Mechanical Design Engineer

We are seeking a skilled Mechanical Design Engineer to support the creation, development, and maintenance of complex mechanical designs and CAD data, working closely with cross-functional engineering teams. This role is suited to a proactive and capable engineer with strong experience in 3D CAD, a solid understanding of GD&T, and the confidence to contribute to technical discussions while continuing to develop their expertise. ZeroAvia is at the forefront of building a new clean‑aviation ecosystem, and the successful candidate will be joining a world-class team that is passionate about developing solutions that are not only zero-emission but also commercially competitive and technically groundbreaking. Responsibilities: CAD Design & Ownership: Take responsibility for CAD design and associated data for assigned components and assemblies, with support where required. Create detailed 3D CAD models of parts and assemblies (NX preferred). Produce high-quality 2D production drawings in line with ASME standards and applicable regulatory requirements. Maintain CAD and engineering assets within the PLM system (Teamcenter or similar). Contribute to CAD design solutions for technical challenges across multiple projects. Engineering & Analysis: Apply a sound understanding of GD&T, materials, finishes, and manufacturing processes. Demonstrate awareness of stress analysis principles and their impact on design decisions. Support simulation or analysis activities (mechanical, stress, thermal, or fluid) where required. Ensure designs align with aerospace regulatory standards where applicable. Cross-Functional Collaboration: Participate in design reviews and contribute to technical discussions. Work closely with internal teams, external partners, and manufacturing personnel to ensure clear understanding of design intent. Support liaison with operations during part manufacture, helping to resolve design issues and update drawings as needed. Experience & Qualifications: Degree in Mechanical Engineering Ideally 3–5+ years of industry experience Proficient user of 3D CAD (NX preferred) Good understanding of GD&T (ASME) Experience with Teamcenter PLM or similar systems Knowledge of materials, finishes, and relevant manufacturing processes (including additive manufacturing) Experience with fuel-cell-related systems (advantageous) Capable of producing high-quality CAD models and mechanical drawings At ZeroAvia, we’re clean sky thinkers. For the world to achieve truly clean, guilt-free flight, we need a scalable solution; hydrogen-electric powertrains. As a leader in zero-emission aviation and a UK Jet Zero Council member, we’re designing and commercialising hydrogen-powered solutions that will positively impact the future of aviation, global connectivity, and the world. Join us at our Global HQ in Cotswold Airport, home to some of our aircraft and the workplace of many ZeroAvians. Located just outside the historic market town of Cirencester, you’ll experience a workspace built by engineers for engineers. This is a high-velocity and fast-paced environment with good links to the M4 and M5, so it’s fitting that it’s also our UK Head Office. Why Join Us? We want to help you be your best self, at work and at home, that’s why we provide our employees with… Private health and dental care – get access to services and support when you need them. Add your family members too. Mental health support – enjoy a culture where positive mental health is front of mind with our trained Mental Health First Aiders, Employee Assistance Programmes and wellbeing support. Free lunch and healthy snacks – keeping you fuelled up so you can help us deliver the technology of the future** Sports, games and culture clubs – connect and keep fit with other ZeroAvians by joining one of our clubs – such as, running, cycling, padel, trivia, theatre and gardening. We also offer: Stock options – so you can share in our success. 25 days holiday, plus public holidays and additional days awarded for long service – to help you manage your work-life balance. Free EV Charging and membership in our EV Club. Salary Sacrifice Schemes for EV Club, Curry's Tech and Cycle to Work Weekly Spot Bonuses to reward excellence. Income Protection and Legal Support for peace of mind. Relocation Support to make your move seamless. Diversity and Inclusion As an emergent company shaping the aviation industry, we know that diversity fuels success and unlocks potential. We embrace being an equal-opportunity employer and actively seek individuals from diverse backgrounds. We value the multitude of skills, perspectives, and mindsets everyone can bring to the table. These experiences ignite creativity, originality, and growth. We proudly reject discrimination in all forms, including that based on race, religion, color, national origin, sex, gender expression, sexual orientation, age, marital status, veteran status, or disability status.