LinkedIn interview notes, page 12 of 32

“I got the mechanics down fine, m_t and v_t, bias correction, the update formula.” The rest of the author's notes on Machine Learning Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Spent the first few minutes fumbling through clarifications I should've had a mental checklist for.” The rest of the author's notes on Software Engineer interview at LinkedIn, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“Started okay, said ARC inserts retain/release calls at compile time so you don't manage reference counts manually.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone 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 API and data model which felt safe, but the recurring events piece is where I started to lose the thread.” The rest of the author's notes on Software Engineer interview at LinkedIn, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I'd thought about LRU before so the doubly-linked list part felt familiar, but connecting it explicitly to a secondary key in a rank-based system took me a second to articulate.” The rest of the author's notes on Software Engineer interview at LinkedIn, 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 defining who the guest user actually is, someone not signed in, and tried to map out what they can and can't do versus a logged-in user.” The rest of the author's notes on Product Manager interview at LinkedIn, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I got the DP setup pretty fast.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The frequency counting part is fine, everyone gets that.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The two-hashmap approach clicked for me eventually: one maps keys to nodes, the other maps frequency counts to a doubly linked list of nodes at that frequency.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I jumped straight into discovery and forgot to anchor on who the user was first.” The rest of the author's notes on Product Manager interview at LinkedIn, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.