Principal Mechanical Engineer - Structural Engineer

Date Posted: 2026-10-21 Country: United States of America Location: US-AZ-TUCSON-805 ~ 1151 E Hermans Rd ~ BLDG 805 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 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. Raytheon brings 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. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defense. 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. The Mechanical Analysis and Test (MA&T) Department is responsible for ensuring structural and thermal design robustness across the Raytheon portfolio of products. From preliminary concepts to fielded weapon system support, MA&T delivers innovative structural and thermal engineering solutions utilizing methods ranging from classical fundamental & empirically based techniques to state-of-the-art finite element methods leveraging industry leading commercial tools; all complimented and validated by tests executed in a manner to ensure cost effective yet technically balanced solutions. Raytheon is seeking an experienced Principal Structural Engineer to join the Mechanical Analysis and Test Department. In this role, you will be responsible for detailed structural analysis to support all phases of programs including development and production. The analyses will cover a wide range of difficult problems, requiring solutions that are imaginative, thorough, practicable, and consistent with organization objectives. The analysis tasks span the spectrum from classical hand calculations to detailed analyses requiring the use of finite element analysis software. A structural analyst of this salary grade is expected to have a high degree of technical competence and be a recognized technical leader and/or leader of teams of engineering analysts. The selected candidate will be able to work under general direction and will be expected to define the scope and level of analysis/test required to meet objectives and assist in program planning. You will also be held accountable for your individual work and the work of others on your team within the agreed upon cost and schedule. It is expected that you will present your work for peer reviews and be a peer reviewer for other engineers’ work. The customers of this position will include internal personnel and programs as well as external Government(s) personnel and programs. What You Will Do Perform detailed structural analyses to support all phases of programs Generate test plans required to validate analyses and verify hardware compliance to customer requirements Analyze test data to validate and correlate models, and/or generate mechanical loads and environments Work with limited oversight on complex problems to provide the answers needed under program cost and schedule constraints Coordinate and lead technical peer reviews ensuring the technical accuracy of work product as well as acting as a reviewer for others work products Present results to internal stakeholders and external customers Generate detailed, archival technical reports Travel to test sites to support test or design discussion (depending on work assignment) Act as a technical leader (help define and develop MA&T department technical processes and tools) and lead teams to meet program milestones Qualifications You Must Have Typically requires a bachelor’s degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience; An advanced degree in a related field may be substituted for additional years of experience as follows: Master’s is equal to 2 years of experience or a Ph.D. is equal to 5 years of experience Experience running complex structural analysis with any of the following tools: PATRAN, NASTRAN, ANSYS or equivalent software Dynamic, Static, Non-linear, Transient, etc… Experience with mechanical principles to solve classical structural analysis both inside and outside finite element tools Experience leading teams and strong interpersonal skills working in a team environment Ability to obtain a U.S. government issued security clearance. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance, Clearance must be active and transferable prior to start date Qualifications We Prefer Advanced degree in aforementioned disciplines. ABET is the preferred, although not required, accreditation standard. 10+ years of professional experience in the structural analysis of complex systems that require collaboration of multiple engineering disciplines (such as a weapon system) Experience in structural testing: planning, organization, execution, data reduction and correlation Ability to travel to government and other facilities in support of program activities What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Safety, Trust, Respect, Accountability, Collaboration, and Innovation. Relocation available. The salary range for this role is 118,300 USD - 224,900 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills. 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. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement. 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. 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. 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. 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. #J-18808-Ljbffr RTX