Robotics Mechanical Engineer

Helsing · Barcelona · onsite Helsing is a defence AI company. Our mission is to protect our democracies. As a Robotics Mechanical Engineer based in Barcelona, you will be at the heart of Helsing's robotics engineering function, responsible for driving the mechanical architecture, design, and development of next-generation robotic systems. The Day-to-Day Lead the detailed design and integration of complex robotic subsystems, including high-precision actuators, structural chassis, and dynamic motion systems. Drive cross-functional integration with electrical and software teams to ensure seamless packaging, cable routing, and thermal and sensor integration. Define material selection strategies and fabrication methods, conducting FEA, stress analysis, and tolerance stack-up analysis to ensure designs meet rigorous functional, cost, yield, and lead-time requirements. Establish and advocate for mechanical engineering best practices, including modelling standards, GD&T drawing controls, and technical documentation. Critically evaluate system architectures in design reviews, identifying risks and delivering high-impact solutions that optimise performance and manufacturability. You Should Apply If You have shipped complex robotic, mechatronic, or automated systems to market, with a verifiable track record of ownership across the full product development cycle. You bring expert-level proficiency in 3D CAD modelling, ideally SolidWorks, combined with deep knowledge of GD&T for precision manufacturing environments. You have applied structural and thermal FEA, static simulations, and tolerance stack-up analysis to solve real engineering problems in production-grade systems. You have worked extensively across diverse manufacturing processes, including CNC machining, injection moulding, sheet metal fabrication, and additive manufacturing. You communicate complex technical decisions with clarity to cross-functional stakeholders. What We Offer Competitive salary and VSOP options Relocation support: up to €2,500 and 4 weeks temporary accommodation Learning: €500/£450 yearly allowance Health & wellness: gym membership and mental health support (Nilo.health) Social: regular company events and monthly social allowances Enhanced parental leave: 22 weeks fully paid for primary caregivers & 6 weeks for secondary caregivers Family support: 5 days of paid family emergency leave, 100% remote work option during pregnancy and phased return to work