Date Posted: 2025 08 19 Country: United States of America Location: MA131: Tewksbury, MA Bldg 1 Assabet 50 Apple Hill Drive Assabet Building 1, Tewksbury, MA, 01876 USA 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: Secret Current At Raytheon, the foundation of everything we do is rooted in our values and a higher calling â 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 a mid level career Senior 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 will span the spectrum from classical hand calculations to detailed analyses requiring the use of finite element analysis software. You will be expected to define the scope and level of analysis required to meet the objectives and will be held accountable for completing the work within the agreed upon cost and schedule. You will be expected to present your work for peer reviews and to 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 The Senior Mechanical Engineer â Structural Analysis job is in Tewksbury, MA and the position is onsite. Qualifications You Must Have: Typically requires a Bachelor's degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 5 years of prior relevant experience. In absence of a degree, 9 years of experience. An advanced degree in a related field may be substituted for additional years of experience Experience in structural analysis (i.e. PATRAN, NASTRAN, ANSYS, ABAQUS or equivalent software) Qualifications We Prefer: Working knowledge of mechanical principles to solve classical structural engineering problems both inside and outside of software tools Ability to work in a collaborative, team based environment and independently 8 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 Experience with dynamic shock and vibration analysis Experience with solid modeling CAD tool such as CREO or equivalent Experience with Matlab Experience leading teams and strong interpersonal skills working in a team environment Experience presenting to external customers Ability to travel to government and other facilities in support of program activities Advanced degree in aforementioned disciplines. ABET is the preferred, although not required, accreditation standard. 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. Learn More & Apply Now! Please consider the following role type definition as you apply for this role. Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products. #LI SM4 The salary range for this role is 82,000 USD 164,000 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. Privacy Policy and Terms: Click on this link to read the Policy and Terms RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry leading businesses â Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.