Group interview with 10 hiring managers, group exercise to see who you would save from a cave based on individual's attributes (then defend your assertions), tour of control room, Q&A, finished off with a multi tasking assignment where you had to solve math problems while simultaneously answering questions about emails which constantly came into your inbox and you had to read them first before you could answer the questions about them (while solving math problems at the same time). Two to three time hour time commitment.