First step was a group activity. Initially each person introduced themselves (education, experience, goals, etc). Next we were given out a short story full of ambiguities to answers questions about, individually, in groups of three, then form a single consensus to compare to an official set of responses. Afterwards, individually, we were asked to write essays about the open-source software market.
Second interview was individual, with a senior solutions architect, the team manager and an HR rep. We had to prepare a presentation about a business case and answer varied questions.