I took a housesitting job for 20,000 yen a day.
In America, it's illegal to let small kids look after their homes alone.
If you want to travel for two months, you need to hire a caretaker.
You know how 留守 means "absence" or "away from home"? Well, now that you're absent from your home, it's someone else's turn to come to your home and take care of it. This person is the caretaker, someone who's looking after one's house.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well. Knowing 留守 will be important as well.