Tethys Technology interview questions

Interview process was very long and grueling. Interviewed on two occasions with senior quants. The second really tested my knowledge based. Was extremely difficult interview and his personality was a bit standoffish but his comments on his interview style were fair. Took a mental math and logic test and then was moved into the final stage/ CEO interview. After 4 weeks of rescheduling the HR person told me the CEO closed the position. Entire process moved extremely slow and took over months.

Very efficient and everyone very nice. There were 4 interviews, and everyone was very detail. Explained the job well. First was HR, then Head of Sales, then Assistant Controller and finally CEO