What Reddit’s engineering interview actually tests
6 min read Reddit runs a short, scale-focused loop where even the coding rounds turn into questions about serving nearly 100 million daily users. Read article
Interview Prep
Interview Prep
What Cloudflare actually tests when it hires engineers
7 min read A walkthrough of Cloudflare’s engineering loop, the networking and systems questions they lean on, and how to prepare for the practical coding rounds. Read article
Interview Prep
How the DoorDash Engineering Interview Actually Works
5 min read What DoorDash actually asks software engineers in 2026, round by round, with real question phrasing and comp ranges. Read article
Interview Prep
What Rippling’s engineering interviews actually test
6 min read A round-by-round look at Rippling’s software engineer loop, from the 90-minute build round to the system design questions their team-based hiring tends to ask. Read article
Interview Prep
What xAI’s coding loop makes you actually build
7 min read The engineering loop at xAI is mostly small pieces of real infrastructure you build and debug live, from a TTL key-value store to a rate limiter. Read article
Interview Prep
How ElevenLabs interviews for a founder mindset
7 min read A round-by-round look at the ElevenLabs engineering loop, why the product decomposition interview decides most offers, and how to prepare for it. Read article
Algorithms
Which graph algorithm the question is actually asking for
8 min read The wording of a graph problem tells you whether to reach for BFS, DFS, topological sort, union-find, or Dijkstra. Read article
Algorithms
The Big-O table interviewers expect you to have memorized
7 min read The per-operation cost of every common data structure, the amortized-versus-worst-case traps, and how to state complexity out loud without getting corrected. Read article
Algorithms
The seven DP recurrences that cover most interview questions
7 min read The seven recurrences that cover most interview dynamic programming, with the tells that let you recognize each one before you write code. Read article
Tools & Reviews
Is LeetCode Premium or AlgoExpert actually worth paying for
6 min read A practical comparison of LeetCode Premium and AlgoExpert, and who each one is actually right for. Read article
Quant Finance
What Jane Street’s software engineer interview really tests
6 min read Jane Street’s software engineer loop is a remote coding screen and a full day of collaborative rounds, with no brainteasers, no separate system-design round, and no OCaml requirement. Read article
Interview Prep
How the Plaid software engineer interview really runs
5 min read A walkthrough of Plaid’s engineering interview loop, from the finance-themed coding rounds to the reliability-heavy system design and the behavioral bar. Read article
Algorithms
The concurrency cheat sheet for locks, deadlock, and atomics
7 min read A working reference for the concurrency primitives, deadlock, and lock-free tricks that come up in mid-to-senior interviews. Read article
Interview Prep
How to pass Ramp’s engineering interview loop
6 min read A round-by-round breakdown of Ramp’s engineering hiring process, from the CodeSignal assessment to the onsite, and the signals that decide the outcome. Read article
Coding Interview Questions
The SQL patterns behind almost every interview question
7 min read The recurring SQL patterns that show up across almost every database and data interview, each with a template query you can adapt. Read article
