Does sin befall an employee who prepares and programs vehicle tracking devices if these devices are used in alcohol transport vehicles, given that he cannot prevent the company from dealing with such parties, and must he leave his job?

It is not permissible to install devices in vehicles transporting alcoholic beverages if this involves promoting or assisting in their sale, as this constitutes cooperation in sin, which is forbidden by Islamic law. The Prophet, peace and blessings be upon him, cursed the carrier of alcohol. You must advise the company owners, and if they do not respond and you are compelled to perform this work, then you must leave it.