Our Mission At Vertical Aerospace, we are pioneering the way for electric aviation. The Valo, our eVTOL (electric, vertical, take-off and landing), 'zero emissions' aircraft will set a new safety standard for how we will navigate the sky. We won't realise our mission following the same legacy processes and traditions our predecessors followed, instead, we want to 'redefine' aerospace best practices. Valo is targeting airliner-level safety certification in 2028 ahead of entering service with our airline and operator customers. As an Advanced Mechanical Design Engineer (Thermal Runaway), you will join our Energy Storage team, working on one of the most critical safety challenges in electric aviation: thermal runaway prevention, mitigation and containment. You will play a key role in progressing thermal runaway testing, analysing test data, and translating insights into robust mechanical designs, simulations and qualification strategies. A typical day could involve supporting live thermal runaway tests, analysing results to inform next-stage design or simulation, collaborating with stress and manufacturing teams, or developing qualification strategies for novel materials and components. Support and progress thermal runaway testing activities at cell, module and pack level Analyse thermal runaway test data to guide simulation, design, manufacturing and future test activity Develop and own mechanical designs and mitigation concepts related to thermal runaway containment Work closely with stress, manufacturing, quality and test teams to deliver compliant, certifiable designs Own at least one thermal runaway–related commodity through design, test and Critical Design Review Produce high-quality CAD, drawings and PLM data using Dassault 3DX / CATIA Mechanical design experience within complex electro-mechanical systems (battery systems highly desirable) Experience with thermal runaway testing and/or simulation at cell, module or pack level is highly desirable Strong understanding of structural, thermal, electrical and manufacturing considerations for HV battery packs, ideally with cylindrical cells Knowledge of regulated engineering environments; Strong CAD and PLM capability, ideally using Dassault 3DX and CATIA Experience working in fast-paced engineering teams with evolving processes Familiarity with DFMEA, GD&T and engineering best practice (ISO GPS / BS8888) Degree in Mechanical, Aerospace or a related engineering discipline Experience in aerospace, automotive, motorsport, defence or energy storage Working at Vertical isn't your average role but for those seeking a challenge, a flexible, supportive organisation and an incredible team; 26 days holiday, plus bank holiday 5 extra days holiday when you get married or enter a civil partnership Award-winning digital health and wellbeing service (Help@Hand) Company performance based bonus - rewarding company and individual performance Company Share Scheme - open to every Vertical employee Company Pension Scheme - 5% and we match it Join the team today and help us shape the future of Advanced Air Mobility. We recognise that talent comes in various forms and we are committed to providing opportunities that create an environment of growth, diversity, and inclusion for everyone. For more information on how we will use your data, see our Legal section.