Occupation/occupations in Chinese is 职业（zhi’ye）。Pilot in Chinese is 飞行员（fei’xing’yuan）。Air traffic controller in Chinese is 航空交通管理员（hang’kong’jiao’tong’guan’li’yuan）。Aeronautical engineer in Chinese is 航空工程师（hang’kong’gon’cheng’shi）。
Bonus: Airline/airlines in Chinese is 航空公司（hang’kon’gong’si）。
Each word is going to be said once in English and five times in Chinese.