Principal Design Engineer, London

Principal Design Engineer Hampshire (Hybrid - 3 days onsite)£65,000 - £85,000 + Benefits + Relocation + Visa Sponsorship (if required) Work on real climate-impact engineering. Not theory. Were hiring a Principal Design Engineer to join a fast-growing maritime technology company developing propulsion systems that reduce fuel consumption and emissions across global shipping.This is a hands-on leadership role where youll own key subsystems from concept through to production. What youll be doing Lead mechanical and structural design of critical subsystems Own wing geometry development - balancing performance and manufacturability Develop and manage load cases (real-world + classification)Translate requirements into robust, production-ready designs Perform and oversee FEA and structural analysis Act as technical lead with classification societies such as DNV and Lloyds Register Be the go-to expert for stress and fatigue analysis Work hands-on with CAD tools to develop and refine designsSupport and mentor junior engineers What youll need Degree in Naval, Mechanical, Structural or Marine Engineering 5-10 years experience designing marine structures within classification-approved environments Strong marine engineering background with experience working on large steel structuresFamiliarity working with classification societies such as DNV, Lloyds Register (LR), NK or similar Strong 3D CAD experience (NX, Inventor or similar) Solid FEA and hand calculations experience Strong understanding of DFMA and structural integrity Comfortable being hands-on with design and engineering deliveryBonus points if you have Fatigue, buckling, or large welded structures experience Exposure to aero-structures or performance-led design Structural testing and validation experience Why this role stands out Work on real clean-tech hardware Join a scaling engineering business Own designs from concept to productionGenuine career progression as the company grows TPBN1_UKTJ