At Boeing, we innovate and collaborate to make the world a better place. Were committed to fostering an environment for every teammate thats welcoming, respectful and inclusive, with great opportunity for professional growth. Find your future with us. Boeing Defense, Space & Security (BDS) is looking for a Senior Mechanical Systems Design & Analysis Engineer to join our team Phantom Works teams in Hazelwood, MO. Phantom Works programs develop complex, highly integrated, advanced systems, enabling future growth for Boeing and our Department of Defense (DoD) Customers. Individuals that aspire to lead technical teams, drive innovation, and take action to solve challenging problems, while shaping the future are ideal candidates for this position. If you thrive in a fast-paced culture, eagerly take action, set high standards for yourself, passionately honor commitments, strive to be the best and deliver results to achieve the unthinkable- this role is for you! Position Responsibilities: Lead and provide technical quality review of the development and documentation of mechanical and fluid systems and thermal environment to establish the system design Lead activities to validate and verify mechanical and fluid systems requirements Lead the development, maintenance or modification of system components' designs/proposals to provide installation and detail documentation Perform and document analyses Manage supplier development, test and production activities and direct the supplier to optimize integration and achieve program goals Prioritize, delegate and track performance and documentation of analyses of mechanisms/landing gear/ordnance components and systems selecting appropriate methods to validate or assess the design Support proposal preparation and new business development efforts Train and coach others Work under minimal direction This position is expected to be 100% onsite. The selected candidate will be required to work onsite at one of the listed location options. This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active This position requires ability to obtain Special Program Access, for which the U.S. Government requires U.S. Citizenship only. Basic Qualifications (Required Skills/Experience): Bachelor of Science degree from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), chemistry, physics, mathematics, data science, or computer science 9+ years of working experience with a Bachelors OR 7+ years with a Masters OR 4+ years with a PhD Experience with Model Based Engineering tools (NX, NX motion, Teamcenter, Hyperworks, MSOSA or equivalent) Experience with development and integration of Armament related hardware on Military Aircraft including pneumatic suspension and release equipment, pyrotechnic suspension and release equipment, pneumatic systems, compressors, and pylons Experience with integration of weapons, pods and external fuel tanks on Military Aircraft Experience with supplier developments and procurements including development of procurement specifications, technical evaluation of supplier proposals, technical coordination with suppliers, and supplier component qualification Relocation: This position offers relocation based on candidate eligibility. Typical Education/Experience: Education/experience typically acquired through advanced technical education from an accredited course of study in engineering, engineering technology (includes manufacturing engineering technology), computer science, engineering data science, mathematics, physics or chemistry (e.g. Bachelor) and typically 9 or more years' related work experience or an equivalent combination of technical education and experience or non-US equivalent qualifications. In the USA, ABET accreditation is the preferred, although not required, accreditation standard. Drug Free Workplace: Boeing is a Drug Free Workplace where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies. At Boeing, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities. The Boeing Company also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements. Pay is based upon candidate experience and qualifications, as well as market and business considerations. Summary pay range:$115,600 - $ 156,400 Applications for this position will be accepted until Feb. 20, 2026 Export Control Requirements: This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a U.S. Person as defined by 22 C.F.R. 120.62 is required. U.S. Person includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee. Export Control Details: US based job, US Person required Education Bachelor's Degree or Equivalent Required Relocation This position offers relocation based on candidate eligibility. Security Clearance This position requires an active U.S. Secret Security Clearance (U.S. Citizenship Required). (A U.S. Security Clearance that has been active in the past 24 months is considered active) This position requires ability to obtain program access, for which the U.S. Government requires U.S. Citizenship only. Visa Sponsorship Employer will not sponsor applicants for employment visa status. Shift This position is for 1st shift Equal Opportunity Employer: Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.