Is lying at a job interview breaking a precept? Since lying is not really directed at a person, can it still be harmful? I have had multiple jobs before when the companies I worked for had no issues lying to me(on a organizational level) 

I can see how lying(when done successfully) can make myself believe I am something I am not and hence inflate my ego but what if this is not the case and the lying is only done with a sense of wanting to get a position and work hard and achieve something?
Causes of False Speech

The root causes of false speech are greed, hatred and delusion. 


Greed is the root cause when false speech is used to obtain 
material gain or status for oneself or someone dear to oneself. 
Hatred is the root cause when false speech is used to cause loss 
and bring harm and suffering to others.
Delusion is the root cause when it is used neither for one's gain 
nor to cause loss and harm to others, but for the sake of 
enjoyment such as lying for the sake of a joke, exaggeration to 
spice up a story, or flattery to please others, etc. 


Lying to get a job falls under the 1st category. So yes, it  does break the fourth precept.