I applied for the job online, from the SPIE job-search website. I was contected by the PI of the project after a few weeks and he invited me for a phone interview. The interview lasted about half an hour and I was asked a few questions related to the job. At the end of a phone call I was invited for a live job interview. I was asked to give a talk about my previous scientific career. LBNL payed for the travel and lodging expenses. The day after the interview I received a job offer.