1. A job where one works serving alcohol and haram meat to non-Muslims or Muslims.
2. A job where one works for a company that gives donations to Israel?
The Supreme Leader's response to this question: Is it permissible to work at a factory that produces canned pork goods or at nightclubs or other corrupt establishments? And what is the ruling on the money earned from these types of jobs?
He stated: "It is not permissible to engage in haram jobs such as; selling pork, alcohol, establishing or running a nightclub, bar, casino or any corrupt establishment, and the earnings from these types of jobs are haram and one does not become the [legal] owner of the wages paid for such jobs." 
In response to the second instance, there is a question and answer from Hazrat Imam Khomeini (May Allah have mercy on his soul), which is as follows:
Question: Is it permissible for Muslims to work in Jewish institutions which donate money to help
Answer: Employment there is not permissible. Wages earned are haram, and if there is doubt then do not engage in working in such places.