Exa Corporation Applications Engineer interview questions

I was selected by the HR for further consideration by the Engineer Team. After approval, I had a Webex presentationl interview (a panel of two members) on one of my projects and a brief intro of myself. After a week, I had a discussion with the HR regarding start dates , eligibility, offer and expected salary range.

Called for an interview 6 months after application, no HR involved but team leaders only. Very long interview (4+ hours) up to president. Good presentation of the company, salary not negotiable.