It can certainly be doable. A few things to ask and some to do's...
			1) The timeline of how long she has been working is important. Need to get that nailed down. 
			2) The part time work she has done and the full time job she is going to work... are they the same job/company just going full time or different... if different, same/similar industry/job type? 
			3) How was she paid part time and now full time? Were both hourly? Or was there any commission/incentive or other variable income involved? 
			4a) The AU is a good start but she needs credit in her own name. You want to target 4 tradelines. The AU could be an issue as technically the only AU that is always ok is a when it is a spouse. Anything else can be questioned and forced off though normally underwriters do not enforce that much. 
			4b) She wants a mix of credit in there, so 1 term loan and then 3 credit cards/lines of credit (again, I would not count the AU to be on the safe side). For the term loan you can go one of two routes. Either establish a secured loan in her name with your CU or bank where you deposit money in a CD in her name and then do a secured loan off of that (make sure they report this to all credit bureaus) or you can do a Self 
https://www.selflender.com/refer/12828349 or Credit Strong  https://tracking.creditstrong.com/SH4a they do the same thing just different companies. Essentially you start paying into an account every month, they report this to the credit bureaus as a term loan. At the end of the term (whatever you choose) they close it and give you the money paid into it back minus their fees/interest. The secured loan is cheaper but you have to deposit money or she will (which usually for a FTHB they need all the cash they can get), the Self or Credit Strong cost more but don't require tying up capital. If you do the Self or Credit Strong, do it for the lowest monthly in a term that goes longer than the expected purchase of the home. 
			4c) As mentioned, 3 CC's. The timeline is important on this. If this is a "we want to get her ready to buy ASAP" situation then there is no better card than the Credit Builder Card 
https://www.creditbuildercard.com/occasiosolutions.html it is a secured card but is designed to improve credit quickly and it speeds up the process over any other card by 2-3 months. If this is the case, then do two of these cards (min deposit is $200) and then another card- I am a huge fan of Discover and she should be able to get the Discover Student card easily enough. Discover 
https://refer.discover.com/s/CHAD726 (if you have Discover, you can sign on and get a link to give her and you get $100 credit and she will get a $100 if she uses it within the first couple of months- if you don't feel free to use this link). If timeline isn't as important and we are more like a year out then get the Discover student card and then pick up a couple of other student cards as well (apply for Discover first, they are more conservative than other cards)
			5) Qualifying on her own depends on the above. If she can not qualify on her own, you could co-sign with her using your income to qualify as a second option. Using and using what for her income depends on the answers to the questions above. Credit depends on what she does as described above. 
			6) Most FTHB programs are marketing schemes to be honest. Most are DPA (Down Payment Assistance) and end up costing the borrower more over time than they get. Even more so in this rate environment as many tie the borrower up from not refinancing for a defined period of time depending on the program. Generally, should be avoided. 
			7) When ready to apply, reach out, I can get her connected to a broker that will help her out.