Key Responsibilities: Developing and documenting interior payload system requirements for large aircraft modifications Reporting to the Interiors Engineering Manager and collaborating with the engineering team to identify and provide solutions for project requirements Using CAD to design modifications for aircraft cabin systems such as Layout of Passenger Accommodation (LOPA), Passenger Service Units (PSU), emergency equipment, galleys, monuments, and lavatories Modifying aircraft environmental systems including air conditioning, electrical, water, and waste systems Introducing new aircraft paint schemes and emergency marking systems Producing substantiation documents to demonstrate compliance with regulatory and operational requirements, including flammability documentation, design reports, ground test plans, and system safety analysis Compiling engineering documentation and instructions for continued airworthiness, including service bulletins and aircraft/component manual supplements Attending meetings, conducting aircraft surveys, and providing on-site installation support both in the UK and internationally Working closely with customers, vendors, MROs, regulatory agencies, and internal teams to deliver engineering solutions on time and within budget Job Requirements: Experience in aircraft interior design Proficiency with Part 21 and knowledge of regulatory requirements Strong CAD skills for developing engineering design solutions Ability to produce detailed engineering substantiation documents Excellent communication skills for collaboration with diverse teams and stakeholders A proactive approach to identifying and solving engineering challenges Benefits: Company pension Flexitime Free on-site parking If you are a talented Mechanical Design Engineer with a passion for aerospace and an eye for detail, we would love to hear from you. Apply now to join our client's innovative and collaborative team