This was the worst interview process of my life. The people were generally nice, but the logistics and the last-minute changes were not only annoying, they reflected a general lack of respect for the candidate's time. Maybe MIT should have included some mandatory humanities subjects that would have made the founders a little less mechanical ;)
Generic programming questions, nothing extraordinary.
The following metrics were computed from 2 interview experiences for the Lightmatter Software Engineer role.
Lightmatter's interview process for their Software Engineer roles is extremely selective, failing the vast majority of engineers.
Candidates reported having very negative feelings for Lightmatter's Software Engineer interview process.