Multi-step process: one test of data literacy (interpret these charts, multiple choice), one coding challenge with recoded video explaining solution (probably a LC easy). 2 interviews back-to-back with principals (personality fit convo, pretty casual and friendly). 2 interviews of collaborative ideation (one with a surprise topic, second with a take-home topic to brainstorm on for a few days beforehand). Overall, very involved, a lot of steps for a 3-month position (I think the total application time was longer than 3 months start to finish), but I understand that fellowships are often like a 3-month interview for a permanent position, so it makes sense. Be yourself, and be patient.

Was great and smooth - 3/4 rounds, technical and more general ones. technical had an exploration exercise. Talked to Associates and Principals, who also were fellows in the past. First round was more to understand my background and research.