Philadelphia, PA·54 interview reviews·Hard difficulty
CodeSignal online assessment, then one 45-minute interview. Interviewer was friendly and helpful. 2 leetcode questions then 5 minutes for any questions I had. Got my results in a few days.
“Product of Array Except Self - Return an array where each element is the product of all other elements”
Had a recruiter screen first, then a technical round focused on system design and coding. The interviewer was very professional and walked through the problem step by step. Good overall experience.
“Design Rate Limiter - Implement an API rate limiting system”
The process was pretty straightforward. It started with an online assessment, followed by a phone screen, and concluded with a final interview round that had two LeetCode medium difficulty problems.
“Tell me about a time when you had to work with a difficult team member”
Online assessment was difficult, but the final round technical was just 2 leetcode questions. Studying tagged questions and general leetcode helps a lot. Interviewer was friendly and wanted me to succeed.
“Merge Two Sorted Lists - Merge two sorted linked lists into one sorted list”
The interview difficulty is rated 3.5/5 by candidates. 73% report a positive experience. Focus on Machine Learning, Python, Statistics to improve your chances.
The process typically takes 2–6 weeks from application to final decision, depending on the hiring cycle and team availability.
Most candidates go through a recruiter screen, followed by technical coding rounds, and a final interview loop. 66% of candidates applied online.
Common topics include data structures & algorithms (arrays, trees, graphs), system design, and behavioral questions using the STAR method. Practice with our AI mock interviewer to prepare.
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