Structural Engineer III - Spacecraft Programs

Quantum Space is redefining mobility and maneuverability in space. Our high-mobility spacecraft platforms support national security, civil, and commercial missions with unmatched flexibility and propulsion capability. We build fast and iterate quickly.Who We’re Looking ForWe are seeking a Spacecraft Structural Engineer III to lead the design, analysis, and development of spacecraft structural systems across multiple flight programs. In this role, you will be responsible for ensuring structural integrity from early concept through flight, performing high-fidelity structural analyses, supporting hardware testing, and driving design decisions that balance mass, strength, and manufacturability.As a senior member of the engineering team, you will work closely with propulsion, avionics, thermal, and systems engineers to ensure structurally sound spacecraft designs while helping guide structural standards, modeling practices, and verification approaches across the company.Where You’ll Make an ImpactStructural Design & AnalysisLead structural analysis and design efforts for spacecraft primary and secondary structuresPerform detailed analyses including static, modal, vibration, shock, acoustic, and thermal-structural couplingDevelop finite element models to evaluate structural margins across launch and on-orbit environmentsConduct structural trade studies to optimize mass, stiffness, manufacturability, and system integrationStructural Modeling & SimulationBuild and maintain spacecraft finite element models (FEM) using tools such as NASTRAN, FEMAP, ANSYS, or equivalentGenerate analysis-ready models from CAD assemblies (Creo or similar) and ensure consistency between design and analysis configurationsDevelop analysis workflows and modeling practices to support rapid design iterationStructural Verification & Test SupportDefine structural verification strategies including analysis-based margin justification and environmental test plansSupport structural testing campaigns including vibration, acoustic, shock, and static load testingCorrelate FEM results with test data and update models to improve predictive capabilityCross-Functional IntegrationCollaborate closely with mechanical, propulsion, avionics, GNC, and thermal teams to ensure structural compatibility across spacecraft systemsParticipate in design reviews, technical discussions, and program milestones to ensure structural readinessIdentify structural risks early and propose mitigation strategiesTechnical LeadershipProvide mentorship and technical guidance to junior structural and mechanical engineersContribute to development of internal structural analysis standards, tools, and best practicesSupport program leadership with structural insights during key engineering and mission decisionsWhat It TakesBachelor’s or Master’s degree in Aerospace Engineering, Mechanical Engineering, or Structural Engineering7+ years of experience performing structural analysis for spacecraft, launch vehicles, or comparable aerospace hardwareStrong experience with finite element analysis (FEA) tools such as NASTRAN, FEMAP, ANSYS, Abaqus, or similarExperience building structural models directly from CAD assemblies (Creo, SolidWorks, NX, or equivalent)Expertise analyzing launch and dynamic environments, including sine/random vibration, shock, and acoustic loadsExperience supporting structural testing and model correlation using real hardware test dataKnowledge of aerospace structural materials, joints, fasteners, and lightweight structural design techniquesAbility to operate independently while collaborating effectively across multidisciplinary teamsNice-to-Have ExperienceExperience with spacecraft structural environments and mission loadsFamiliarity with composite structures, thin-walled pressure vessels, or propulsion system structuresExperience supporting environmental test campaigns, including instrumentation and fixture designFamiliarity with Python or MATLAB for analysis automation or post-processingExperience with fracture mechanics tools such as NASGROFamiliarity with aerospace structural standards such as NASA-STD-5001, SMC-S-016, or MIL-STD-1540Experience working in a fast-paced startup or rapid development environmentWhat You’ll GetOwnership – Responsibility for spacecraft structural design and analysis across flight programsInnovation – Hands-on involvement in developing next-generation high-mobility spacecraft platformsImpact – Your work will directly influence spacecraft flight readiness and mission successGrowth – Opportunities to shape structural engineering practices within a rapidly growing space companyCompensation – Competitive salary, equity, and comprehensive benefits, including medical, dental, vision, generous leave, HSA, 401(k) matchingLocation: Rockville, MD or Hawthorne, CABase Salary: $125,000 to $175,000The salary range for this role is an estimate based on a wide range of compensation factors. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Quantum Space's total compensation package.Additional RequirementsTo comply with U.S. Government space technology export regulations, including ITAR, applicants must be a U.S. citizen, lawful permanent resident, protected individual per 8 U.S.C.1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.Apply now. Join us in building the next generation of spacecraft.