Glassdoor users rated their interview experience at Phaidra as 50% positive with a difficulty rating score of 2.88 out of 5 (where 5 is the highest level of difficulty). Candidates interviewing for Software Engineer and Frontend Engineer rated their interviews as the hardest, whereas interviews for Software Engineer (ML) and Software Engineer roles were rated as the easiest.
The hiring process at Phaidra takes an average of 10 days when considering 8 user submitted interviews across all job titles. To compare, the average duration of hiring at similar companies like BlackRock, Inc. is 14 days, Fabricated Software, Inc. is 2 days, and Apple Inc. is 21 days. Candidates applying for Senior Machine Learning Engineer had the quickest hiring process (on average 2 days), whereas Software Engineer roles had the slowest hiring process (on average 14 days).
Clear process. good conversations with the team. They happily answered all my questions to a good level. Seems like they're working on really exciting stuff as well. Would recommend applying at least
I applied online. I interviewed at Phaidra (Seattle, WA) in Mar 2026
Interview
Unreasonable Interview NDA- Stay Away: Following the recruiter phone screen candidates are required to sign an NDA with no carve outs for prior inventions or time limits on confidentiality obligations. Don't waste your time, its unconscionable to have candidates sign an NDA masquerading as a non-compete in the interview process.
A recruiter call is initially followed by a hiring manager interview. After that are the Coding and system design rounds. If you get through this you will have a culture fit interview as the final round and then you get an offer.
Interview questions [1]
Question 1
2 leet code medium-hard, Design a real-time monitoring system