A man who allegedly imported more than half a kilogram of MDMA to a parcel locker on Sydney's northern beaches will remain behind bars for the next eight weeks.

Jake Codling, 30, was arrested at a parcel pick-up facility at Mona Vale on Thursday, following an investigation by the NSW Police.

As Jake Codling allegedly collected a package containing MDMA, police arrested him. Credit:Edwina Pickles

The Rutherford man is alleged to have imported two parcels containing MDMA crystal that he purchased online, each weighing around 250 grams.

He was arrested at the parcel locker on Thursday and taken to Chatswood police station, where he was charged with one count of possessing a commercial quantity of a border-controlled drug.

The charges carry up to a lifetime imprisonment upon conviction.

Mr Codling came to the police’s attention following a tip-off from Australian Border Force officials, investigators said in a statement released on Friday.

He was refused bail to appear at Manly Local Court on Friday, where Magistrate Michelle Goodwin formally refused bail for him to appear in Central Local Court in April.