At Orbital Paradigm, we design, develop, manufacture, and operate reusable orbital logistics systems. Our spacecraft perform multiple orbital mission profiles and return safely to Earth through hypersonic atmospheric reentry and landing with pinpoint accuracy for rapid refurbishment and reuse.Role DescriptionWe are looking for a Mechanical Design Engineer to join our mechanical engineering team. The role covers the full hardware development lifecycle, from concept and detailed design through manufacturing, assembly, integration, and testing.The position requires strong practical engineering capability in mechanical design, CAD modelling, manufacturing processes, tolerancing, technical drawings, fabrication methods, and mechanical interfaces. The engineer will work closely with suppliers, manufacturing partners, and multidisciplinary teams to deliver flight-ready hardware.This is a hands-on role involving direct participation in fabrication, assembly, integration, troubleshooting, and test activities.Key ResponsibilitiesDevelop 3 D CAD models, assemblies, and manufacturing drawingsDesign mechanical systems, structures, mechanisms, and interfacesPerform tolerance analysis and apply GD&T principlesSelect materials, fastening methods, and manufacturing approachesEnsure designs meet functional, manufacturability, and integration requirementsPrepare and maintain engineering documentation, BOMs, and CAD modelsInterface with suppliers, machine shops, and manufacturing partnersParticipate directly in hardware fabrication, machining, assembly, and integration activitiesSupport spacecraft and subsystem integration campaigns, including hands-on assembly and fit-check activitiesSupport functional, environmental, and qualification testing campaignsTroubleshoot and resolve manufacturing, integration,



and test-related hardware issues and non-conformancesContribute to iterative design improvements based on manufacturing and test resultsCollaborate across disciplines to support successful system developmentParticipate in design reviews and technical trade studiesRequired Qualifications4+ years of relevant professional experience in aerospace, automotive, or other high-performance industries.Degree in Mechanical Engineering, Aerospace Engineering, or related fieldStrong mechanical design and engineering fundamentalsProficiency with CAD tools (such as Hypermesh, Solid Works, CATIA, or equivalent)Experience producing manufacturing drawings and technical documentationPractical understanding of mechanical manufacturing, fabrication, assembly, integration, materials, fastening systems, and GD&T/tolerancing.Demonstrated end-to-end experience designing, manufacturing, assembling, and validating at least one mechanical component or hardware subsystem from concept through production and testExperience with spacecraft structures, aerospace mechanical hardware, or mechanically demanding flight or high-performance systems.Ability to work effectively in fast-paced hardware development environmentsStrong problem-solving ability and analytical mindset.Full proficiency in English, written and spoken.Preferred QualificationsFamiliarity with aerospace industry standards such as ECSS, NASA, or MILHands-on experience with manufacturing processes (machining, composites, additive manufacturing).Basic proficiency with one or more programming languages such as Python and MATLAB.Experience in a startup or small-company environment with fast design iterations.Good proficiency in SpanishWhat We ValueExcellence in technical work, execution, and professional conductStrong ownership mindset, with the ability to drive activities to clear outcomes through accountability, proactivity, and resourcefulnessClear, efficient, direct, and constructive communicationTeam-first attitude with low ego and strong cross-functional collaborationWhat We OfferLocation: Madrid, Spain (office-first)Adaptable hybrid work (2 days/week from home + 2 fully remote weeks/year)Salary depending on experience and profile between 40'000 and 55'000 EUR gross per yearRelocation package depending on seniority and profileFlexible compensation (meal vouchers, health insurance, public transport)

📌 Mechanical & Thermal - Mechanical Design Engineer (Madrid)
🏢 Orbital Paradigm
📍 Madrid