I applied through an employee referral. I interviewed at Anthropic in Nov 2025
Interview
1 automated interview, 1 coding interview, then 5 interviews as part of the onsite including coding, project discussion, system design, culture fit, and hiring manager. The hiring manager was the worst interview I've ever experienced. Unbelievably rude, dismissive, and mocking. Having this interview follow the culture interview which prioritized ethics was ironic Everyone else was very positive and friendly throughout the interview process, but the hiring manager soured the entire experience.
They sent me an automated CodeSignal test before I ever spoke to a human, which consisted of 4 stages of the same problem with each stage getting progressively more complex. Did not progress beyond this stage.
Interview questions [1]
Question 1
They sent me an automated CodeSignal test before I ever spoke to a human, which consisted of 4 stages of the same problem with each stage getting progressively more complex. Did not progress beyond this stage.
The interview loop at Anthropic is completely different from the standard FAANG pipeline. They do not care about your ability to speed run algorithms. The entire process is built around "First Principles" thinking and writing extremely robust and safe code. After the recruiter screen, I had a deep dive pair programming session with an engineer. It felt much more like a collaborative work session than a test. They want to see how you handle edge cases and system failures in real time. I was asked to build a reliable message ingestion component that could handle streaming data with unpredictable latency spikes.
Applied online, had an initial recruiter screen and a few technical rounds. Did not make it to onsite. Questions were pretty difficult and thoughtful, different than typical coding and system designs online.
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