Key Responsibilities: Collaborate on aircraft and mission system modification projects. Develop design data packages. Ensure compliance with civil or military airworthiness regulations. Manage certification programs and documentation.Essential Requirements: Extensive knowledge in areas such as structures, mission systems, or avionics. Experience in designing and integrating complex projects on aircraft. Proficiency in generating design data packages. Detailed understanding of Part 21, CS/FAR 23 and 25 regulations. Ability to compile, check, and verify certification documentation.Desirable Skills: Experience with King Air, Piper PA-31, 727, 757 aircraft. Understanding of DAOS and possibly AS9100.Management/Leadership: Mid to senior level role involving project management and leadership. Coordinate projects from inception to service release. Manage project teams to meet time and budget targets.Location: Based at our main site in Doncaster, with potential for hybrid working.Requirements: Right to Work in the UK. Valid UK Driving Licence. UK Security Clearance desirable