Goldman is a consensus culture, especially in the hiring process. WHile you need a champion to guide you through the process, you will need to impress and get on with everyone you meet, which could range between 10-30 people, depending on the area you're interviewing for. Expect to get interviewed across all levels (more junior and more senior). The interviews will vary from the interviewer to interviewer, though some may get very technical. Cultural fit is also very key. Most important will be how success driven you are, without coming across too aggressive. Its a passive aggressive culture.