Senior Mechanical Engineer

At Orbital Paradigm, we’re building autonomous space reentry capsules to enable routine, fast-return transport from orbit to Earth, supporting in-space manufacturing, science, and logistics.We are seeking a Senior Mechanical Engineer with at least 5 years of experience to work on the design, simulation, analysis, development, and testing of advanced space hardware, including re-entry vehicles and mission-critical mechanical subsystems.The role involves taking ownership of complex design tasks, from requirements definition through detailed design, analysis, prototyping, and environmental testing.Please notice this is a position mainly aimed at engineers with structural simulation and analysis expertise.Key Responsibilities- In charge of structural design, simulation and verification activities for aerospace structures and components- Perform FEA (Finite Element Analysis) for stress, vibration, fatigue, and thermal loads.- Support concept development through to detailed design, testing, up to AIT and qualification- Collaborate with multidisciplinary teams (aerodynamics, propulsion, systems, manufacturing).- Document engineering analyses, assumptions, and results for internal and external stakeholders.- Provide mentorship and technical guidance to junior engineers.- Contribute actively to design reviews and help establish engineering best practices.- Adapt to evolving requirements and fast-paced iterations.Required Qualifications- Bachelor’s or master’s degree in mechanical / aerospace engineering or similar (PhD a plus).- 5+ years of experience in aerospace mechanical / structural engineering.- Strong expertise in structural simulation (FEA / CAE), including static, dynamic, thermal, and fatigue analysis.- Solid understanding of aerospace materials and environmental testing ( Shock, Vibrations and Thermo-mechanical)- Experience with CAD software (e.G., CATIA, NX, SolidWorks).- Strong problem-solving ability and analytical mindset.- Good communication and documentation skills in English.Preferred Qualifications- Experience in aerospace, automotive, or other high-performance industries- Experience in a startup or small-company environment with fast design iterations.- Hands-on experience with manufacturing processes (machining, composites, additive manufacturing).- Familiarity with systems engineering and project management.- Track record of successful design from concept to flight-ready hardware.Personal Attributes- Startup mindset : proactive, resourceful, adaptable, and comfortable with ambiguity.- Willingness to go beyond the job description and take ownership of outcomes.- Team player with strong collaboration skills.- Passionate about aerospace innovation and eager to contribute to the growth of the company.What We Offer- Location : Madrid, Spain- Remote : Hybrid (2 days / week from home + 2 fully remote weeks / year)- Be part of a fast-growing space startup with real responsibilities.- 30 vacation days (23 flexible, +7 during holidays).- Salary range indicatively between 40 and 55 KEUR / year depending on seniority and profile- Company shares plan- Opportunities to grow with the company.