Sr Mass Properties Engineer

Reference: 718116BRPosted: 2026-06-17Location: King of Prussia, PennsylvaniaClearance: SecretCompany: Lockheed MartinDescription:Space is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more — we can innovate, invest, inspire and integrate our capabilities to transform the future. At Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.Join us in shaping a new era in space and find a career that's built for you.Mass Properties Engineering is the art and science of predicting the mass properties of a satellite, missile, aircraft, land vehicle or marine system before it is built, assessing and supervising the mass properties all through development, and finally performing highly accurate measurements to prove to our customers it will perform as proposed. Our Mass Properties Engineers help ensure our spacecraft get payloads to the right orbit around our planet or around other objects in our solar system, help our missile systems intercept a threat and protect our troops, help deliver a payload with pinpoint accuracy, or help us develop smaller, lightweight directed energy weapons, so they can be deployed on a variety of platforms. As a Mass Properties Engineer, you will:• Provide Mass Properties Engineering support to multiple missile, reentry systems, or special programsCalculate mass properties and update and maintain mass properties database• Perform basic trade studies and make presentations at program design reviews• Lead mass properties audits, develop test procedures and perform mass properties measurements, then reduce and interpret measurement data into final user values• Facilitate Mass Properties Control Boards and weight reduction teams• Document and publish all types of analysis reports• Lead the mass properties effort on small programsTo promote the sharing of ideas, we at Lockheed Martin champion at work environment that supports differences and big-picture thinking.You have opportunities to play an active role in strengthening the quality of life where we live and work by volunteering more than 850,000 hours annually.Here are some of the benefits you can enjoy:• Medical• Dental• 401k• Paid time off• Work/life balance• Career development• Mentorship opportunities• Rewards & recognitionYou can learn more about Lockheed Martin’s competitive and comprehensive benefits package by visiting this link.We are an equal opportunity employer at Lockheed Martin. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.Basic Qualifications:• Proficiency in calculating the mass properties (mass, 3 axis centers of gravity, moments and products of inertia) of components and performing summation calculations into assemblies; developing simple software tools to perform these calculations• Performing mass properties analysis to resolve weight, center of gravity, mass moments of inertia, and products of inertia from assemblies down to the component level; tracking changes impacting mass properties; preparing mass properties reports and supporting design reviews• Interpreting detailed mechanism designs taken from manufacturing drawings or standard modeling software tools• Demonstrated experience in weight and center of gravity measurements by platform and multiple load cell methods, data reduction, and simple error analysis• Ability to develop and maintain mass properties databases and configuration control.• Knowledge and proficiency in applying industry standards (e.g., AIAA S 120 2015, TR-2018-01203, SAWE RP-9, SAWE RP-10).• Proficient in CAD (preferably PTC Creo) to extract component and assembly mass properties, perform model interrogation, and support engineering analyses.• US Citizenship with a Secret security clearanceDesired Skills:• Bachelor's degree in Engineering (Mechanical, Aerospace), Physics, or Mathematics• Demonstrated understanding of and interactions of other mechanical analysis groups including stress, structural loads and dynamics, thermodynamics, aerodynamics, propulsion and power systems, as well as subsystem designers to promote mass properties efficient design alternatives• In depth hands on experience with mass properties testing specifically with spin balance (rotary type) mass properties machines for aerospace components and assemblies, including: planning and executing spin balance test campaigns, leading static and dynamic balancing procedures, interpreting imbalance results, and applying corrective balance mass to bring parts within tolerance, documenting test results in compliance with aerospace standards and integrating findings into system level mass properties models.• Experience with applying manual and statistical tolerance analysis (Root Sum Square (RSS), Monte Carlo, worst case, etc..).• Serve as the mass properties SME for proposals/RFPs, quickly producing preliminary weight, balance, and inertia models using parametric estimations and historical data, and delivering clear, data driven analyses that support cost, performance, and schedule assessments.• Take task direction and prioritization from senior engineers and management in mass properties analysis, control, verification and database methods• Self-starter and able to perform multiple mass properties tasks• Perform simple mass properties estimation of preliminary design concepts.• Demonstrated proficiency with Microsoft Word, Excel and Power Point, solid modeling applications (IDEAS, Pro-E, or CREO), Mathcad and/or MATLAB and an understanding of other software analysis tools.• Experience as a key contributor for weight control and reduction efforts• Ability to support technical concerns with respect to weight reductions • Ability to write Mass Properties procedures, practices and/or specifications• Experience working on united product team, interacting with other engineering fields, technicians, subcontractors, and customer• Familiarity with manufacturing and assembly techniques & processes, developing test procedures, and performing data reduction• Demonstrated behaviors of a systems thinker with the ability to select and apply appropriate systems thinking skills to solve problems and implement constructive change • Missile or space segment design and test experience with one or more subsystems or fields outside of Systems Engineering• Excellent written and verbal communications skills, strong social skills, and ability to build consensus among peers while building solid relationships with team members• Active Secret security clearance with the ability to acquire and maintain a Top-Secret security clearanceSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.Clearance Level: SecretOther Important Information You Should KnowExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.Ability to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.Work Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.Schedule for this Position: 9x80 every other Friday offLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.The application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.At Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work. With our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.If this sounds like a culture you connect with, you’re invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.Experience Level: Experienced ProfessionalBusiness Unit: SPACERelocation Available: PossibleCareer Area: Mechanical EngineeringType: Full-TimeShift: First