Would it be okay to contact him before the deadline (which is by the end of this month)?

Hi All,

I am very new to this forum. I would appreciate if someone could advice me on my question. I have been applying for a postdoc posn in US (advertised as well as cold email)and Europe (advertised posns) for the past 10 months with three publications in hand. No good news :(. Ninety percent of US professors didn't even write me back. Although one shortlisted, but turned out no finally.

For my PhD in Europe, I worked in a big project with lot of collaborators (PIs). Now there is a position in one of those PIs lab whom I have a good contact and the topic fits within my research experience. I applied for that position around half of November but no news yet. I heard from my referees that he had contacted them and they have given a good recommendation. Now my question is " Is it a good idea to contact the PI to ask if he has any updates reg. my job application?". I am really tensed. I feel that he doesn't consider me as a good candidate and that is why he is late to reply.

BTW in one job site the last date of application is end of this month and in other sites there is no last date.

Please advice me