Senior Principal Systems Engineer (Onsite) with Security Clearance

Senior Principal Systems Engineer – Effectors position located in Tucson, AZ. The role requires a U.S. security clearance (Secret) and is reserved for U.S. citizens. This role involves coordinating with customers and cross‑disciplinary engineering teams to develop CONOPS, system architecture, requirements, and to manage qualification, verification, and validation activities throughout the systems engineering lifecycle.

What You Will Do

• Interface with customers and key suppliers.
• Develop CONOPS.
• Develop and refine system architecture.
• Develop and refine system requirements and lead team in producing subsystem level requirements.
• Perform functional and physical analyses.
• Perform functional allocation.
• Develop and lead requirements verification strategies and plans.
• Develop integrated systems security solutions.
• Plan and execute system level to subassembly integration, verification, and validation.
• Support system deployment, production, and life‑cycle logistics.
• Cross‑functional collaboration and coordination.
• Establish and maintain relationships with other programs, program leadership, and the customer community.
• Coordinate with program leadership on long‑term strategy and planning.
• Review and support trade studies, down‑selects, and other analyses.
• Manage CDRL delivery, report development, and presentation.
• Develop materials for customer meetings and briefings.

Qualifications You Must Have

• Bachelor’s degree in Science, Technology, Engineering, or Mathematics (STEM preferred) and at least 10 years of prior engineering experience.
• Experience in systems engineering, test systems and environments, system architecture, and/or design.
• Experience working on an integrated, cross‑functional team of systems engineers and multidisciplinary engineers.
• Experience leading teams through developmental gates such as Systems Requirements Review, Preliminary Design Review, Critical Design Review, or Test Readiness Review.

Qualifications We Prefer

• Post‑graduate degree in Engineering, Computer Science, Math, or Physics.
• Understanding of the systems engineering product development cycle.
• Detailed experience in one or more of: embedded software, nuclear survivability, RF signal processing, GNC, RF system integration & test, 6‑DOF/model development.
• Prior experience delivering technical briefs or presentations with strong verbal and written communication skills.
• Experience interfacing with customers and developing/ refining CONOPS, system architecture, system requirements, and requirements verification strategies and plans.
• Experience performing functional and physical analyses and allocation.
• Experience creating and maintaining specifications.
• Experience in subassembly and system integration and verification.

What We Offer

• Values-driven culture focused on safety, trust, respect, accountability, collaboration, and innovation.
• Relocation assistance available.
• Competitive salary range: USD 132,400 – 251,600.
• Comprehensive benefits including medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, parental leave, paid time off, and holidays (subject to business unit).
• Eligibility for annual short‑term and/or long‑term incentive compensation programs.

Equal Opportunity Employer

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 applicable 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.