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Paxos Software Engineer Interview Questions
& Process

Real candidates share what happened, how many rounds they had,
and how the experience turned out.

Based on 36 interview experiences · FREE TO READ

3.4 Rounds average
Average Typical difficulty
22.2% Positive experience

Candidate interview experiences

First-hand accounts from people who interviewed at Paxos.

Showing 3 of 36
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Paxos

Software Engineer

Engineering · nearly a year ago

Senior Average Negative experience No offer 7 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite Presentation Panel Offer
Interview formats
Coding System Design Behavioral

The interview process here is pretty wild. It starts with a recruiter call, then a hiring manager screen, followed by a coding interview. After that, there's a virtual onsite which includes coding, system design, and behavioral questions. If you get through that, you have a 30-minute CTO call. Finally, there's a call with the CEO who can reject you for seemingly no reason, even if everyone else thinks you're a good hire. I actually liked talking to the engineers and other interviewers, those chats were good. But after weeks and multiple rounds where I did well, the CEO just said no. No real feedback or logical explanation, just a rejection after I put in hours of work. The recruiter was also basically MIA, making it hard to get timely responses or updates, which just makes the whole drawn-out process worse. Other reviews suggest this happens a lot, with the CEO rejecting people arbitrarily after they've gone through the whole process. It feels like a pattern and it's disrespectful to waste candidates' time like this. Seven or more rounds just for the CEO to veto everything on a whim is insulting. This company doesn't value candidates' time at all. Better to look elsewhere.

Confirmed questions0 questions

No confirmed questions were included in this interview report.

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Paxos

Software Engineer

Engineering · more than a year ago

Mid Average Negative experience No offer 5 rounds
Interview process
Recruiter call Technical screen Onsite Presentation Background check
Interview formats
Coding Behavioral System Design

Got a ping from a recruiter for this role. First up was a 30-min intro chat with an Engineering Manager, followed by a 1.5-hour live coding session with two engineers. The virtual onsite included another 1-hour live coding session with two engineers, a 1-hour discussion about past projects, and a 45-min behavioural interview. There was a 1-hour system design interview planned for the next day. Both live coding sessions involved medium-level questions on platforms like LeetCode or HackerRank. The coding interviews went great; the interviewers were friendly and open to discussing the role and company. However, the past projects interview was a different story. The interviewer was unhappy because I wouldn't share the deep-level design of my current project due to my contract and NDA, only describing the high-level architecture and components. This wasn't sufficient for him. After that, I was ghosted by the Paxos recruiter, and the next day's interview was cancelled without any notification. Two weeks later, my recruiter informed me I didn't get the job. Pretty unprofessional experience overall.

Confirmed questions5 questions
  • Can you group a list of transactions that share common tags?
  • Design and implement a Round Robin Iterator.
  • Could you explain and illustrate the in-depth design of the project you're currently working on?
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Paxos

Software Engineer

Engineering

Entry Average Positive experience No offer 3 rounds
Interview process
Recruiter call Phone screen Technical screen Onsite Offer
Interview formats
Behavioral Technical Coding

The interview process was really smooth and overall pleasant experience. I was referred to the company by a current employee and within a few days someone reached out to me to set up the initial phone screening. The phone screening was pretty brief but they were friendly friendly and the purpose was really just to see if you are a fit for the company before proceeding. After the phone screening a recruiter reached out to me to set up a video interview. The recruiter was very responsive and helpful and generally had a really quick response time. The video interview was with an engineer from the company and asked a standard data-structure/algorithm type of question. The interviewer was really great! He really knew how to make me feel at ease so that I could perform my best and had a great balance of letting me work things out on my own, but being able to guide me if I got stuck so that they could accurately evaluate my skills. The recruiter then followed up with me that same day to schedule the onsite interview. However, I was unable to make it to the scheduled on-site interview and then received an offer from a different company that required an answer, so I did not end up continuing with Paxos.

Confirmed questions2 questions
  • Can you tell me about yourself and your work experience?
  • Can you answer some questions about data structures?

Paxos Software Engineer Interview Questions

Quoted word for word from Paxos interview reports.

Can you group a list of transactions that share common tags?

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Could you create an iterator that works with three lists and includes next() and hasNext() methods?

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How would you design a system for storing message hashes at scale?

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Can you write the underlying javascript methods for filter, find, reduce?

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Could you implement the mergesort algorithm? (This was a leetcode medium difficulty question.)

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If a Paxos-based Bitcoin partner now wants to integrate with Litecoin, what steps would you take to handle this, considering factors like Litecoin's availability, estimated timelines, and MVP launches?

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Formats, difficulty and experience

Across all 36 Paxos interview reports.

Interview formats

Behavioral 26.5%
Coding 23.5%
System Design 22.4%
Technical 21.4%
Presentation 3.1%

Interview difficulty

Easy 11.1%
Average 72.2%
Difficult 16.7%

Candidate experience

Negative 61.1%
Positive 22.2%
Neutral 16.7%