trou·ble·shoot·er 
/ˈtrʌbəlˌʃu:tɚ/ noun
plural trou·ble·shoot·ers /ˈtrʌbəlˌʃu:tɚ/ noun [count] 1 : a person who finds and fixes problems in machinery and technical equipment (such as computers) 2 : a person who tries to find solutions to problems or end disagreements
▪ a financial troubleshooter
▪ a financial troubleshooter
— trou·ble·shoot·ing /ˈtrʌbəlˌʃu:tɪŋ/ noun [noncount]
▪ troubleshooting tips
▪ troubleshooting tips
