A married former Goldman Sachs executive charged with raping an Irish student during a wild August 2013 Hamptons party is headed to trial.

Jason Lee is “adamant’’ about fighting the charges against him in Suffolk County Supreme Court, said his lawyer, high-powered East End attorney Eddie Burke Jr.

Lee has staunchly maintained that the sex was consensual. The trial is set to start April 6.

The young woman who Lee is accused of assaulting in a bathroom at his summer rental house in Wainscott will take the stand against him, sources said.

The high-level financier was celebrating his 37th birthday at the Georgica restaurant when he and a friend invited a group of Irish workers here for the summer back to the rental.

The victim’s brother told cops about the rape allegation, and Lee was found hiding in the back of a car.