts.
• Participate in technical discussions with the customer and work with suppliers and the supply chain organization as the Responsible Engineering Authority (REA).
• Lead verification and validation activities, ensuring that all requirements are assessed during Verification and Qualification testing.
• Conduct trade studies, present results to customers, and support system performance analysis.
• Collaborate with Software, Hardware, Configurable Logic, and Test teams, providing technical expertise in development, integration, troubleshooting, and failure investigations.
• Lead systems verification reviews with the Chief Engineer, Lead Systems Engineer, and Integrated Product Team Leadership.
• Serve as the subject matter expert and mentor for team members and external stakeholders, facilitating knowledge transfer and cross‑functional collaboration.
• Support statistical process control assessments, test equipment software integration, and provide leadership on contract data releases (CDRLs) and technical data packages (TDPs).

• Bachelor’s degree in STEM (Electrical Engineering, Systems Engineering, Physics, Mathematics, or related field).
• Minimum of 8 years of relevant experience (5 years for entry‑level).
• Experience in software, firmware, configurable logic, hardware, integration, or test.
• Knowledge of Model‑Based Systems Engineering (MBSE), requirements development, management, verification, system architecture, and verification strategy.
• Active, transferable DoD Secret clearance required; U.S. citizenship required.

• Top Secret clearance.
• Experience presenting analytical and technical material.
• Agile development practices and digital engineering tools.
• Background in the defense industry and military systems, including tactics, techniques, and procedures.
• Experience with foreign military sales, risk mitigation, and multi‑disciplinary team coordination.
• Familiarity with DOORS, Cameo, C‑PDM, and performance analysis.
• Strong interpersonal, communication, and documentation skills.
• Knowledge of system safety, reliability, and configuration management.

Location:

Tucson, AZ. The position is 100% onsite with occasional travel.

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, veteran status, or any other protected class.