What does an aircraft environmental control system engineer do?

An Aircraft Environmental Control System Engineer designs, develops, tests, and maintains systems that regulate the internal environment of an aircraft. This includes managing air conditioning, cabin pressurization, ventilation, and sometimes humidity and temperature control to ensure passenger and crew comfort and safety. They work closely with other engineering teams to integrate these systems with the aircraft's overall design and ensure compliance with safety and regulatory standards. Their work is crucial for maintaining suitable conditions at high altitudes and varying external environments.