Databricks interview notes, page 8 of 22

“The single-user constraint is what threw me a bit.” The rest of the author's notes on Software Engineer interview at Databricks, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is more involved than a plain LRU cache question.” The rest of the author's notes on Software Engineer interview at Databricks, Onsite - Coding / Algorithms round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Three to five minutes sounds short until you're actually in it and realize you're rambling about tech choices nobody asked about.” The rest of the author's notes on Software Engineer interview at Databricks, Hiring Manager Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started with the obvious stuff: a job scheduler polling each bookstore's API on some interval, a database of user requests with expiry timestamps, and a comparison step that triggers a purchase.” The rest of the author's notes on Software Engineer interview at Databricks, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one took me a minute to even parse what they were asking.” The rest of the author's notes on Software Engineer interview at Databricks, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The key-value part was fine, I knocked that out pretty quick.” The rest of the author's notes on Software Engineer interview at Databricks, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“My first instinct was to just say 'add a buffer, schedule it at 1 AM' which is obviously wrong because you're just pushing the same problem further down the road.” The rest of the author's notes on Software Engineer interview at Databricks, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I went straight to the circular array with 300 buckets, which is the move, but I fumbled explaining why you reset a bucket when the timestamp gap exceeds 300.” The rest of the author's notes on Software Engineer interview at Databricks, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one took me a while to even parse.” The rest of the author's notes on Software Engineer interview at Databricks, Onsite - Coding / Algorithms round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one required actually implementing CIDR intersection and then subtraction, which can split a block into multiple smaller CIDRs.” The rest of the author's notes on Software Engineer interview at Databricks, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.