Principal Mechanical Engineer

Date Posted: 2026-01-12 Country: United States of America Location: KY201: RMS Louisville 6201 Strawberry Lane Louisville, KY 40214, Louisville, KY, 40202 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: DoD Clearance: Secret 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 todays mission and stay ahead of tomorrows threat. Our team solves tough, meaningful problems that create a safer, more secure world. The Mechanical Products Team (MPT), Shipboard Effectors Department is seeking a Principal Mechanical Engineer for our Louisville KY site in both development and production support across multiple programs. This Principal Mechanical Engineering position performs in alignment to expectations in the design, development and production support areas associated with mechanical designs, validation principals, qualification processes, procurement, and production processes across a design life cycle. Development work may include requirements understanding, concept development, DFMAs, PFMAs, margin analysis, technical data package (TDP) development, application of geometric dimensioning and tolerancing principals, engineering test principals, preparation of technical analysis reports, and presentations in design reviews. This position is in on-site and located in Louisville, KY. What You Will Do: Creation and maintenance of detailed engineering documentation Be seen as a Subject Matter Expert for Mechanical Design issues providing mentorship, development and review of lower-level Engineers work. Strong collaboration and communication skills to work cross functionally with multiple stakeholders to gain alignment. Developing technical solutions to a wide range of complex problems related to the entire product life cycle including design, production, integration and test and design solutions for multiple systems. Meet cost, schedule, quality, and performance requirements for the finished product. Coordinate with other disciplines in the development of design verification test plans, qualification test plans, and producible designed Occasional travel to suppliers may be required to resolve production issues, technical performance issues or attend critical program engineering reviews. Qualifications You Must Have: Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 8 years of prior relevant experience or An Advanced Degree in a related field and minimum 5 years experience. 8 years of professional experience in mechanical design or related industry Experience with CAD solid modeling tools and analysis tools Experience with applying and interpreting GD&T Ability to obtain and maintain active U.S. government issued security clearance. U.S. citizenship is required as only U.S. citizens are eligible for a security clearance. Qualifications We Prefer: Leadership experience with small teams (4-6 people) Supplier interaction and supplier management experience Ability to collaborate in teams or independently. Experience in managing or mentorship of lower-level Engineers Experience in mechanical sub-systems packaging, materials, thermal, structural analysis, energetics principals, control systems, interconnect, airframe, or large assembly development Knowledge of Agile hardware development What We Offer Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world. At RTX we value: Trust, Respect, Accountability, Collaboration, and Innovation. Learn More & Apply Now! RTX solves some of the toughest challenges in aerospace and defense. That requires expansive thinking and bold innovation. 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. As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote. The salary range for this role is 107,500 USD - 204,500 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 candidates 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 companys 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 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.