As far as we know, there is no specific du’a for obtaining a job in the Qur’an or the Sunnah. However, you can supplicate Allah with any words indicating your request. We implore Allah to crown all you effort with success and endow you with the best place where you can improve your scientific background and your commitment to Islam.
You are advised to utilize the times in which du`a’ is likely to be answered, including the following:
1- Du’a’ at the time before dawn, when Allah descends to bestow His bounty upon His slaves, to meet their needs and to relieve their distress, when He says: “Who will call upon Me, that I may answer Him? Who will ask of Me, that I may give him? Who will seek My forgiveness, that I may forgive him?” narrated by al-Bukhari
2- Following the prescribed prayers.
3– Between the adhan and the iqamah.
4– A certain time on Friday. The Messenger of Allah (peace and blessings of Allah be upon him) mentioned Friday and said: “During it there is a time when a Muslim slave does not stand and pray and ask Allah for something, but He will give it to him,” and he gestured with his hand to indicate how short that time is.” Narrated by Al-Bukhari and Muslim
May Allah guide all of us to what pleases Him!