An aircraft maintenance engineer is responsible for ensuring an aircraft operates properly and safely. A maintenance engineer may make repairs, troubleshoot problems, conduct inspections and make upgrades to aircraft. Daily duties may include inspections specified by the respective Aviation Authorities, scheduled maintenance, emergency repairs and record-keeping of all maintenance activities.

Aircraft maintenance engineers work with equipment that includes specialized aviation tools, diagnostic equipment, computers, x-ray machines and power tools. Work conditions may involve working on ladders or scaffolds, long hours working on emergency repairs and managing other maintenance staff. Maintenance engineers must carefully observe all rules and regulations prescribed by the respective Aviation Authorities when performing any job duty.