Senior Spacecraft Analysis Engineer

Senior Spacecraft Analysis Engineer About AetherfluxAetherflux is building the infrastructure to power and connect the orbital economy. Our satellites operate in Low Earth Orbit to collect sunlight and enable a new class of capabilities-from transmitting energy via infrared lasers (space-to-earth and space-to-space), to powering on-orbit compute, to delivering secure, high-bandwidth optical data. By rethinking how energy and data are generated and distributed in space, we're unlocking entirely new ways to operate both in orbit and on Earth.Founded in 2024 by Baiju Bhatt (co-founder of Robinhood), Aetherflux is backed by leading investors and built by a team from top aerospace and defense organizations. We're moving quickly to solve complex technical challenges and build a new category of space infrastructure.The RoleWe are looking for a Spacecraft Systems Analysis Engineer to drive high-impact modeling, simulation, and performance analysis across our satellite platform. This is a multidisciplinary role where you will inform key design decisions across spacecraft subsystems through rigorous analysis and system-level thinking.You will bring deep expertise in one or more domains-such as structural, loads, and dynamics, thermal, radiation, reliability, power, MMOD (micrometeoroid and orbital debris), fluids, or optical/brightness analysis-while operating with a strong understanding of how these systems interact at the spacecraft level.This is a high-growth role with the opportunity to take ownership of critical analyses and directly influence at the spacecraft level.ResponsibilitiesPerform system-level modeling and simulation to evaluate spacecraft performance across multiple subsystemsDevelop and own analysis in one or more domains: structural, thermal, radiation, reliability, power, MMOD, fluids, or optical/brightnessConduct trade studies and sensitivity analyses to inform design decisions and optimize system performance, mass, and reliabilityCollaborate cross-functionally with mechanical, electrical, GNC, and software teams to guide design and integration decisionsDefine and maintain analysis-driven requirements, margins, and verification strategiesInterpret simulation results and translate findings into actionable engineering insightsSupport test planning and model correlation, ensuring alignment between analysis and hardware performanceDevelop and maintain technical documentation, including models, assumptions, and analysis reportsSupport environmental qualification and on-orbit performance predictions, including thermal, radiation, and debris environmentsParticipate in design reviews (PDR, CDR), providing analytical rigor and recommendations at the system levelBasic Qualifications3+ years of experience in engineering analysis (internships and relevant projects count)Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Physics, or a related fieldExperience or academic exposure to at least one analysis domain:StructuralLoads and DynamicsThermalFluidsRadiationReliabilityPowerMMODDemiseOptical / brightnessFamiliarity with engineering simulation tools (e.g., FEA, thermal modeling, MATLAB/Python-based analysis)Strong fundamentals in physics-based modeling, numerical methods, and engineering principlesAbility to interpret data and translate analysis results into actionable engineering insightsEagerness to learn and operate in a fast-paced, ambiguous environmentPreferred QualificationsHands-on experience applying analysis to real-world hardware or aerospace systems (internship, academic project, or industry)Experience with industry-standard tools (e.g., ANSYS, NASTRAN, Thermal Desktop, COMSOL, MATLAB/Simulink, Python)Experience performing multidisciplinary trade studies and system-level optimizationFamiliarity with space environment effects, including radiation, thermal cycling, and orbital debris (MMOD)Experience with test correlation, validating models against hardware or experimental dataExposure to power systems, thermal management, or structural dynamics in aerospace applicationsExperience working on high-reliability or safety-critical systems with strong validation practicesExperience designing or maintaining analysis workflows integrated with CI/CD or automated pipelinesDemonstrated ownership of complex analytical problems, from assumptions through model validationPrior experience at a space, aerospace, or deep tech organizationStrong interest in space systems, energy infrastructure, and mission-driven engineering challengesDisclaimerThis job description is a summary of the primary duties and responsibilities of the job and position. It is not intended to be a comprehensive or all-inclusive listing of duties and responsibilities. Contents are subject to change at Aetherflux's discretion.Export Control Requirement: To conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR), applicants must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.